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Title: Investigation of the cold condensation of persistent organic pollutants with a global multimedia fate model

Abstract

In this paper, the authors present a new global multimedia fate model that considers the influence of temperature on the environmental transport, degradation, and partitioning of persistent organic pollutants. The model consists of a variable number of latitudinal zones with specific annual temperature courses; each zone contains soil, oceanic surface water, and tropospheric air. The chemicals' degradation rates and Henry's law constants (H) are implemented as functions of temperature and the concentrations in the soil, water, and air compartments of each latitudinal zone are calculated as functions of time. The resulting temporal and spatial concentrations patterns are characterized by persistence and spatial range. Model calculations are carried out for tetrachloromethane, {alpha}-hexachlorocyclohexane ({alpha}-HCH), and murex, and the specific distribution patterns of these three chemicals are discussed. The model results show that the soil and water concentrations of the polar zones are strongly sensitive to changes of the latitudinal gradient of H and of washout ratios, adsorption to aerosol particles, and deposition rates.

Authors:
; ; ;
Publication Date:
Research Org.:
Swiss Federal Inst. of Tech., Zurich (CH)
OSTI Identifier:
20080526
Resource Type:
Journal Article
Journal Name:
Environmental Science and Technology
Additional Journal Information:
Journal Volume: 34; Journal Issue: 9; Other Information: PBD: 1 May 2000; Journal ID: ISSN 0013-936X
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; AIR POLLUTION; ENVIRONMENTAL TRANSPORT; MATHEMATICAL MODELS; CHLORINATED ALIPHATIC HYDROCARBONS; TEMPERATURE DEPENDENCE; ATMOSPHERIC CHEMISTRY

Citation Formats

Scheringer, M., Wegmann, F., Fenner, K., and Hungerbuehler, K. Investigation of the cold condensation of persistent organic pollutants with a global multimedia fate model. United States: N. p., 2000. Web. doi:10.1021/es991085a.
Scheringer, M., Wegmann, F., Fenner, K., & Hungerbuehler, K. Investigation of the cold condensation of persistent organic pollutants with a global multimedia fate model. United States. doi:10.1021/es991085a.
Scheringer, M., Wegmann, F., Fenner, K., and Hungerbuehler, K. Mon . "Investigation of the cold condensation of persistent organic pollutants with a global multimedia fate model". United States. doi:10.1021/es991085a.
@article{osti_20080526,
title = {Investigation of the cold condensation of persistent organic pollutants with a global multimedia fate model},
author = {Scheringer, M. and Wegmann, F. and Fenner, K. and Hungerbuehler, K.},
abstractNote = {In this paper, the authors present a new global multimedia fate model that considers the influence of temperature on the environmental transport, degradation, and partitioning of persistent organic pollutants. The model consists of a variable number of latitudinal zones with specific annual temperature courses; each zone contains soil, oceanic surface water, and tropospheric air. The chemicals' degradation rates and Henry's law constants (H) are implemented as functions of temperature and the concentrations in the soil, water, and air compartments of each latitudinal zone are calculated as functions of time. The resulting temporal and spatial concentrations patterns are characterized by persistence and spatial range. Model calculations are carried out for tetrachloromethane, {alpha}-hexachlorocyclohexane ({alpha}-HCH), and murex, and the specific distribution patterns of these three chemicals are discussed. The model results show that the soil and water concentrations of the polar zones are strongly sensitive to changes of the latitudinal gradient of H and of washout ratios, adsorption to aerosol particles, and deposition rates.},
doi = {10.1021/es991085a},
journal = {Environmental Science and Technology},
issn = {0013-936X},
number = 9,
volume = 34,
place = {United States},
year = {2000},
month = {5}
}