Heavy metal pollution in roadside urban parks and gardens in Hong Kong

N. F. Y. TAM, W. K. LIU, Ming Hung WONG, Y. S. WONG

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Abstract

An ecological survey was conducted on metal contamination (including Cd, Pb, Ni, Zn, Cu, Mn and Fe) of vegetation (leaf of Bauhina variegata), surface soil (0-1 cm) and dust (from road curbs) collected at 13 urban parks near busy roads (with heavy traffic volume) in Hong Kong. Samples from roadside parks had significantly higher metal contents than the control site (away from automobile traffic). A close correlation was found between traffic volume and metal contents of leaf, soil and dust. Washing of leaf samples reduced the levels of Cu, Mn, Zn and Fe contamination and suggested that the source of heavy metal pollution was mainly due to aerial deposition from motor vehicles. Copyright © 1987 Published by Elsevier B.V.

Original languageEnglish
Pages (from-to)325-328
JournalScience of the Total Environment
Volume59
DOIs
Publication statusPublished - 1987

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Roadsides
Heavy Metals
Heavy metals
garden
Pollution
Metals
heavy metal
pollution
Dust
metal
Contamination
road
dust
Soils
Curbs
Washing
Automobiles
automobile
soil surface
Antennas

Citation

Tam, N. F. Y., Liu, W. K., Wong, M. H., & Wong, Y. S. (1987). Heavy metal pollution in roadside urban parks and gardens in Hong Kong. Science of The Total Environment, 59, 325-328. doi: 10.1016/0048-9697(87)90455-4