METAL POLLUTION RELEASE BY ROAD AEROSOLS

被引：9

作者：

LEBRETON, L ^{[1
]}

THEVENOT, DR ^{[1
]}

机构：

[1] UNIV PARIS 12,UFR SCI & TECHNOL,BIOELECTROCHIM & ANAL MILIEU LAB,F-94010 CRETEIL,FRANCE

来源：

ENVIRONMENTAL TECHNOLOGY | 1992年 / 13卷 / 01期

关键词：

D O I：

10.1080/09593339209385126

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Because they are highly contaminated by heavy metals, road aerosols may pollute runoff waters. To estimate the mobility of some toxic metals such as Zn, Pb or Cd, these aerosols have been submited to a range of sequential chemical extraction (chemical speciation) and to laboratory release experiments. Both chemical speciation and reactor experiments show similar metal behaviour. Zn and Cd are extremely mobile (60 % released) while Pb, highly bound to particles, needs a change of ionic strength, pH or the presence of chelating agents (addition of NaCl, pH 4 buffer or N.T.A. respectively) to dissolve significantly.

引用

页码：35 / 44

页数：10

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