Ecological Risk Assessment of Water Benzo (a) pyrene Contamination in China
- VernacularTitle:我国水体中苯并(a)芘污染的生态风险评价
- Author:
Fang ZHOU
;
Cheng SUN
;
Ming ZHONG
- Publication Type:Journal Article
- Keywords:
Water;
Water pollution;
Benzo(a)pyrene;
Evaluation studies
- From:
Journal of Environment and Health
1993;0(03):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the present situation of water benzo (a) pyrene contamination in China and to make an ecological risk assessment. Methods B(a)P, one of the 16 prior-controlled polycyclic aromatic hydrocarbons pollutants selected by US EPA, is used to reflect the potential risk of PAHs, a strong carcinogen. Since the content of B(a)P in water is rather low, the contamination levels in the sediment of domestic water environment are assessed with two ecological assessment standards: risk assessment guidelines of chemical concentrations in marine and estuary sediments and sediment quality guidelines for the protection of aquatic life and probable effects levels for adverse biological effects. Results The contents of B(a)P were 0.06-707.12 ng/g in sediment of rivers and lakes, 7.1-1 492.12 ng/g in surface sediment of seaports, marines, and tidal flats respectively. Conclusion Domestic water environment is generally suffered from B(a)P contamination, but still under the adverse effect level.
