Response of a grassland ecosystem to air pollutants. V. A toxicological model for the assessment of dose-response relationships for air pollutants and ecosystems

被引：17

作者：

Dammgen, U

Grunhage, L

机构：

[1] Inst Agroecol, Fed Agr Res Ctr Braunschweig, D-38116 Braunschweig, Germany

[2] Univ Giessen, Inst Plant Ecol, D-35392 Giessen, Germany

来源：

ENVIRONMENTAL POLLUTION | 1998年 / 101卷 / 03期

关键词：

air pollutants; ecosystems; dose-response; gaseous pollutants; ecotoxicology;

D O I：

10.1016/S0269-7491(98)00052-9

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The principles of the interaction between gaseous air pollutants and ecosystems are investigated using a pharmacokinetic model. This model illustrates the importance of pollutant flux determinations by measurements and/or by modeling in order to provide a description of the adequate dose entity. It serves as a mechanistic base for the present discussion of flux-based versus concentration-based air quality guidelines. Consequently, the results obtained from chamber experiments can only be transferred to ambient conditions, if the function relating fumigation concentrations to absorbed fluxes is established. Adequate dose-response relationships for airborne pollutants and plant/soil systems presuppose a combination of flux measurements, free-air exposure systems and Soil-Vegetation-Atmosphere Transfer models. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：375 / 380

页数：6

共 11 条

[1] Description, assessment and meaning of vertical fluxes of matter within ecotopes: A systematic consideration [J].