Mercury Poisoning Claims

Updated July 2026

Mercury is highly toxic and workplace exposure may result in mercury poisoning claims. You can claim compensation for mercury poisoning at work in the UK when your employer exposes you to unsafe levels of mercury or fails to follow strict safety regulations. Workplace exposure can cause serious, long‑lasting health problems. Therefore, if an employer does not adhere to their legal duties when it comes to mercury exposure in the workplace, an employee may have the right to pursue a personal injury claim for the damage caused.

What Is Mercury Poisoning and Why It Matters

Mercury poisoning happens when a worker absorbs mercury through inhalation, skin contact, or ingestion. The most dangerous form is mercury vapour, which is easily inhaled and quickly enters the bloodstream. Breathing mercury fumes can cause nausea, vomiting, fever and muscles aches and pains, according to a UK government publication. It can also cause chest pains, respiratory problems and breathlessness and if breathed in large amounts, mercury fumes may cause lung damage and may even affect the kidneys, liver and muscles. Mercury is a neurotoxin and can affect the body’s central nervous system.

Mercury poisoning is not regarded as a minor workplace hazard and employers are legally required to follow strict regulations, including the Control of Substances Hazardous to Health (COSHH) rules, to keep their workers safe.

If they fail, you may be entitled to compensation.

Industries Where Workers Face a Risk of Mercury Exposure

Mercury exposure is not limited to heavy industry as many may think and it can appear in more workplaces than many people realise. Below are some of the industries where mercury poisoning is a recognised risk.

• Chemical manufacturing: Mercury is used in certain chemical processes, including chlorine production and catalyst manufacturing. Workers may inhale vapours or handle contaminated equipment.
• Mining and metal refining: Mercury occurs naturally in some ores. When heated or processed, it releases toxic vapours.
• Dentistry: Dental amalgam contains mercury. Improper handling, spills, or poor ventilation can expose dental staff.
• Laboratories and research facilities: Mercury is used in experiments, thermometers, and specialist equipment. Breakages or poor storage increase exposure risk.
• Waste management and recycling: Fluorescent bulbs, batteries, electronics, and medical waste often contain mercury. Workers may be exposed when sorting, crushing, or processing materials.
• Manufacturing of electrical equipment: Mercury switches, lamps, and older components can leak or release vapours during production or disposal.
• Pharmaceutical production: Some processes historically used mercury compounds, and legacy contamination can still pose risks.

When Does Mercury Exposure Become Employer Negligence?

To claim compensation, you must be able to show that your employer failed in their legal duty to protect you. Mercury poisoning claims typically arise from one or more of the following breaches.

Failure to Provide Adequate PPE

Employers must supply:

• Respirators
• Gloves
• Protective clothing
• Eye protection

Poor Ventilation or Extraction Systems

Mercury vapour must be controlled. If your workplace lacked proper ventilation or extraction units, your employer may be liable.

Inadequate Training

Workers must be trained to:

• Handle mercury safely
• Store it correctly
• Clean spills
• Dispose of contaminated materials

If you weren’t trained in the above, that’s regarded as a breach of duty.

Failure to Conduct Risk Assessments

Under COSHH, employers must assess mercury risks. If they didn’t identify hazards or implement controls, they may be negligent.

Ignoring Spills or Contamination

Mercury spills must be cleaned immediately using specialist procedures. If your employer ignored contamination, they put you at risk.

Lack of Health Monitoring

Workers exposed to mercury should undergo regular health checks. If your employer failed to monitor exposure, this strengthens your claim.

Using Outdated or Unsafe Equipment

Old mercury‑containing devices can leak or break. Employers must replace or maintain them safely.

If any of these failures contributed to your exposure, you may be entitled to compensation for the harm caused.

How to Claim Compensation for Mercury Poisoning at Work

You can bring a personal injury claim when employer negligence caused your mercury poisoning and you are able to prove the link between workplace mercury exposure and the harm you have suffered.

To do this, the process typically involves:

Medical diagnosis: A doctor confirms mercury poisoning through blood or urine tests.

Documenting symptoms: Keep a symptom diary of how your health has changed.

Reporting the exposure: Notify your employer and ensure the incident is logged.

Gathering evidence: This may include workplace photos, witness statements, training records, or safety reports.

Proving negligence: You must show your employer failed to protect you.

Calculating compensation: This covers pain, suffering, lost earnings, medical treatment, and long‑term care if needed.

Mercury poisoning claims often involve complex medical evidence, so it’s advisable to speak to a personal injury solicitor. We work with solicitors who are experienced in work injury claims and who offer a free consultation to assess whether you have a valid claim.

FAQs About Mercury Poisoning Claims

• How long do I have to claim? Usually, three years from the date of exposure or
• Can I claim if exposure happened gradually? Yes. Many cases involve long‑term exposure.
• What evidence helps prove mercury exposure? Medical test results, COSHH records, PPE logs, spill reports, witness statements, and photos of unsafe conditions all help support your claim.
• What if my employer denies responsibility? Claims can still proceed with independent evidence
• What compensation could I receive? Damages may cover pain, suffering, lost earnings, medical treatment, rehabilitation, and long‑term care if your condition affects your ability to work.
• Can I claim after a single spill or incident? Yes. Acute exposure from a spill or sudden release of vapour can justify a claim if proper safety procedures weren’t followed.
• Do I need to leave my job to make a claim? No. Many employees claim while still working. Employers cannot legally dismiss you for making a legitimate personal injury claim.
• Can lack of training make my employer negligent? Yes. Employers must train staff to handle mercury safely, manage spills, and use PPE correctly.

What To Do Next

We partner with lawyers who offer an initial, free consultation and No Win No Fee agreements, so to get started:

Please contact us today on 0333 358 3034 or fill in our online claim form.

About Our Legal Expert: This content is produced with oversight by Michael Jefferies, Managing Director who has over 30 years’ legal experience.

Written by Tanya Waterworth, Digital Content Writer