Fate and risk evaluation of persistent organic contaminants and related compounds in Victoria Harbour, Hong Kong
| Autor: | P.A. Connell, Bruce J. Richardson, Des Connell, P.S.K. Lam, Kenneth M.Y. Leung, R.S.S. Wu |
|---|---|
| Rok vydání: | 1998 |
| Předmět: |
Pollution
Environmental Engineering Health Toxicology and Mutagenesis media_common.quotation_subject Stormwater Sewage Food Contamination DDT Environmental protection Risk Factors Benzo(a)pyrene Environmental Chemistry Ecotoxicology Humans Soil Pollutants Water Pollutants Polycyclic Aromatic Hydrocarbons Water pollution Environmental quality Ecosystem media_common business.industry Public Health Environmental and Occupational Health General Medicine General Chemistry Monitoring program Polychlorinated Biphenyls Unresolved complex mixture Seafood Environmental science Hong Kong business Hexachlorocyclohexane |
| Zdroj: | Chemosphere. 36(9) |
| ISSN: | 0045-6535 |
| Popis: | The Environment Protection Department of Hong Kong has a monitoring program for persistent organic contaminants in sediments of Victoria Harbour, the main harbour of Hong Kong. A fugacity model has been used, based on this sedimentary data, to estimate inputs to the system (probably from sewage, stormwater and industrial discharges) as well as the fate of the contaminants, particularly in terms of the aqueous and biotic concentrations. The risk of deleterious effects on the natural marine system, as well as on the consumers of seafood from the system, was carried out using the estimated aqueous and biotic concentrations together with accepted environmental quality guidelines. The result of our analysis indicated that the chlorohydrocarbons, PCBs (as Aroclor 1254) total DDT and total HCH pose a significant risk, and probably have caused damage to the marine ecosystem as well as posing a hazard to seafood consumers. Much higher concentrations of the less toxic total alkanes, nonaromatic hydrocarbons, linear alkyl benzenes and the compounds giving a unresolved complex mixture (UCM) cannot be evaluated due to a lack of environmental guidelines and the complexity of these substances. However, it is probable that these substances add adverse effects to those due to the other contaminants. |
| Databáze: | OpenAIRE |
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