Reduce pollution. Save lives. Protect the planet.

Pure Earth has identified mercury as one of the world’s top toxic threats. Because much of the mercury released into the environment is the result of artisanal and small-scale gold mining (ASGM),  Pure Earth’s global mercury work focuses on ASGM mining communities around the world.

Understanding The Problem

Mercury is a toxic heavy metal and one of the top ten chemicals of major public health concern according to the World Health Organization. Pure Earth estimates that 19 million people are at risk for exposure to mercury globally Exposure to mercury can cause damage to the nervous, digestive, and immune systems, as well as the lungs, kidneys, skin, and eyes. Mercury is particularly dangerous to young children, babies in utero, and pregnant women. The mercury released into the environment knows no borders and contaminates rivers and oceans, fish and other marine animals, and eventually the global food chain. Pure Earth’s Toxic Sites Identification Program has identified and assessed over 500 sites around the world where exposure to mercury threatens the health of the population.

The Impact from Artisanal and Small-Scale Gold Mining

Up to 20% of the world’s gold comes from artisanal and small-scale gold mining (ASGM) which is responsible for the release of an estimated 2,000 tons of mercury annually, representing about 30% of the world’s anthropogenic mercury releases, according to United Nations Industrial Development Organization (UNIDO). As much as 95% of all mercury used in ASGM mining is released into the environment. Once released, mercury travels around the world, dropping into oceans and rivers, contaminating the seafood we all consume. Artisanal and small-scale gold mining (ASGM) is responsible for an estimated 1,000 tons of mercury annually, representing about 30% of the world’s anthropogenic mercury releases, according to United Nations Industrial Development Organization (UNIDO).


Mercury-Free Methods
Mercury-Free Methods
Over 1500 miners trained worldwide

Pure Earth trains miners to go mercury-free, to safeguard their livelihoods and enable them to work safely while protecting their families and environment.

To date, Pure Earth has trained over 1500 miners, including many women, to go mercury-free.

Over 6,000 Mining Community Members Reached

Pure Earth raises awareness about mercury poisoning with miners, their families, school children and others in the community.

Our community education and training programs have reached over 6000 mining community members.

About 10 Hectares of the Amazon Rainforest Restored

Pure Earth is one of the few organizations working directly with miners to safely close out old mining sites through reforestation, which rehabilitates previously degraded ecosystems. Miners Pure Earth has worked within Peru calls it “fulfilling their obligation to the rainforest.

To date, Pure Earth has helped artisanal gold miners in Peru restore about 10 hectares of the Amazon rainforest stripped and polluted by gold mining activity.

Mine to Market Solutions 
Mine to Market Solutions 
Connecting Miners with Jewelry Industry

Pure Earth is working to help create awareness and demand for mercury-free gold and connect jewelers and others in this industry to mercury-free miners.
Our efforts include working with the international jewelry industry to find a mine-to-market solution, and supporting women mining cooperatives in Indonesia, and connecting them with local jewelers who agree to buy their mercury-free gold at a premium.

Reforestation Solution

Pure Earth is the only organization working directly with artisanal miners to “fulfill their obligation to the rainforest”

Gold Mining in the Amazon Rainforest

Solutions to Poisoning and Pollution

Our Impact


1100 miners trained in mercury-free techniques.

3750 children, community members, health workers and government officials educated.

Miners, especially women, report increased earnings.

Latin America
Latin America

310 miners trained in mercury-free techniques

550 mining community members and health workers educated

110 mercury sites identified and assessed

10 hectares of rainforest stripped by gold mining restored


200 miners trained in mercury-free techniques

1500 government stakeholders, health workers, miners and community members educated

85 mercury sites identified and assessed

100 retorts/70 water-box-condensers distributed, reducing mercury emissions by 4750 kgs annually

Women’s Working Group organized to give artisanal women miners opportunities to earn more with mercury-free gold


250 mercury sites identified and assessed

10 communities trained to reduce mercury use

Mine to Market Solution

Pure Earth connects jewelry industry to mercury-free artisanal miner

First purchase of mercury-free gold from the Peruvian Amazon for the international market.

How The Jewelry Industry Can Be A Leader In Solving The Global Issue Of Mercury Pollution From Artisanal & Small-Scale Gold Mining (ASGM)

Pure Earth has been working with the jewelry industry to solve this issue.

Explore ways to support projects in the field, including – Contact [email protected] or 845-548-4769 to learn how you can get involved 

The Toxic Truth

Trapping a Slippery Foe

Pure Earth’s innovative global mercury index explained in The Chemical Engineer magazine.