Ambient Mercury Observations near a Coal-Fired Power Plant in a Western U.S. Urban Area.

ABSTRACT: We report on the continuous ambient measurements of total gaseous mercury (TGM) and several ancillary air quality parameters that were collected in Colorado Springs, CO. This urban area, which is located adjacent to the Front Range of the Rocky Mountains, is the second largest metropolitan area in Colorado and has a centrally located coal-fired power plant that installed mercury (Hg) emission controls the year prior to our study. There are few other Hg point sources within the city. Our results, which were obtained from a measurement site < 1 km from the power plant, show a distinct diel pattern in TGM, with peak concentrations occurring during the night (1.7 ± 0.3 ng m^-3) and minimum concentrations mid-day (1.5 ± 0.2 ng m^-3). The TGM concentrations were not correlate

SUBMITTER: Gratz LE 

PROVIDER: S-EPMC6711202 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature