Hispanics face disproportionate health threat from coal plant's toxic mercury pollution

Percentage of Hispanics who consume fish that they catch, and lack of bilingual mercury advisories are major factors

An analysis of several studies conducted among Latinos reveal that this community faces a disproportionate risk from toxic mercury pollution because of a combination of cultural, economic and linguistic factors.

The analysis – based largely on previously unreleased data from the polling firm Bendixen & Amandi's 2008 National Survey of Latinos on the Environment – provides new evidence that toxic mercury pollution, which primarily comes from coal-fired plants, constitutes a clear and present danger to the health of the Latino community.

According to the Sierra Club survey, 31 percent of Latinos fish regularly, and 76 percent of those eat and share what they catch with their families. These families include young children and women of childbearing age, the two most vulnerable population sectors to mercury poisoning.

By far the country’s largest mercury source is coal-fired power plants, which in 2009 alone spewed more than 130,000 pounds of this toxin into the environment. Mercury poisoning occurs by ingesting contaminated fish. The mercury is brought down by rain onto waterways, where it becomes its most toxic version, methyl-mercury. The fish absorb it and so do humans by ingesting the fish.

Exposure to mercury in utero can contribute to birth defects including neurological and developmental disorders, learning disabilities, delayed onset of walking and talking, and cerebral palsy. At least 1 in 12, and as many as 1 in 6 American women have enough mercury in their bodies to put a baby at risk. That means that over 300,000 babies are born each year at risk of mercury poisoning.

A study conducted by the University of California at Davis titled, "Fishing for Justice or Just Fishing," revealed that Hispanic anglers fish close to their urban communities because of a lack of transportation options. The fish caught in urban areas tend to contain the highest concentrations of mercury contamination.

And this exposure is already showing high levels of mercury contamination among Hispanic anglers. According to another University of California at Davis study, Hispanic anglers in California on average ingest 13.9 micrograms of mercury per day via fish they catch, mostly in local waters. This is almost twice the Environmental Protection Agency’s safe limit.

The "Fishing for Justice or Just Fishing" study also found that this problem is compounded by several factors, the most important being the fact that fish advisories and warning signs posted near waterways are very rarely in Spanish.

Source: Sierra Club, “New Analysis Finds that Hispanics Face Disproportionate Health Threat from Coal Plant's Toxic Mercury Pollution,” www.sierraclub.org/mercury, June 14, 2011

Read more