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Mercury Skin Rash: Unmasking Chronic Mercury Intoxication as Systemic Disease

How does mercury intoxication manifest as a skin rash. What are the common sources of mercury exposure. How can one reduce mercury exposure from fish consumption. What are the safety measures for handling broken fluorescent bulbs.

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Understanding Mercury and Its Forms in the Environment

Mercury, a naturally occurring element, exists in various forms throughout our environment. These forms include:

  • Elemental metal – found in thermometers and dental fillings
  • Organic compound – methylmercury, created by bacteria in water and entering the food chain
  • Inorganic compound – present in coal and released during power generation

The primary concern for human health stems from inhaling mercury vapor. However, exposure can occur through multiple pathways, with organic methylmercury in the food chain being a significant route.

Common Sources of Mercury Exposure in Daily Life

Mercury can be found in various everyday items and environments. Some common sources include:

  1. Large fish species
  2. Fluorescent and low-energy light bulbs
  3. Mercury thermometers
  4. Dental amalgam fillings
  5. Certain types of batteries

Understanding these sources is crucial for minimizing exposure and protecting one’s health.

The Impact of Mercury on Human Health: Skin Rash and Beyond

Chronic mercury intoxication can manifest in various ways, often masquerading as other systemic diseases. One notable symptom is a mercury-induced skin rash. This dermatological manifestation can be misleading, potentially leading to misdiagnosis if not properly identified.

How does mercury affect the skin? Mercury can cause a range of dermatological issues, including:

  • Rashes
  • Skin discoloration
  • Itching
  • Burning sensations

These symptoms may be accompanied by other systemic effects, highlighting the importance of considering mercury exposure in cases of unexplained skin conditions.

Beyond Skin Deep: Other Health Effects of Mercury Exposure

While skin rashes are a visible sign, mercury intoxication can affect multiple organ systems. Some potential health impacts include:

  • Neurological symptoms (tremors, cognitive impairment)
  • Kidney damage
  • Cardiovascular issues
  • Respiratory problems

Recognizing the diverse manifestations of mercury toxicity is crucial for timely diagnosis and treatment.

Navigating Mercury in the Food Chain: Fish Consumption Guidelines

Fish consumption is a primary route of mercury exposure for many individuals. While fish offers numerous health benefits, certain species contain higher levels of mercury, requiring cautious consumption.

Which fish species are most likely to contain elevated mercury levels? High-mercury fish include:

  • Shark (flake)
  • Orange roughy
  • Swordfish
  • Marlin
  • Southern bluefin tuna
  • Gemfish
  • Ling

Additionally, some freshwater fish in Victoria, Australia, may have high mercury levels due to historical gold mining activities. Large brown trout and redfin in the Upper Goulburn and Lake Eildon areas are of particular concern.

Balancing Fish Consumption: Recommendations for Different Groups

While most people can safely consume fish with higher mercury levels in moderation, certain groups require extra caution. These include:

  • Pregnant women
  • Nursing mothers
  • Women planning pregnancy
  • Children up to six years old
  • Individuals with kidney disease

For these high-risk groups, it’s advisable to avoid fish high in mercury altogether. Others should consult specific guidelines regarding the frequency and quantity of consumption for different fish species.

Mercury in Household Items: Fluorescent Bulbs and Safe Handling Practices

The increasing use of low-energy bulbs has introduced small amounts of mercury into many households. While the quantity in a single bulb is minimal, proper handling and disposal are essential to prevent exposure.

How should one handle a broken fluorescent bulb or lamp? Follow these steps:

  1. Ventilate the room immediately
  2. Wear gloves for protection
  3. Carefully collect glass fragments and powder
  4. Place debris in a sealed container
  5. Use tape to gather remaining small fragments
  6. Clean the area with damp paper towels or wet wipes
  7. Continue ventilating the room for 12-24 hours
  8. Dispose of contaminated items in regular trash, not recycling

By following these guidelines, you can minimize the risk of mercury exposure from broken bulbs in your home.

Reducing Mercury Exposure: Practical Steps for Everyday Life

Minimizing mercury exposure requires a multifaceted approach. Here are some practical steps you can take:

  • Educate yourself about high-mercury fish species and adjust consumption accordingly
  • Choose low-mercury fish options more frequently
  • Properly dispose of mercury-containing items like batteries and fluorescent bulbs
  • Be cautious when handling broken thermometers or other mercury-containing devices
  • Consider alternatives to mercury-containing products when possible

By implementing these measures, you can significantly reduce your risk of mercury exposure and its associated health effects.

The Role of Fish Oil Supplements in Mercury Exposure

Many individuals take fish oil supplements to increase their omega-3 fatty acid intake. While obtaining omega-3s directly from fish is preferable, those who use supplements should be aware of potential mercury concerns.

Are fish oil supplements safe in terms of mercury content? Generally, reputable fish oil supplements undergo purification processes to remove contaminants, including mercury. However, it’s advisable to:

  • Choose supplements from trusted brands
  • Look for products that have been tested for mercury levels
  • Consult with a healthcare provider before starting any supplement regimen

By taking these precautions, you can enjoy the benefits of omega-3 supplementation while minimizing potential mercury exposure.

Mercury in Dental Amalgams: Understanding the Risks and Alternatives

Dental amalgam fillings, which contain mercury, have been a topic of concern for some individuals. While modern amalgams are considered safe for most people, understanding the potential risks and alternatives is important.

What should you know about mercury in dental fillings? Consider the following points:

  • Modern amalgams contain low levels of mercury, deemed safe for the general population
  • The mercury in fillings is bound within the amalgam, limiting exposure
  • Some individuals may prefer mercury-free alternatives for personal reasons
  • Discuss concerns and options with your dentist to make an informed decision

For most people, the benefits of dental amalgams outweigh potential risks. However, individual circumstances and preferences should guide decisions about dental materials.

Mercury-Free Dental Options

For those seeking alternatives to amalgam fillings, several options are available:

  • Composite resin fillings
  • Ceramic or porcelain fillings
  • Gold fillings

Each option has its own set of advantages and considerations. Consult with your dental professional to determine the best choice for your specific needs.

Environmental Impact of Mercury: Beyond Personal Health Concerns

While individual health is a primary concern, the environmental impact of mercury pollution is a broader issue that affects ecosystems and food chains globally.

How does mercury pollution affect the environment? Mercury in the environment can:

  • Accumulate in aquatic ecosystems
  • Biomagnify up the food chain
  • Affect wildlife populations, particularly fish and fish-eating species
  • Contaminate soil and water resources

Recognizing these far-reaching effects underscores the importance of responsible mercury use and disposal at both individual and industrial levels.

Industrial Sources of Mercury Pollution

While individual actions are important, industrial processes contribute significantly to mercury pollution. Major sources include:

  • Coal-fired power plants
  • Gold mining operations
  • Cement production
  • Waste incineration

Addressing these large-scale sources requires coordinated efforts from governments, industries, and environmental organizations.

Diagnosing Mercury Intoxication: Challenges and Approaches

Identifying mercury intoxication can be challenging due to its diverse and often nonspecific symptoms. The potential for mercury-induced conditions to mimic other systemic diseases further complicates diagnosis.

How is mercury poisoning diagnosed? Diagnostic approaches may include:

  • Detailed medical history, including potential exposure sources
  • Physical examination, with attention to characteristic signs
  • Blood and urine tests to measure mercury levels
  • Hair analysis for long-term exposure assessment
  • Neurological and cognitive evaluations

A comprehensive approach is crucial for accurate diagnosis, especially in cases where mercury intoxication masquerades as other conditions.

The Importance of Environmental History in Diagnosis

When evaluating potential mercury poisoning, a thorough environmental history is essential. This may include:

  • Occupational exposures
  • Dietary habits, particularly fish consumption
  • Hobbies or activities that might involve mercury exposure
  • Home environment assessment

This detailed history can provide valuable clues for diagnosis and help identify the source of exposure for effective treatment and prevention.

Treatment Approaches for Mercury Intoxication

Once diagnosed, treating mercury intoxication requires a multifaceted approach tailored to the individual’s specific circumstances and level of exposure.

What are the primary treatment strategies for mercury poisoning? Treatment may involve:

  • Immediate removal from the source of exposure
  • Chelation therapy to remove mercury from the body
  • Supportive care for specific symptoms
  • Nutritional support to aid detoxification
  • Long-term monitoring and follow-up

The effectiveness of treatment often depends on early diagnosis and intervention, highlighting the importance of awareness and prompt medical attention.

Chelation Therapy: Benefits and Considerations

Chelation therapy is a primary treatment for severe mercury poisoning. This approach involves:

  • Administration of chelating agents that bind to mercury
  • Facilitation of mercury excretion through urine or feces
  • Careful monitoring due to potential side effects

While effective, chelation therapy should be conducted under close medical supervision and is typically reserved for cases of significant mercury intoxication.

Prevention Strategies: Minimizing Mercury Exposure in Various Settings

Preventing mercury exposure is key to avoiding its health risks. Effective prevention strategies can be implemented in various settings, including homes, workplaces, and communities.

How can individuals and organizations reduce mercury exposure risks? Consider these approaches:

  • Implement proper handling and disposal procedures for mercury-containing products
  • Choose mercury-free alternatives when available
  • Educate employees and community members about mercury risks and safety measures
  • Support and comply with regulations aimed at reducing mercury use and emissions
  • Regularly assess and update mercury management practices

By adopting a proactive approach to mercury prevention, we can significantly reduce the risk of exposure and its associated health impacts.

Workplace Safety: Protecting Employees from Mercury Exposure

In occupational settings where mercury exposure is a risk, specific safety measures are crucial. These may include:

  • Personal protective equipment (PPE) requirements
  • Regular air quality monitoring
  • Proper ventilation systems
  • Decontamination protocols
  • Employee training on mercury handling and emergency procedures

Employers have a responsibility to ensure a safe working environment, including minimizing the risk of mercury exposure.

The Global Perspective: International Efforts to Reduce Mercury Pollution

Mercury pollution is a global issue that requires international cooperation and coordinated efforts. Various initiatives and agreements aim to address this challenge on a worldwide scale.

What are some key international efforts to combat mercury pollution? Notable examples include:

  • The Minamata Convention on Mercury, a global treaty to protect human health and the environment from mercury
  • United Nations Environment Programme (UNEP) Global Mercury Partnership
  • World Health Organization (WHO) initiatives on mercury and health
  • Regional agreements and action plans in various parts of the world

These international efforts play a crucial role in reducing mercury pollution and its impacts on a global scale.

The Role of Technology in Mercury Reduction

Advancements in technology are contributing to efforts to reduce mercury pollution. Some promising areas include:

  • Mercury-free manufacturing processes
  • Improved pollution control technologies for industrial emissions
  • Enhanced mercury detection and monitoring systems
  • Innovative remediation techniques for contaminated sites

Continued investment in research and development is essential for ongoing progress in mercury pollution reduction.

Future Directions: Research and Policy Needs in Mercury Management

As our understanding of mercury’s impacts grows, ongoing research and policy development are crucial for effective management and risk reduction.

What are some key areas for future focus in mercury research and policy? Important directions include:

  • Improved methods for early detection of mercury exposure and intoxication
  • Development of more effective and safer treatments for mercury poisoning
  • Further investigation into the long-term effects of low-level mercury exposure
  • Refinement of fish consumption guidelines based on ongoing research
  • Exploration of innovative technologies for mercury removal from the environment
  • Enhancement of policies to reduce mercury use and emissions globally

Continued attention to these areas will be essential for advancing our ability to manage mercury risks effectively.

The Importance of Public Education and Awareness

Alongside research and policy efforts, public education plays a crucial role in mercury risk reduction. Key aspects of public awareness initiatives include:

  • Clear communication of mercury risks and exposure sources
  • Practical guidance on reducing personal mercury exposure
  • Information on proper disposal of mercury-containing products
  • Promotion of mercury-free alternatives in consumer choices

Empowering individuals with knowledge is a fundamental step in reducing mercury exposure and its health impacts at a societal level.

Mercury exposure and poisoning – Better Health Channel

Mercury is a natural substance present in the earth, but it is also produced in various industrial and medical uses. In our environment, the three forms of mercury present are:

  • elemental metal – such as in mercury thermometers and dental fillings
  • organic compound – mercury is converted by bacteria in the water into methylmercury and this enters the fish food chain
  • inorganic compound – naturally present in coal, mercury is released into the air when coal is burned to generate power. mercury is also produced as a waste product in various industrial processes.

The majority of exposure to humans is through organic methylmercury that has entered the food chain and accumulates at higher levels in larger species of fish. The major threat to human health from mercury poisoning is from inhaling mercury as a vapour.

Preventing or minimising exposure to mercury in your environment is the best way to reduce your risk of mercury poisoning.

Mercury in the environment

There are a number of common sources of mercury in our environment including:

  • larger fish species – if eaten in large quantities, these can increase the amount of mercury in your body
  • fluorescent and low-energy light bulbs – if broken, there is some risk from inhaling mercury vapour and skin contact with mercury
  • mercury thermometers – the pure mercury (or ‘quicksilver’) from broken thermometers could pose some risk to people if they inhale mercury vapour or have skin contact with mercury
  • dental fillings – modern amalgam fillings have a low level of mercury, which is considered safe for most people
  • batteries – some batteries contain mercury that can enter the environment if they end up in landfill.

Reducing exposure to mercury

There are a number of precautions that you can take to minimise your exposure to mercury while also reducing the amount of mercury in our environment.

Reducing exposure to mercury from fish

Educate yourself about the types of fish that are more likely to contain higher levels of mercury. These include:

  • shark (flake)
  • orange roughy
  • swordfish
  • marlin
  • southern bluefin tuna
  • gemfish
  • ling.

Some freshwater species of fish in Victoria can have high levels of mercury. This is because of Victoria’s goldmining history. Goldmining has increased the level of mercury in the sediment of riverbeds, and this means that large brown trout and redfin in the Upper Goulburn and Lake Eildon (and surrounding rivers) may have high levels of mercury.

Most people can still eat fish with higher levels of mercury, but Food Standards Australia New Zealand recommend that they should be eaten less often than fish species with lower levels of mercury. People in high-risk groups (such as pregnant women, children and people with kidney disease) should check the recommendations before eating these fish.

The recommendations for the quantities of fish that can be eaten are different for pregnant women and children compared with the rest of the adult population. Pregnant women, nursing mothers, women planning pregnancy and children up to six years old should avoid fish high in mercury.

Many people take supplements of fish oil to increase their intake of omega-3 fats. While it is better to get your omega-3 fats from fish rather than supplements, if you do use fish oil capsules, check to see if the product has been tested for mercury levels.

Reducing exposure to mercury from fluorescent bulbs and lamps

In 2010, new standards were introduced for low-energy bulbs in Australia. This means that the number of low-energy bulbs has greatly increased and these bulbs contain small levels of mercury. The mercury-containing bulbs include fluorescent tube lamps and the compact low-energy bulbs mostly used in homes.

The amount of mercury in a single bulb or lamp is very small and unlikely to harm people. Commercial and public lighting uses many more lamps and FluoroCycle is a voluntary national scheme to recycle mercury-containing lamps for industrial and public lighting.

For information on lamps used at home, you can contact your local council to find out how best to dispose of light bulbs and lamps.

Broken tubes, bulbs or lamps can be cleaned up as follows:

  • Air (ventilate) the room.
  • Wear gloves and scoop up all the glass fragments and powder.
  • Put all the broken globe or tube into a rigid, sealed container.
  • Use sticky tape to pick up any remaining small glass fragments and powder.
  • Wipe the area clean with damp paper towels or disposable wet wipes and place them in a glass jar or plastic bag.
  • Continue to air the room for 12 to 24 hours.
  • Dispose of the mercury and any contaminated items in the rubbish, not in the recycling bin.

Reducing exposure to mercury from thermometers and other devices

Spirit-containing thermometers are now widely available, but some people still use thermometers containing silver mercury. Intact, these are not dangerous, but when broken there is the possibility of inhaling mercury vapour and of skin contact. These spills should be cleaned up carefully.

The procedure includes the following steps:

  • Clear the room of people and pets.
  • Air (ventilate) the room for 15 minutes (turn off ducted heating or cooling) before cleaning up.
  • Do not use a vacuum cleaner or broom.
  • Remove jewellery, wear gloves and wear old clothing that you can throw away.
  • Clean up using an eyedropper or syringe to pick up droplets of mercury or use a pen or card to guide the droplets onto a piece of card.
  • Use sticky tape to pick up small droplets.
  • Place mercury droplets into a strong plastic container with a lid.
  • Keep the room ventilated for 24 hours.
  • Place any item (including clothes) that came into contact with the mercury into a sealed plastic bag and place in the rubbish.
  • Contaminated carpet and other absorbent items will need to be cut out or removed and disposed of carefully.
  • More detailed information is available for cleaning procedures.

Other devices around the home can contain more than two tablespoons of mercury. These include thermostats and some medical equipment (such as a sphygmomanometer – to measure blood pressure). Large mercury spills need to be professionally cleaned up. The following steps should be taken:

  • Evacuate the area.
  • Air (ventilate) the area.
  • Contain the spill – call triple zero (000) and ask for fire services.
  • Clean up the spill – this should be performed by experienced professionals who specialise in hazardous chemicals.

Reducing exposure to mercury from dental fillings

Dental fillings are used to treat damaged or worn teeth and can be made of amalgam that contains mercury, silver and tin. This substance is used because of its strength, especially in the back teeth that are under a lot of pressure during chewing. Modern amalgam has low levels of mercury and is considered safe for most people.

Alternate materials for fillings that are similar in colour to teeth do not contain mercury but these are not as strong as amalgam. You can replace your amalgam fillings with this material, but it might not last as long, especially in your back teeth. Replacing fillings can also be expensive. Speak with your dentist about your options.

Some people are advised to avoid getting new amalgam fillings and to avoid having existing amalgam removed or replaced if possible including:

  • pregnant women – mercury may cross the placenta and enter the bloodstream of the unborn baby
  • women who are breastfeeding – mercury may be passed to the baby through breastmilk
  • children – growing and developing teeth are more sensitive to the effects of any chemical substances in the environment, including mercury
  • people with kidney disease – high levels of mercury exposure can affect the kidneys, so exposure to mercury should be minimised.

While there is currently no scientific evidence directly linking amalgam with either ill health or birth defects, these recommendations have been made for precautionary reasons.

Reducing exposure to mercury from batteries

Not all batteries contain mercury, but those that do can damage the environment if they end up in landfill. Your local council can give you advice about safe disposal of batteries.

People at risk of exposure to mercury

The effect of mercury exposure depends on the type of mercury. In general, mercury tends to affect the nervous system. This means that unborn babies and children are at more risk because their nervous systems are developing.

People at higher risk from mercury exposure include:

  • unborn babies
  • infants
  • children up to six years of age
  • workers in industrial settings where mercury is used or produced
  • people with kidney disease
  • people born before the 1950s who were exposed to mercury in baby products and contracted pink disease.

Pregnant women should avoid mercury so that it is not transmitted to their unborn baby via the bloodstream. Levels of mercury in breastmilk are normally not high enough to be a risk for babies.

Pink disease

In the first half of the twentieth century, teething powders and other products for babies contained mercury and some babies contracted pink disease. In this condition, the feet, hands and the tip of the nose are bright pink. Other skin problems, diarrhoea and lethargy were also symptoms. Pink disease is now rare, but adults who had pink disease are more sensitive to mercury and may have a number of other health complaints.

Symptoms of mercury poisoning

Symptoms of mercury poisoning depend on the form of the mercury that was the source of the exposure. Early symptoms of mercury poisoning can include a metallic taste in the mouth and numbness and tingling in the hands, feet and face.

Symptoms of methylmercury poisoning from fish

Most people have some methylmercury in their tissues, but these are at a level that not does cause damage. Excess methylmercury particularly affects the nervous symptom. For unborn babies, infants and children this is especially damaging as their brains and nervous systems are developing.

Methylmercury poisoning can cause disturbances in:

  • peripheral vision
  • sensation, especially on the hands, feet and mouth
  • coordination and walking
  • speech and hearing
  • muscle strength.

Symptoms of poisoning from elemental mercury

This type of poisoning is most likely to occur if there is a spill of mercury from a thermometer or other mercury-containing device. Poisoning is often caused by inhaled mercury vapour, especially in places where there is poor ventilation. Symptoms include:

  • tremors
  • headaches
  • difficulty sleeping
  • impaired sensations
  • muscle weakness and twitching
  • emotional changes (mood swings, irritability, nervousness)
  • kidney damage
  • breathing difficulties
  • death.

Symptoms of poisoning from inorganic mercury

This type of poisoning is more likely to be related to industrial exposure. Symptoms of inorganic mercury poisoning include:

  • skin conditions (rashes and dermatitis)
  • breathing problems
  • mood changes
  • problems with memory
  • mental health issues
  • reduction in muscle strength.

Diagnosis of mercury poisoning

Poisoning from methylmercury can take weeks or months to appear. A chemical spill with elemental mercury or inorganic mercury might give you symptoms more rapidly.

Mercury poisoning is diagnosed by testing your blood and urine for mercury levels. Urine might be collected over a 24-hour period. Your doctor will ask about the history of your possible exposure and may also monitor your temperature, pulse rate, blood pressure and breathing.

If mercury poisoning is suspected, treatment might begin before the diagnosis is confirmed. This is because the test results can take some time to come back to the doctor.

Treatment of mercury poisoning

If mercury poisoning is suspected in people who are critically ill, your doctor will most likely treat you with chelation therapy, no matter what form of mercury caused the poisoning. Chelation therapy is made up of compounds that enter your bloodstream and bind to the mercury so that it can be eliminated by your body.

Where to get help

  • Victorian Poisons Information Centre Tel. 13 11 26 – for advice when poisoning or suspected poisoning occurs and poisoning prevention information (24 hours, 7 days)
  • Your doctor
  • Your dentist
  • Detox your Home, Sustainability Victoria Tel. 1300 363 744 – for advice about energy, waste and recycling items such as fluorescent lamps

Things to remember

  • There are a number of common sources of mercury in our environment.
  • Certain species of fish, fluorescent and low-energy lamps, mercury-containing thermometers, some batteries and amalgam dental fillings contain some mercury.
  • Preventing or minimising exposure to mercury in your environment is the best way to reduce the risk of mercury poisoning.
  • Pregnant women, infants and children, and people with kidney disease should especially avoid exposure to excess mercury.

Mercury exposure and poisoning – Better Health Channel

Mercury is a natural substance present in the earth, but it is also produced in various industrial and medical uses. In our environment, the three forms of mercury present are:

  • elemental metal – such as in mercury thermometers and dental fillings
  • organic compound – mercury is converted by bacteria in the water into methylmercury and this enters the fish food chain
  • inorganic compound – naturally present in coal, mercury is released into the air when coal is burned to generate power. mercury is also produced as a waste product in various industrial processes.

The majority of exposure to humans is through organic methylmercury that has entered the food chain and accumulates at higher levels in larger species of fish. The major threat to human health from mercury poisoning is from inhaling mercury as a vapour.

Preventing or minimising exposure to mercury in your environment is the best way to reduce your risk of mercury poisoning.

Mercury in the environment

There are a number of common sources of mercury in our environment including:

  • larger fish species – if eaten in large quantities, these can increase the amount of mercury in your body
  • fluorescent and low-energy light bulbs – if broken, there is some risk from inhaling mercury vapour and skin contact with mercury
  • mercury thermometers – the pure mercury (or ‘quicksilver’) from broken thermometers could pose some risk to people if they inhale mercury vapour or have skin contact with mercury
  • dental fillings – modern amalgam fillings have a low level of mercury, which is considered safe for most people
  • batteries – some batteries contain mercury that can enter the environment if they end up in landfill.

Reducing exposure to mercury

There are a number of precautions that you can take to minimise your exposure to mercury while also reducing the amount of mercury in our environment.

Reducing exposure to mercury from fish

Educate yourself about the types of fish that are more likely to contain higher levels of mercury. These include:

  • shark (flake)
  • orange roughy
  • swordfish
  • marlin
  • southern bluefin tuna
  • gemfish
  • ling.

Some freshwater species of fish in Victoria can have high levels of mercury. This is because of Victoria’s goldmining history. Goldmining has increased the level of mercury in the sediment of riverbeds, and this means that large brown trout and redfin in the Upper Goulburn and Lake Eildon (and surrounding rivers) may have high levels of mercury.

Most people can still eat fish with higher levels of mercury, but Food Standards Australia New Zealand recommend that they should be eaten less often than fish species with lower levels of mercury. People in high-risk groups (such as pregnant women, children and people with kidney disease) should check the recommendations before eating these fish.

The recommendations for the quantities of fish that can be eaten are different for pregnant women and children compared with the rest of the adult population. Pregnant women, nursing mothers, women planning pregnancy and children up to six years old should avoid fish high in mercury.

Many people take supplements of fish oil to increase their intake of omega-3 fats. While it is better to get your omega-3 fats from fish rather than supplements, if you do use fish oil capsules, check to see if the product has been tested for mercury levels.

Reducing exposure to mercury from fluorescent bulbs and lamps

In 2010, new standards were introduced for low-energy bulbs in Australia. This means that the number of low-energy bulbs has greatly increased and these bulbs contain small levels of mercury. The mercury-containing bulbs include fluorescent tube lamps and the compact low-energy bulbs mostly used in homes.

The amount of mercury in a single bulb or lamp is very small and unlikely to harm people. Commercial and public lighting uses many more lamps and FluoroCycle is a voluntary national scheme to recycle mercury-containing lamps for industrial and public lighting.

For information on lamps used at home, you can contact your local council to find out how best to dispose of light bulbs and lamps.

Broken tubes, bulbs or lamps can be cleaned up as follows:

  • Air (ventilate) the room.
  • Wear gloves and scoop up all the glass fragments and powder.
  • Put all the broken globe or tube into a rigid, sealed container.
  • Use sticky tape to pick up any remaining small glass fragments and powder.
  • Wipe the area clean with damp paper towels or disposable wet wipes and place them in a glass jar or plastic bag.
  • Continue to air the room for 12 to 24 hours.
  • Dispose of the mercury and any contaminated items in the rubbish, not in the recycling bin.

Reducing exposure to mercury from thermometers and other devices

Spirit-containing thermometers are now widely available, but some people still use thermometers containing silver mercury. Intact, these are not dangerous, but when broken there is the possibility of inhaling mercury vapour and of skin contact. These spills should be cleaned up carefully.

The procedure includes the following steps:

  • Clear the room of people and pets.
  • Air (ventilate) the room for 15 minutes (turn off ducted heating or cooling) before cleaning up.
  • Do not use a vacuum cleaner or broom.
  • Remove jewellery, wear gloves and wear old clothing that you can throw away.
  • Clean up using an eyedropper or syringe to pick up droplets of mercury or use a pen or card to guide the droplets onto a piece of card.
  • Use sticky tape to pick up small droplets.
  • Place mercury droplets into a strong plastic container with a lid.
  • Keep the room ventilated for 24 hours.
  • Place any item (including clothes) that came into contact with the mercury into a sealed plastic bag and place in the rubbish.
  • Contaminated carpet and other absorbent items will need to be cut out or removed and disposed of carefully.
  • More detailed information is available for cleaning procedures.

Other devices around the home can contain more than two tablespoons of mercury. These include thermostats and some medical equipment (such as a sphygmomanometer – to measure blood pressure). Large mercury spills need to be professionally cleaned up. The following steps should be taken:

  • Evacuate the area.
  • Air (ventilate) the area.
  • Contain the spill – call triple zero (000) and ask for fire services.
  • Clean up the spill – this should be performed by experienced professionals who specialise in hazardous chemicals.

Reducing exposure to mercury from dental fillings

Dental fillings are used to treat damaged or worn teeth and can be made of amalgam that contains mercury, silver and tin. This substance is used because of its strength, especially in the back teeth that are under a lot of pressure during chewing. Modern amalgam has low levels of mercury and is considered safe for most people.

Alternate materials for fillings that are similar in colour to teeth do not contain mercury but these are not as strong as amalgam. You can replace your amalgam fillings with this material, but it might not last as long, especially in your back teeth. Replacing fillings can also be expensive. Speak with your dentist about your options.

Some people are advised to avoid getting new amalgam fillings and to avoid having existing amalgam removed or replaced if possible including:

  • pregnant women – mercury may cross the placenta and enter the bloodstream of the unborn baby
  • women who are breastfeeding – mercury may be passed to the baby through breastmilk
  • children – growing and developing teeth are more sensitive to the effects of any chemical substances in the environment, including mercury
  • people with kidney disease – high levels of mercury exposure can affect the kidneys, so exposure to mercury should be minimised.

While there is currently no scientific evidence directly linking amalgam with either ill health or birth defects, these recommendations have been made for precautionary reasons.

Reducing exposure to mercury from batteries

Not all batteries contain mercury, but those that do can damage the environment if they end up in landfill. Your local council can give you advice about safe disposal of batteries.

People at risk of exposure to mercury

The effect of mercury exposure depends on the type of mercury. In general, mercury tends to affect the nervous system. This means that unborn babies and children are at more risk because their nervous systems are developing.

People at higher risk from mercury exposure include:

  • unborn babies
  • infants
  • children up to six years of age
  • workers in industrial settings where mercury is used or produced
  • people with kidney disease
  • people born before the 1950s who were exposed to mercury in baby products and contracted pink disease.

Pregnant women should avoid mercury so that it is not transmitted to their unborn baby via the bloodstream. Levels of mercury in breastmilk are normally not high enough to be a risk for babies.

Pink disease

In the first half of the twentieth century, teething powders and other products for babies contained mercury and some babies contracted pink disease. In this condition, the feet, hands and the tip of the nose are bright pink. Other skin problems, diarrhoea and lethargy were also symptoms. Pink disease is now rare, but adults who had pink disease are more sensitive to mercury and may have a number of other health complaints.

Symptoms of mercury poisoning

Symptoms of mercury poisoning depend on the form of the mercury that was the source of the exposure. Early symptoms of mercury poisoning can include a metallic taste in the mouth and numbness and tingling in the hands, feet and face.

Symptoms of methylmercury poisoning from fish

Most people have some methylmercury in their tissues, but these are at a level that not does cause damage. Excess methylmercury particularly affects the nervous symptom. For unborn babies, infants and children this is especially damaging as their brains and nervous systems are developing.

Methylmercury poisoning can cause disturbances in:

  • peripheral vision
  • sensation, especially on the hands, feet and mouth
  • coordination and walking
  • speech and hearing
  • muscle strength.

Symptoms of poisoning from elemental mercury

This type of poisoning is most likely to occur if there is a spill of mercury from a thermometer or other mercury-containing device. Poisoning is often caused by inhaled mercury vapour, especially in places where there is poor ventilation. Symptoms include:

  • tremors
  • headaches
  • difficulty sleeping
  • impaired sensations
  • muscle weakness and twitching
  • emotional changes (mood swings, irritability, nervousness)
  • kidney damage
  • breathing difficulties
  • death.

Symptoms of poisoning from inorganic mercury

This type of poisoning is more likely to be related to industrial exposure. Symptoms of inorganic mercury poisoning include:

  • skin conditions (rashes and dermatitis)
  • breathing problems
  • mood changes
  • problems with memory
  • mental health issues
  • reduction in muscle strength.

Diagnosis of mercury poisoning

Poisoning from methylmercury can take weeks or months to appear. A chemical spill with elemental mercury or inorganic mercury might give you symptoms more rapidly.

Mercury poisoning is diagnosed by testing your blood and urine for mercury levels. Urine might be collected over a 24-hour period. Your doctor will ask about the history of your possible exposure and may also monitor your temperature, pulse rate, blood pressure and breathing.

If mercury poisoning is suspected, treatment might begin before the diagnosis is confirmed. This is because the test results can take some time to come back to the doctor.

Treatment of mercury poisoning

If mercury poisoning is suspected in people who are critically ill, your doctor will most likely treat you with chelation therapy, no matter what form of mercury caused the poisoning. Chelation therapy is made up of compounds that enter your bloodstream and bind to the mercury so that it can be eliminated by your body.

Where to get help

  • Victorian Poisons Information Centre Tel. 13 11 26 – for advice when poisoning or suspected poisoning occurs and poisoning prevention information (24 hours, 7 days)
  • Your doctor
  • Your dentist
  • Detox your Home, Sustainability Victoria Tel. 1300 363 744 – for advice about energy, waste and recycling items such as fluorescent lamps

Things to remember

  • There are a number of common sources of mercury in our environment.
  • Certain species of fish, fluorescent and low-energy lamps, mercury-containing thermometers, some batteries and amalgam dental fillings contain some mercury.
  • Preventing or minimising exposure to mercury in your environment is the best way to reduce the risk of mercury poisoning.
  • Pregnant women, infants and children, and people with kidney disease should especially avoid exposure to excess mercury.

Beware: mercury! – Useful information

Reminder to the public

Mercury is a silvery-white liquid metal, specific gravity under normal conditions is 13.55 gcm3. Metallic mercury is poison. The main route of mercury entry into the human body, leading to the development of acute and chronic poisoning, is inhalation. Acute poisoning of people is possible when the concentration of mercury in the air is in the range of 0.13-0.8 mgm3. Materials such as wood, plastic, paint, etc. actively absorb mercury vapor. A serious danger to people is mercury, which accumulates (deposits) under the floor, in cracks, etc. It is a source of secondary infection of the object. After demercurization and ventilation of the premises, the concentration of vapors in the air decreases to the permissible level, but then mercury vapor begins to be released from the structural materials and their concentration increases sharply and can exceed the permissible value by many times.

Mercury vapor even at concentrations of 100 MPC (maximum permissible concentrations) and more have no color, no smell, no taste, do not have an immediate irritating effect on the respiratory, vision, skin integuments.

Mercury vapor poisoning appears after 8-24 hours.

Acute mercury vapor poisoning causes copper-red coloration of the mucous membranes of the mouth and pharynx, metallic taste in the mouth, nausea, vomiting, abdominal pain, possible increase in body temperature up to 39°C. After a few hours, and sometimes days, an upset stomach may appear. There is redness, swelling and bleeding of the gums.

All of the above phenomena are accompanied by an extremely painful condition, a feeling of fear, severe headaches and pain when swallowing, rapid pulse, cardiac weakness, cramps in the calf muscles. Possible fatal outcome.

Chronic mercury poisoning (merculism) usually begins with mild symptoms of acute poisoning. In the future, general malaise, loss of appetite, and weight loss gradually develop. The affected person becomes nervous, weakness, drowsiness, heavy dreams and irritability, headaches, joint pains appear. In severe cases of poisoning, working capacity, mental activity, and memory are reduced. A “mercury tremor” (trembling) of the fingers, eyelids, lips and toes develops – typical signs of mercury neurasthenia.

Metallic mercury and its vapors affect not only the internal organs of a person, but also affect his skin (hair loss, rash, itching, changes in skin sensitivity).

ATTENTION CITIZENS:

If you broke a thermometer:

First – do not panic, in domestic conditions, competent demercurization (neutralization of surfaces contaminated with metallic mercury) can be carried out independently.

1. Open windows to let fresh air in and lower the temperature in the room (the warmer it is in the apartment, the more metal evaporates).

2. Restrict people’s access to the room where the device crashed (close the doors) in order to prevent the spread of mercury to adjacent rooms and the spread of vapors around the apartment, lay a rug soaked in a solution of potassium permanganate at the entrance.

3. Start the demercurization process.

Conduct a thorough inspection of things and surfaces that may have been exposed to droplets of mercury. All contaminated items should be placed in plastic bags and taken out of the room. Carefully and carefully collect all the fragments of the thermometer and mercury balls in any sealed container (for example, a glass jar with a polyethylene lid). A medical pear with a thin tip, an enameled scoop, a sheet of thick paper, and an adhesive plaster will help well in this work.

Vacuum cleaner is not recommended as when mercury is collected by a vacuum cleaner in the room, the concentration of vapors increases sharply and when working without protective equipment, you can get tangible poisoning; after such a procedure, an ordinary vacuum cleaner can no longer be used for its intended purpose due to heavy pollution. Washing vacuum cleaners can be restored only after thorough washing with special solutions.

Treat floors and objects that have been exposed to mercury with a chlorine-based product. Chemical neutralization is carried out as follows:

– in a plastic (not metal!) bucket, a solution of chlorine-containing bleach (“Whiteness” or bleach powder) is prepared at the rate of 1 liter of the product per 8 liters of water (2% solution). With the resulting solution, using a sponge, brush or floor cloth, the floor and other contaminated surfaces are washed. Particular attention is paid to the cracks of parquet and skirting boards. The applied solution is kept for 15 minutes, then washed off with clean water.

– in the future, it is desirable to regularly wash the floor with soap and soda solution and intensive ventilation.

4. Think about your own health :

a) wash gloves and shoes with soap and soda solution

b) rinse your mouth and throat;

c) brush your teeth thoroughly;

d) take 2-3 activated charcoal tablets.

What should I do if mercury is found somewhere?

Sometimes mercury is found spilled in the entrance, at the workplace, sometimes it is found by children. Such cases, unfortunately, are not rare.

This is an emergency and should not be dealt with on your own. Remember that you can never accurately determine how much of a hazardous substance is spilled, where it leaked and how much evaporated.

Professionals clean the room with chemicals that react with and neutralize mercury, and then wash away the compounds.

Licensed organizations on the territory of the Vladimir region engaged in the demercurization and disposal of mercury-containing waste:

Engineering LLC

Address: Vladimir, st. Gorky, house 106, office 41,

tel./fax 8 (4922) 34-08-15

– Econorma LLC

Address: Vladimir, st. Dvoryanskaya, house 27 “A”, building 7, office 28

Tel. 8 (4922) 37-12-13

Works are carried out in accordance with the price list, prices must be specified by phone organizations.

Symptoms of mercury poisoning – AMO