Measurements of heavy metal concentrations from a background monitoring site in Won Ju City, Korea
- Sang Ji Univ., Won Ju (Korea, Republic of)
- Kunsan National Univ. (Korea, Republic of); and others
The distribution and behavior of seven heavy metal species were investigated using the data collected from a background air-quality monitoring network site established in Won Ju City, Korea. The mean and 1 SD values of seven metal species measured during the campaign periods were as follows: 1.44{+-}0.62 (Fe), 0.088{+-}0.060 (Pb), 0.004{+-}0.005 (Cd), 0.013{+-}0.021 (Cr), 0.19{+-}0.16 (Cu), 0.032{+-}0.019 (Mn), and 0.015{+-}0.013 (Ni) {mu}g/m{sup 3}. In accord with the expectation, the regression analysis of these data sets exhibited good correlations between major crustal components (e.g., Fe and Mn) but extremely poor correlations between anthropogenically derived metal species (like Ni) and other metal species. Investigations of the seasonal trends of these metal species suggest the existence of several distinctive patterns among metals: (1) Pb, Fe and Ni exhibit enrichment during winter/spring relative summer/fall, (2) Cd, Cr and Cu show enrichment during fall/winter relative to spring /summer, and (3) Quite differently from the two patterns described above, Mn is enriched during spring/summer relative to fall/winter. When enrichment factors (EF) of these metals were compiled relative to Fe, it showed values on the decreasing order of: Cd (724), Pb (232), Cu (131), Ni (7.8), Cr (5.5) and Mn (1.2). Using these data, we present the fundamental pictures underlying the geochemical cycling of heavy metal constituents in the background atmosphere.
- OSTI ID:
- 466205
- Report Number(s):
- CONF-9606185-; TRN: 96:005931-0156
- Resource Relation:
- Conference: 5. international conference on atmospheric sciences and applications to air quality, Seattle, WA (United States), 18-20 Jun 1996; Other Information: PBD: 1996; Related Information: Is Part Of The 5th international atmospheric sciences and applications to air quality conference; PB: 322 p.
- Country of Publication:
- United States
- Language:
- English
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