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Mercury Contamination Continues to Be Classed as Environmental Hazard in US
The study, published in Journal of Industrial Ecology, provides policy-makers with a better understanding of opportunities for reducing releases of mercury into the environment.
Mercury released from products contributes nearly one-third of total mercury emissions to the air in the US.
Release of mercury to the environment is a serious problem and can harm the development of a fetus if the mother is exposed to high levels. Mercury also frequently accumulates in fish populations.
A number of highly-used products release mercury throughout their lifecycles, often in ways that are difficult to measure directly. Therefore, there are considerable uncertainties about the magnitude of mercury release into the environment that is associated with these products.
The new study uses a method called substance flow analysis to develop improved estimates of the environmental releases caused by mercury-containing products.
"Mercury-containing products such as thermometers, switches and dental products release mercury throughout the product life-cycle, including during production, use and disposal," said Alexis Cain, lead author of the study and an environmental scientist with the EPA.
"Substance flow analysis can be used to estimate the mercury releases to air, land and water at different stages of a product lifecycle. It can also help identify actions that would be effective in minimizing mercury releases," he added.
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