Polychlorinated biphenyl, dibenzodioxin, and dibenzofuran occurrence in the general environment in Italy
| Autor: | S. Silvestri, L. Turrio Baldassarri, Roberto Miniero, Fabrizio Volpi, A.R. Fulgenzi, Fabiola Ferri, C. La Rocca, Fabrizio Rodriguez, Nicola Iacovella, P. Tafani, A. di Domenico, E. Scotto di Tella |
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| Rok vydání: | 1993 |
| Předmět: |
Pollution
geography Topsoil Environmental Engineering geography.geographical_feature_category Chemistry Health Toxicology and Mutagenesis media_common.quotation_subject Public Health Environmental and Occupational Health Sediment Polychlorinated biphenyl General Medicine General Chemistry Dibenzofuran chemistry.chemical_compound Cave Environmental chemistry Environmental Chemistry media_common |
| Zdroj: | Chemosphere. 27:83-90 |
| ISSN: | 0045-6535 |
| DOI: | 10.1016/0045-6535(93)90279-e |
| Popis: | Topsoil and sediment samples from the Italian general environment were assayed for PCBs, PCDDs, and PCDFs. PCB levels appear to range between 6.2 × 102 and 1.6 × 104 ng/kg in open areas and between 1.2 × 102 and 6.8 × 102 ng/kg in cave samples. PCDD plus PCDF levels, as TCDD equivalents (TE units), are between 1.0 × 10−1 and 4.3 ngTE/kg in open areas, and between 5.7 × 10−2 and 1.2 × 10−1 ngTE/kg in cave samples. The less chlorinated PCB homologs seem to reach higher relative levels in cave sediments than in the topsoil of open areas, this probably due to a lower dissipation rate. PCDD plus PCDF levels (TE units) versus cumulative PCB levels provide highly significant linear regression in logarithmic coordinates. |
| Databáze: | OpenAIRE |
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