Aging, bioavailability, and overestimation of risk from environmental pollutants

被引:1085
作者
Alexander, M [1 ]
机构
[1] Cornell Univ, Inst Comparat & Environm Toxicol, Ithaca, NY 14853 USA
[2] Cornell Univ, Dept Soil & Crop Sci, Ithaca, NY 14853 USA
关键词
D O I
10.1021/es001069+
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
As they persist, or age, in soil, organic compounds become progressively less available for uptake by organisms, for exerting toxic effects, and for biodegradation and bioremediation by microorganisms. This declining bioavailability is not reflected by currently used methods for the chemical analysis of soils for determining concentrations of organic pollutants. As a result, such methods overestimate exposure, and thus risk, from toxic chemicals in contaminated sites.
引用
收藏
页码:4259 / 4265
页数:7
相关论文
共 93 条
[1]  
ABDELRAHMAN MS, 1997, CONTAMINATED SOILS, V2, P117
[2]   FACTORS INFLUENCING THE RATE OF POLYCHLORINATED BIPHENYL DECHLORINATION IN HUDSON RIVER SEDIMENTS [J].
ABRAMOWICZ, DA ;
BRENNAN, MJ ;
VANDORT, HM ;
GALLAGHER, EL .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1993, 27 (06) :1125-1131
[3]  
ALEXANDER M, 1997, ENV ACCEPTABLE ENDPO, P43
[4]  
Alexander RR, 1999, ENVIRON TOXICOL CHEM, V18, P1140, DOI [10.1002/etc.5620180610, 10.1897/1551-5028(1999)018&lt
[5]  
1140:GOTPAH&gt
[6]  
2.3.CO
[7]  
2]
[8]   Role of microstructural properties in the time dependent sorption/desorption behavior of 1,2-dichloroethane on humic substances [J].
Aochi, YO ;
Farmer, WJ .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1997, 31 (09) :2520-2526
[9]   EFFECT OF SURFACTANTS AT LOW CONCENTRATIONS ON THE DESORPTION AND BIODEGRADATION OF SORBED AROMATIC-COMPOUNDS IN SOIL [J].
ARONSTEIN, BN ;
CALVILLO, YM ;
ALEXANDER, M .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1991, 25 (10) :1728-1731
[10]   Microbial dechlorination of historically present and freshly spiked chlorinated dioxins and diversity of dioxin-dechlorinating populations [J].
Barkovskii, AL ;
Adriaens, P .
APPLIED AND ENVIRONMENTAL MICROBIOLOGY, 1996, 62 (12) :4556-4562