Abstract
Ambient air particulate-bound Hg (Hg[p]) concentrations, dry deposition and dry deposition velocity were measured using a cold vapor atomic fluorescence spectrometry (CVAFS) analyzer in the spring season (between March 2011 to June 2011) at the Westin Park sampling site, in Sha-Lu central Taiwan. The results indicated that the highest ambient air Hg(p) concentrations total suspended particles (TSP) occurred in April (0.050 ng/m3) while the lowest ambient air Hg(p) concentrations in TSP occurred in March (0.011 ng/m3). Moreover, the results showed that the highest Hg(p) dry deposition occurred in June (0.019 ng/m2*min), while the lowest ambient air Hg(p) dry deposition occurred in March (0.002 ng/m2*min). In addition, the results also showed that the highest and lowest dry deposition velocity for ambient air Hg(p) occurred in June (2.46 cm/sec) and May (0.18 cm/sec), respectively. Finally, the average highest and lowest dry deposition velocity for ambient air particulates occurred in March (9.010 cm/sec) and April (2.09 cm/sec), respectively.
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