Cyanide does not remain stable in heat—it evaporates or disperses. This is different from other heavy metals such as mercury, which can accumulate in aquatic systems.
read more... https://english.shannews.org/archives/29552
Cyanide does not remain stable in heat—it evaporates or disperses. This is different from other heavy metals such as mercury, which can accumulate in aquatic systems.
read more... https://english.shannews.org/archives/29552
Banlas, or sluice mining—a highly destructive mining method—involves pouring large amounts of water onto a mountain’s surface to loosen soil and rocks to extract gold ore, which is then panned using mercury.
read more... https://newsinfo.inquirer.net/2203684/another-illegal-mining-operation-dismantled-in-south-cotabato
Several studies have also found high concentrations of toxic heavy metals and other chemicals, including cadmium, mercury, lead, and arsenic, near the mine.
read more... https://www.thereporterethiopia.com/49936/
To separate the gold from the silt, they use two silent assassins: mercury and cyanide. These chemicals are dumped directly into the soil and the riverbeds, creating a toxic legacy that scientists warn will haunt the West African water table for the next 800 years.
read more... https://thesun.ng/galamsey-plague-why-nigeria-is-next/
The effects of galamsey are already evidenced in polluted waterways, deforested landscapes, and mercury-poisoned communities.
read more... https://gna.org.gh/2026/03/ghanas-war-on-galamsey-a-fight-for-the-future/
Colonel Eric Amponsah Buah, Coordinator of the National Anti‑Illegal Mining Operations Secretariat (NAIMOS), has called for intensified public support against illegal mining, citing threats to water bodies and national security.
read more... https://www.myjoyonline.com/naimos-seeks-stronger-public-support-in-galamsey-fight/
“Is it any wonder that we now have traces of toxic chemicals including mercury and cyanide used in illegal mining ending up not only in rivers and aquatic life but also seeping into arable lands to contaminate food and cash crops with the obvious health complications?”, it asked.
read more... https://ghanaiantimes.com.gh/protect-rivers-now-or-face-water-crisis-frwb/amp/
The most severe and documented impacts include the intensive use of mercury to separate gold from sediments. When discharged into rivers and streams, this metal can transform into methylmercury, a highly toxic substance that contaminates aquatic ecosystems and poses a serious threat to human health.
read more... https://www.oas.org/en/IACHR/jsForm/?File=/en/iachr/media_center/PReleases/2026/048.asp
In the years since, informal and illegal miners, reportedly many of them foreign nationals entering through weakly monitored border crossings, have moved into the area. Authorities and local residents have long raised concerns that gold extraction methods involving mercury and arsenic are contaminating water sources and damaging surrounding forest.
read more... https://ticotimes.net/2026/03/23/costa-rica-court-orders-urgent-action-on-illegal-mining-in-crucitas
Costa Rica’s Security Minister Mario Zamora, reveal newly dug tunnels, collapsed mountain sections, and pools for washing ore with cyanide and mercury, contaminating soil and water and threatening nearby populations. Despite a $1 million security operation involving about a hundred police officers per shift, the authorities admit their capacity to control the sprawling illegal activity is minimal.
read more... https://slguardian.org/border-gold-rush-how-illegal-mining-is-overrunning-costa-rica/
A study in EXCLI Journal has also explored how illegal activities in the Amazon, like mining and logging, have negatively affected the health of the area's Indigenous people. Mercury used in illegal mining raises toxins in the environment and makes diseases like malaria more common by creating places where it's easy to spread.
Mary Shikwato is among those who work in gold mines within the Bushiangala area. She suspects mercury exposure has put her at risk of various health complications.
Heavy metal contamination from illegal gold mining operations in Ghana is devastating the environment and causing severe health problems for workers and local communities, reports an award-winning three-part video series from JoyNews TV-Ghana. Reporter Erastus Asare Donkor and video editor Kofi Asare traversed the country, meticulously documenting the link between mining contamination and local health issues.
read more... https://www.sej.org/publications/inside-story/poisoned-gold-project-pricks-nation-s-conscience
In that region of the Guianas, “there are operators from China working in territories where there is a strong presence of illegal mining,” Bram Ebus, founder of Amazon Underworld, told Diálogo. “It is the Chinese who buy the sand already treated with mercury, which captures between 25 percent and 30 percent of the gold, and then process it in their country in cyanidation plants, where the remaining gold is recovered in much higher percentages.”
read more... https://dialogo-americas.com/articles/china-and-the-amazons-illegal-gold-the-plot-behind-clandestine-mining/
Gold mining operations often utilize mercury or cyanide to extract gold from the ore. In the process, mercury binds to gold, forming amalgams that are later separated by releasing toxic vapors or waste. In unregulated or artisanal mining (ASM),
read more... https://farmonaut.com/mining/gold-hunting-environmental-impact-7-key-effects-on-land
CHIANG RAI: Artists from 11 countries staged a live performance along the Kok River on Saturday, highlighting growing concern over toxic contamination linked to upstream mining in Myanmar and calling on authorities to address the crisis and restore the river.
read more... https://transbordernews.in.th/home/?p=45431
The GI-TOC report found 20 active mining sites in Milxo, run by at least 18 commercial operators. Many employ foreign technical staff and rely on hazardous, rudimentary extraction methods, including widespread mercury use and cyanide leaching.
Amazon: Massive riverine gold mining has driven both wealth and degradation—especially pronounced in Peru’s Madre de Dios, with notable mercury contamination.
read more... https://farmonaut.com/mining/artisanal-small-scale-mining-of-global-gold-output
For eight times the minimum wage, all a galamsey miner in Manso-Adubea has to do after each day shift is to wash the mined gold in a lead mercury mixture with water pumped directly from Nsuo Abena, W’aha, or any of the surrounding rivers that people depend on for survival and agricultural activities. Afterwards, he dumps the water-heavy-metal solution directly back into the land. Sometimes this washes downstream into rivers. Other times, it is absorbed into the soil.
read more... https://africasacountry.com/2026/03/slow-death-by-food
“Illegal gold mining often uses mercury and cyanide which are highly toxic for both the environment and human health”, says Erich Moreira Lima, the Brazilian Federal Police’s Head of Forensic Geology. “Recent years have seen a sharp rise in the amount of gold on the Brazilian market, reaching around 85 tons a year, and about 25 per cent of that is likely mined from illegal sites.”
Raising the issue in Parliament on Monday, he said the scale of environmental degradation, particularly from illegal mining, demands decisive legal action.
read more... https://www.myjoyonline.com/60-of-our-water-bodies-are-polluted-minority-chief-whip-pushes-ecocide-law/
Dr. Owusu, a lecturer at the School of Nursing and Midwifery, Central University, says exposure to heavy metals such as lead, mercury, and arsenic through contaminated food, water, or air can seriously damage vital organs.
read more... https://www.myjoyonline.com/galamsey-chemicals-and-air-pollution-linked-to-rising-diabetes-risk-in-children/
The expansion is accelerating deforestation, contaminating rivers with mercury and exposing remote communities to violence and organized crime, even as the government says it is stepping up enforcement.
read more... https://apnews.com/article/peru-illegal-gold-mining-amazon-mercury-indigenous-1938504793e97fc181acaf1e63213028
More recently, Gasparinnetti et al. (2024) estimated that values associated with social and environmental damage of gold mining range from $187,200 to $389,200 per kilogram of gold. This was mostly attributable to mercury contamination, which represents more than twice the market value of gold. The valuation framework depended on impact valuation of deforestation, land degradation and mercury contamination.
read more... https://ghanaiantimes.com.gh/gold-revenue-at-what-environmental-cost-a-case-for-green-gdp-for-ghana/amp/
Researchers from the Federal University of Western Pará (UFOPA) and collaborators analyzed arsenic (As), cadmium (Cd), mercury (Hg), and lead (Pb) in six popular fish species collected directly from local fishermen in five municipalities of western Pará - regions impacted by artisanal gold mining and bauxite extraction.
read more... https://www.openpr.com/news/4412302/amazon-fish-contaminated-with-toxic-metals-threaten-riverine
It said illegal mining released toxic substances (mercury, lead, arsenic, and cyanide) into water sources, soil, and the food chain.
The letter said pregnant women and young children were exposed to contaminated drinking water, fish, crops, and household dust.
read more... https://www.myjoyonline.com/paediatric-society-of-ghana-warns-galamsey-threatens-childrens-brain-development/
It said illegal mining released toxic substances (mercury, lead, arsenic, and cyanide) into water sources, soil, and the food chain.
The letter said pregnant women and young children were exposed to contaminated drinking water, fish, crops, and household dust.
read more... https://www.myjoyonline.com/paediatric-society-of-ghana-warns-galamsey-threatens-childrens-brain-development/
Parts of the river are contaminated by mercury and waste from the menace of illegal gold mining, which has been taking place unabated for years.
read more... https://www.heraldonline.co.zw/toxic-toll-midlands-rivers-choked-by-mercury-mining-activities/