The Zero Mercury Working Group (ZMWG) is an international coalition of more than 110 public interest environmental and health non-governmental organizations from over 55 countries from around the world formed in 2005 by the European Environmental Bureau and the Mercury Policy Project. ZMWG strives for zero supply, demand, and emissions of mercury from all anthropogenic sources, with the goal of reducing mercury in the global environment to a minimum. Our mission is to advocate and support the adoption and implementation of a legally binding instrument which contains mandatory obligations to eliminate where feasible, and otherwise minimize, the global supply and trade of mercury, the global demand for mercury, anthropogenic releases of mercury to the environment, and human and wildlife exposure to mercury.

The Zero Mercury Working Group was born out of the Zero Mercury Campaign project having as its ultimate objective ‘Zero’ emissions, demand and supply of mercury, from all sources we can control, in view of reducing to a minimum, mercury in the environment at EU level and globally. The project started in November 2004, by the European Environmental Bureau (EEB) in collaboration with the Mercury Policy Project . Details on the project can be found here.

More than 110 public interest environmental and health non-governmental organizations from over 55 countries.

About Mercury

Mercury and its compounds are highly toxic to humans, especially to the developing nervous system. They are also harmful to ecosystems and wildlife populations. Microbial metabolism of deposited mercury can create methylmercury, which has the capacity to collect in organisms (bioaccumulate) and to concentrate up food chains (biomagnify), especially in the aquatic food chain. Methylmercury is a well documented neurotoxicant, which may in particular cause adverse effects on the developing brain. It readily passes both the placental barrier and the blood-brain barrier, therefore, exposures during pregnancy are of highest concern. It may also cause adverse effects on the cardiovascular system, thereby leading to increased mortality. Methylmercury compounds are considered possible carcinogenic to humans according to the International Agency for Research on Cancer. Furthermore, inhalation of elemental mercury vapour includes symptoms such as tremors, insomnia, memory loss, neuromuscular changes, and headaches. Kidney and thyroid may be affected.

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Latest News

March 30, 2022

Convention on Mercury agrees to phase out major category of fluorescent light bulbs, but last-minute interventions delay action on another

CLiC Press Release Bali, Indonesia – At the Minamata Convention on Mercury fourth Conference of Parties (COP4), 137 governments adopted amendments to phase out a major category of fluorescent lighting, but actions were stalled on others. All fluorescent light bulbs contain mercury, a chemical of major public health concern according […]
March 30, 2022

UN Bans Mercury Satellite Propellants Under New Minamata Treaty Provisions

PEER/ZMWG Press release Bali, Indonesia—On Saturday, the United Nations adopted a provision to phase out the use of mercury as a satellite propellant by 2025 during the Fourth Meeting of the Conference of the Parties to the Minamata Convention on Mercury.[i]  Public interest NGOs who have been following the issue […]
March 14, 2022

California Court Rules Amazon Must Protect Consumers

BERKELEY, CA—MARCH 14, 2022—The California Court of Appeals Friday ruled Amazon, the world’s largest store, must comply with consumer protection laws including warning California consumers when products sold on its marketplace contain chemicals listed by California as carcinogens or reproductive toxicants. As You Sow and other consumer advocates applauded the […]