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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

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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/m3, 3.17, and 0.024 ng/m3, 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/m2 min and 0.022 ng/m2 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/m3, 2.74, and 0.018 ng/m3, 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/m2 min and 0.016 ng/m2 min, respectively, at the Hung-kuang (Traffic) sampling site during the nighttime sampling period.

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Acknowledgments

The authors gratefully acknowledge the National Science Council of the R.O.C. (Taiwan) for financial support under project No. NSC 99-2221-E-241 -006 -MY3.

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Correspondence to Guor-Cheng Fang.

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Fang, GC., Lin, YH., Chang, CY. et al. 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. Environ Geochem Health 36, 605–612 (2014). https://doi.org/10.1007/s10653-013-9584-1

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  • DOI: https://doi.org/10.1007/s10653-013-9584-1

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