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Seasonal variation in concentration and metallic constituents of atmospheric particulates near the western coast of central Taiwan

Air Toxic and Environmental Analysis Laboratory, Hungkuang University, Sha-Lu, Taichung 433, Taiwan ROC, gcfang{at}sunrise.hk.edu.tw

Yuh-Shen Wu

Air Toxic and Environmental Analysis Laboratory, Hungkuang University, Sha-Lu, Taichung 433, Taiwan ROC

Wen-Jhy Lee

Department of Environmental Engineering, National Cheng Kung University, Tainan 70101, Taiwan ROC, Sustainable Environment Research Center, National Cheng Kung University, Tainan 70101, Taiwan ROC

Te-Yen Chou

Air Toxic and Environmental Analysis Laboratory, Hungkuang University, Sha-Lu, Taichung 433, Taiwan ROC

I-Chen Lin

Air Toxic and Environmental Analysis Laboratory, Hungkuang University, Sha-Lu, Taichung 433, Taiwan ROC

In addition to determining the concentration and metallic constituents of particulate matter at Taichung Harbor in central Taiwan, this study attempts to characterize the mass, metallic elements, composition and concentrations of total suspended particulates (TSP), fine particles and coarse particles. Statistical approaches, such as the Spearman tests, were also adopted to determine the seasonal variations of concentrations of these pollutants. Experimental results indicate that the mean TSP, fine particulate and coarse particulate concentrations in spring and winter are higher than in summer and autumn on the western coast of central Taiwan. Spearman statistical analysis of metallic elements Mn and Pb showed high concentration coefficients for fine and coarse particulates on the western coast of central Taiwan. The order of mean metallic concentrations in TSP, coarse particulates and fine particles was Fe-Zn-Mg-Cu-Cr-Mn-Pb in TSP, Fe-Cu-Zn-Mg-Mn-Pb-Cr in coarse particulates and Fe-Cu-Mg-Pb-Zn-Mn-Cr in fine particulates.

Key Words: composition • concentrations • metallic elements • Spearman

Toxicology and Industrial Health, Vol. 22, No. 5, 193-201 (2006)
DOI: 10.1191/0748233706th262oa


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