Comparison of Particulate Mercury Measured with Manual and Automated Methods

Abstract

A study was conducted to compare measuring particulate mercury (Hg^P) with the manual filter method and the automated Tekran system. Simultaneous measurements were conducted with the Tekran and Teflon filter methodologies in the marine and coastal continental atmospheres. Overall, the filter Hg^P values were on the average 21% higher than the Tekran Hg^P, and >85% of the data were outside of ±25% region surrounding the 1:1 line. In some cases the filter values were as much as 3-fold greater, with