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 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 […]
March 10, 2022

Skin Lighteners Still Online Despite Mercury Findings

REPEAT OFFENDERS: Ebay, Amazon and Flipkart among websites selling high mercury skin lighteners, according to the Zero Mercury Working Group  271 online products tested from 17 countries: nearly half contained too much mercury  Some products had thousands of times more mercury than legal limit International coalition of NGOs* urge governments […]
November 12, 2021

ZMWG @ Minamata COP4.1

The Zero Mercury Working Group participated at the Minamata Convention COP4.1 Due to the ongoing COVID-19 pandemic situation, it was agreed that the fourth Conference of the Parties (COP-4) would take place in two segments: a first segment (COP4.1) to be conducted online within the period of 1 to 5 November […]