YSK Fish bought in markets in Brazil’s Amazon highly contaminated with mercury
Why YSK: Among the health problems that can be caused by mercury contamination are vision loss, motor and speech difficulties, hearing impairment, neurological damage, and even cancer. In pregnant women, the fetus may experience neurological disorders, damage to the kidneys and cardiovascular system.
The consumption of fish is endangering the health of people living in six of the seven states in the Northern region of Brazil, according to a study released by Fundação Oswaldo Cruz (Oswaldo Cruz Foundation), Greenpeace Brazil, the Indigenous Research and Training Institute (Iepé), the Socio-Environmental Institute (ISA), and WWF Brazil.
According to analyses conducted on fish samples, there are levels of mercury contamination far above what is considered safe for human consumption by the World Health Organization, which is 0.5 micrograms per gram of fish. In some cases, the levels were 31.5 times higher than the limit.
Mercury is widely used in illegal gold mining operations in the Amazon region during the process of separating gold from stones, mud, and other materials in rivers. For the researchers, finding such high levels of fish in cities far from the areas where the miners operate reveals that mercury contamination of fish is no longer solely an issue affecting indigenous communities.