Abstract
ABSTRACTThis study analyzes the concentrations of ambient fine particulates and particulate-bound mercury Hg(p) at sampling sites in various areas in central Taiwan during a sampling period from January to April 2015. A Wilbur PM2.5 sampler was used to collect PM2.5 from ambient air and a DMA-80 direct mercury analyzer was used to analyze the concentration of mercury Hg(p) that was attached to PM2.5. The results show that the mean PM2.5 and Hg(p) concentrations were highest in March. The Chinese Lantern Festival and the “Faithful Pilgrims Who Follow Matsu through Taiwan” are hosted in this month. Many fireworks and firecrackers are let off at this time, releasing particulate matter into the atmosphere, increasing the concentrations of atmospheric particulate pollutants. The highest average PM2.5 concentrations were measured in January. A dust storm in Mainland China may have been responsible for this result. February saw the lowest mean PM2.5 recorded in this study, possibly because commercial districts and factories were closed in February for Chinese Lunar New Year. April saw the highest mean wind speed, diluting particulate pollutants in ambient air.
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