Distribution of Polynuclear Aromatic Hydrocarbons and Heavy Metals in Various Sizes of Airborne Particulates
スポンサーリンク
概要
- 論文の詳細を見る
This paper describes on the distribution of polynuclear aromatic hydrocarbons (PAHs) and heavy metals in various sizes of airborne particulates. Airborne particulates in a polluted area of Kawasaki city were col-lected on glass fiber filters according to particle size using an Andersen high volume sampler, and 3 PAHs [benzo-(a) pyrene (BaP), benzo (k) fluoranthene (BkF), benzo (ghi) perylene (BghiP) and 8 heavy metals (Fe, Pb, Cu, Mn, V, Cd, Ni and Cr)] in these particulates were measured.<BR>These chemicals mentioned above were divided into 3 groups by their distribution characteristics. The contents of the chemicals belonging to the first group (the 3 PAHs, Pb, Cd, and V) increased with the decrease in the particle size. On the contrary, the content of Fe, which is belonging to the 2 nd group, increased as the particle size increased. The chemicals in the 3rd group (Mn, Cu, Ni, and Cr) were lowest in their contents at the 1.1-3.3 μm particulates and their contents increased as the particse size increased or decreased than that particle size.<BR>BaP, BkF, BghiP, pyrene, perylene and coronene as well as the 8 heavy metals in the 1.1 μm or less particulates were analysed in due consideration that these particulates had a high deposition rate in the lung. The collection of the particulates was done for all seasons in the ambient air in Kawasaki city. The content of BaP, a srtong carcinogen, was 0.36-12.4 ng/m<SUP>3</SUP>, and that of the BghiP, a co-carcinogen, was 1.27-14.8 mg/m<SUP>3</SUP>. Statistical analysis showed that there were significant correlations among the 6 PAHs, Pb, Cd and V which had the same distribution characteristics. Distribution of PAHs in a particulate was also discussed.
- 社団法人 大気環境学会の論文
社団法人 大気環境学会 | 論文
- Spatio-Temporal Variations of Daily Average Concentration of NO2 in an Area with Trunk Roads
- Autoxidation of Methyl linoleate Initiated by Combustion Smoke of Combustibles
- Spatio-Temporal Variations of Daily Average of NO2Concentration in the Vicinity of a Crossroads
- Long-lived Gas-phase Radicals from Combustion
- Effective Combinations of Trapping Adsorbents and Extractive Solvents for Measuring Airborne Pesticides