[Method of ecological risk assessment for risk pollutants under short-term and high dose exposure in water pollution accident].
Huan Jing Ke Xue
; 32(11): 3240-6, 2011 Nov.
Article
em Zh
| MEDLINE
| ID: mdl-22295619
ABSTRACT
In recent years, water pollution accidents resulting in acute aquatic ecological risk and security issues become a research focus. However, in our country, the surface water quality standards and drinking water health standards were used to determine the safety of waters or not in pollution incidents due to lacking safety effect threshold or risk value for protection of aquatic life. In foreign countries, although predicted no effect concentration (PNEC) or risk value (R) of pollutants were provided for protection of aquatic organisms, the PNECs or risk values were derived based on long-term exposure toxicity data NOECs (no observed effect concentrations) and lack of short-term exposure risk or threshold values. For the short-term and high dose exposure in pollution incident, ecological risk assessment methods were discussed according to the procedures of the conventional ecological risk assessment and the water quality criteria establishment of the U.S. EPA for the protection of aquatic organisms in short-term exposure, and had a case study. At the same time, we provide some suggestions for the establishment of ecological risk assessment system in water pollution incidents.
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Base de dados:
MEDLINE
Assunto principal:
Poluentes Químicos da Água
/
Poluição da Água
/
Monitoramento Ambiental
/
Exposição Ambiental
/
Vazamento de Resíduos Químicos
Tipo de estudo:
Etiology_studies
/
Prognostic_studies
Limite:
Animals
País como assunto:
Asia
Idioma:
Zh
Ano de publicação:
2011
Tipo de documento:
Article