|Table of Contents|

Contents and Form of Heavy Metal in PM10 of Different Diameters(PDF)

《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

Issue:
2006年第04期
Page:
87-91
Research Field:
Publishing date:

Info

Title:
Contents and Form of Heavy Metal in PM10 of Different Diameters
Author(s):
DAI Ta-gen1; LUO Ying-hua1; 2; LIANG Kai1; 2
1.School of Geology and Environment Engineering, Central South University, Changsha 410083, Hunan, China; 2. Department of Tourism, Shaoguan University, Shaoguan 512005, Guangdong, China
Keywords:
heavy metal;  mass consistency;  form distribution;  environment activity
PACS:
X132
DOI:
-
Abstract:
The WYX-402A atomic absorption spectrometry and Tessler scheme are used to study contents and activity of Cu, Pb, Zn, Cd, Cr and As in PM10 of different diameters. The results indicate that contents of Cu, Pb, Cd and As increase with the decrease of diameters; contents of Zn and Crincrease with decrease of diameters in despite of the maxi- mum within the diameter range 1.1μm to 2.0μm. The activity of heavy metals is different in PM10, that is, activity of Cu increase with the decrease of diameters, activity of Pb is stable, activity of Zn fall when diameters decrease. The dominant form of Cd is carbonate and oxides and its activity is biggerin fine particles. The dominant form of Cris oxides and residual, and its activity is stable in particles of different size. Soluble, carbonate and oxides are the main form of As, and its activity fall when diameters increase in the stable environment.

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Last Update: 2006-12-20