title: Concentrations of particulates in ambient air, gaseous elementary mercury (GEM), and particulate-bound mercury (Hg(p)) at a traffic sampling site: a study of dry deposition in daytime and nighttime.
abstract: In this investigation, the concentrations of particles in ambient air, gaseous elemental mercury (GEM), and particulate-bound mercury (Hg(p)) in total suspended particulates (TSP) as well as dry deposition at a (Traffic) sampling site at Hung-kuang were studied during the day and night in 2012. The results reveal that the mean concentrations of TSP in ambient air, GEM, and Hg(p) were 69.72 μg/m(3), 3.17, and 0.024 ng/m(3), respectively, at the Hung-kuang (Traffic) sampling site during daytime sampling periods. The results also reveal that the mean rates of dry deposition of particles from ambient air and Hg(p) were 145.20 μg/m(2) min and 0.022 ng/m(2) min, respectively, at the Hung-kuang (Traffic) sampling site during the daytime sampling period. The mean concentrations of TSP in ambient air, GEM, and Hg(p) were 60.56 μg/m(3), 2.74, and 0.018 ng/m(3), respectively, at the Hung-kuang (Traffic) sampling site during the nighttime sampling period. The mean rates of dry deposition of particles and Hg(p) from ambient air were 132.58 μg/m(2) min and 0.016 ng/m(2) min, respectively, at the Hung-kuang (Traffic) sampling site during the nighttime sampling period.
authors.affiliation: Department of Safety, Health and Environmental Engineering, HungKuang University, Sha-Lu, Taichung 433, Taiwan, gcfang@sunrise.hk.edu.tw.
authors.forename: Guor-Cheng
authors.initials: GC
authors.lastname: Fang
authors.forename: Yen-Heng
authors.initials: YH
authors.lastname: Lin
authors.forename: Chia-Ying
authors.initials: CY
authors.lastname: Chang
authors.forename: Yu-Cheng
authors.initials: YC
authors.lastname: Zheng
mesh_terms: D000393:Air Pollutants / Q000032:analysis; D004784:Environmental Monitoring / Q000379:methods; D008628:Mercury / Q000032:analysis*; D018986:Motor Vehicles; D052638:Particulate Matter / Q000032:analysis*; D012621:Seasons; D013624:Taiwan
chemical_list: D000393:Air Pollutants; D052638:Particulate Matter; D008628:Mercury