June 2011

Valves 2011 Supplement

Fugitive emissions from valves: Update

‘Leak-free’ involves monitoring and new equipment technology

Wilwerding, J., SAGE Environmental Consulting, L.P.

Fugitive emissions awareness and mitigation have come a long way in the last 50 years, especially in the US. Initial fugitive emission studies of sources in the Los Angeles basin were done by Bernie Steigerwald in 1958. In the 1970s, the US Environmental Protection Agency (EPA) embarked on a substantial effort to quantify these emissions and develop a standard “sniff test” to identify hydrocarbon leaks using portable hydrocarbon analyzers (known as EPA Reference Method 21). The 1980’s saw promulgation of the first significant regulations requiring synthetic organic chemicals manufacturing (SOCMI) industries and petroleum refineries to institute “find them and fix them

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