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EPA sets first national standard to reduce mercury emissions from gold production

By Gerald Ondrey |

The U.S. Environmental Protection Agency (EPA; Washington, D.C.; www.epa.gov) is cutting emissions from gold ore processing and production facilities with a new standard that will reduce annual mercury emissions by more than 75% from 2007 levels. This action is one of several steps EPA is taking to reduce mercury levels in our environment, which can damage children’s developing brains and nervous systems even before they are born. EPA’s action sets the first national standard for mercury air emissions from industrial gold production, the seventh largest source of mercury air emissions in the country. Cuts made to meet the standard will build on the progress that has already been made under the state of Nevada’s successful program for controlling mercury emissions from precious metal mining. There are more than 20 facilities that extract gold from ore that will need to meet the requirements of the rule within three years. Some facilities in Nevada already are making significant progress toward the federal requirements under that state’s program. Mercury in the air eventually deposits into water, where it changes into methylmercury, a highly toxic form that builds up in fish. People are primarily exposed to mercury…
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Reduce Explosion Risk in 2 Seconds with In Situ Oxygen Analysis

Changing to GPro® 500 in situ TDL sensors has reduced measurement time from 20 seconds to 2, and almost eliminated analyzer maintenance.

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