This Article Full Text (PDF) References Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Add to Saved Citations Download to citation manager Request Permissions Request Reprints Add to My Marked Citations Citing Articles Citing Articles via Google Scholar Citing Articles via Scopus Google Scholar Articles by Fang, G.-C. Articles by Rau, J.-Y. Search for Related Content PubMed PubMed Citation Articles by Fang, G.-C. Articles by Rau, J.-Y. Pubmed/NCBI databases Substance via MeSH Social Bookmarking                         What's this?

The concentration, dry deposition, composition study of ambient air particulate and metallic pollutants at a traffic sampling site

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

Yuh-Shen Wu

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

Chia-Chium Chu

The Chief of Intensive Care Unit, Department of Internal Medicine, Intensive Care Unit, Chien Yu Regional Teaching Hospital, Lin Yuang, Kaohsiung 832, Taiwan

Shih-Han Huang

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

Jui-Yeh Rau

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

Aerosol samples were collected by total suspended particulate (TSP) and dry deposition plate (downward, upward) from August to November in 2003 in central Taiwan. The particulate metallic elements (Fe, Pb, Zn, Cu, Mg and Mn) were also measured in this study during the summer and autumn periods of 2003. The results obtained in this study indicated that the ambient air particulate mass concentrations in the daytime period (averaged 975.4 mg/m³) were higher than the night-time period (averaged 542.1 mg/m³). And the downward dry deposition fluxes (averaged 58.12 mg/m²-sec) were about 2.2 times that of upward dry deposition fluxes (averaged 26.37 mg/m²-sec) in the daytime period. Furthermore, the average downward dry deposition fluxes (averaged 26.54 mg/m²-sec) were also about 2.3 times that of upward dry deposition fluxes (averaged 11.52 mg/m²-sec) in the nighttime period. Moreover, the average downward dry deposition fluxes are greater than the upward dry deposition fluxes for all the heavy metals in either daytime or night-time period. In addition, the deposition velocity for mass, metallic elements (Fe, Pb, Zn, Cu, Mg and Mn) during daytime and night-time period were also calculated. In addition, the average TSP composition (mg/g) in the daytime period of the metallic elements (Fe, Pb, Zn, Cu, Mg and Mn) is 1.73, 0.26, 1.16, 0.28, 0.43 and 0.12 mg/g, respectively. And the average TSP composition in the night-time period of the metallic elements (Fe, Pb, Zn, Cu, Mg and Mn) is 3.02, 0.33, 1.57, 0.41, 0.58 and 0.13 mg/g, respectively at traffic sampling site of central Taiwan.

Key Words: dry deposition • metal • total suspended particulate • traffic

Toxicology and Industrial Health, Vol. 19, No. 1, 25-35 (2003)
DOI: 10.1191/0748233703th170oa


CiteULike    Complore    Connotea    Del.icio.us    Digg    Reddit    Technorati    Twitter    What's this?