National Atmospheric Deposition Program. Mercury Deposition Network. Mercury Deposition Network. Mercury Analytical Laboratory. 2000 Annual Quality Assurance Report

摘要

Since January 1996, Frontier GeoSciences Inc. (FGS) has served as the Mercury Analytical Laboratory (HAL) and Site Liaison Center for the Mercury Deposition Network (MDN). MDN, coordinated through the National Atmospheric Deposition Program (NADP), was designed with the primary objective of quantifying the wet deposition of mercury in North America to determine long-term geographic and temporal distributions. MDN has grown to incorporate over 97 sites in the United States and Canada. In 2007, MDN is expected to incorporate 10-15 additional new sites. As the HAL, FGS receives weekly precipitation samples to be analyzed for total mercury. HAL also analyzes samples for methylmercury from selected sites participating in the methylmercury program. The analytical technique--Modified EPA Method 1631 Revision B--was developed by Nicolas S. Bloom, one of FGS founders. FGS also served as the referee lab for the Method 1631 final validation study. Robert Brunette, Principle Investigator and HAL Director, oversees FGS's involvement in MDN.