Household dust metal levels in the Sydney metropolitan area

被引:135
作者
Chattopadhyay, G [1 ]
Lin, KCP [1 ]
Feitz, AJ [1 ]
机构
[1] Univ New S Wales, Sch Civil & Environm Engn, Ctr Water & Waste Technol, Sydney, NSW 2052, Australia
关键词
lead; household; dust; metal; blood;
D O I
10.1016/S0013-9351(03)00058-6
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Household dust was collected from 82 residential homes within the Sydney metropolitan area. The geometric mean concentrations of metals in the household dust were Cd, 1.9 mug/g; Cr, 64.3 mug/g; Cu, 103 mug/g; Fe, 2740 mug/g; Mn, 54 mug/g; Ni, 15.6 mug/g; Pb, 85.2 mug/g; and Zn, 437 mug/g. Differences in household income level, dwelling type, or the number of occupants were not statistically significant for the majority of metals. The exceptions were higher amounts of Zn (P = 0.033) and Fe (P = 0.047) found in households with only 1-2 residents compared to those with 3-4 or >4 residents, and slightly higher Mn levels (P = 0.033) were found in low-income households (AUD$0-30,000/year). Region was highly significant for Pb levels in Sydney but not significant for other metals. Large variations in Pb levels were found in household dust (16-16,600 mug/g), with the inner-west region associated with significantly higher Pb levels (P<0.001). Comparisons with a study from a decade earlier have revealed that the household dust Pb levels have remained constant despite substantial improvements in air quality in the inner-west area of Sydney. New epidemiological studies are required to determine whether Pb blood levels have also remained unchanged and whether accumulated Pb in household dust represents a significant health risk to children in this region. (C) 2003 Elsevier Science (USA). All rights reserved.
引用
收藏
页码:301 / 307
页数:7
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