The effect of particle size and different extractants on the contents of heavy metals in roadside dusts

W.M. LAU, Ming Hung WONG

Research output: Contribution to journalArticles

7 Citations (Scopus)

Abstract

The roadside dusts collected from three selected sites with marked differences in annual average daily traffic (AADT) values were divided into size classes according to particle size. The total, extractable, and water-soluble metal contents were determined using mixed acid, 1 m NH₄OAc (pH 7.0), and distilled water as extractants. It was found that dust particles with a size smaller than 125 μm belonged to a homogeneous group and did not have a significant difference in metal contents. In using dust as a parameter to indicate the level of Pb contamination, a particle size of 125 μm and the extractable metal contents, using NH₄OAc, should be used. Copyright © 1983 Published by Elsevier Inc.
Original languageEnglish
Pages (from-to)229-242
JournalEnvironmental Research
Volume31
Issue number1
DOIs
Publication statusPublished - 1983

Citation

Lau, W. M., & Wong, M. H. (1983). The effect of particle size and different extractants on the contents of heavy metals in roadside dusts. Environmental Research, 31(1), 229-242. doi: 10.1016/0013-9351(83)90079-8

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