First step for an ecological risk assessment to evaluate the impact of diffuse pollution in Lake Vela (Portugal)

被引：20

作者：

Abrantes, Nelson ^{[1
]}

Pereira, Ruth ^{[1
]}

Goncalves, Fernando ^{[1
]}

机构：

[1] Univ Aveiro, Dept Biol, P-3810193 Aveiro, Portugal

来源：

ENVIRONMENTAL MONITORING AND ASSESSMENT | 2006年 / 117卷 / 1-3期

关键词：

ecological risk assessment; lakes; nutrients; pesticides; problem formulation;

D O I：

10.1007/s10661-006-0765-6

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Lake Vela, located in the Portuguese littoral-centre, is a temperate shallow lake exhibiting a high trophic status. This aquatic ecosystem has been potentially exposed to contamination generated by agricultural and livestock activities held in their drainage basin, which seriously compromise their health. This work summarizes some background information and presents the problem formulation step of the ERA. Therefore, it evaluates the characteristics of the stressor(s), describes the ecological system and receptors and suggests a conceptual model, which predicts the potential exposure pathways, relating suspected sources to the defined endpoints. This introductory step also described an analysis plan on the entire study, which includes a delineation of the assessment design, data needs, measures, and methods for conducting the analysis phase of the risk assessment process.

引用

页码：411 / 431

页数：21

共 88 条

[1]

ABRANTES N, 2002, THESIS U AVEIRO DEP

[2] Formation and transport of the sulfonic acid metabolites of alachlor and metolachlor in soil [J].