Do US ambient air lead levels have a significant impact on childhood blood lead levels: results of a national study.
| Autor: | Brink LL; Department of Epidemiology, University of Pittsburgh Graduate School of Public Health, 130 DeSoto Street, Pittsburgh, PA 15261, USA., Talbott EO, Sharma RK, Marsh GM, Wu WC, Rager JR, Strosnider HM |
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| Jazyk: | angličtina |
| Zdroj: | Journal of environmental and public health [J Environ Public Health] 2013; Vol. 2013, pp. 278042. Date of Electronic Publication: 2013 Aug 01. |
| DOI: | 10.1155/2013/278042 |
| Abstrakt: | Introduction: Although lead paint and leaded gasoline have not been used in the US for thirty years, thousands of US children continue to have blood lead levels (BLLs) of concern. Methods: We investigated the potential association of modeled air lead levels and BLLs ≥ 10 μ g/dL using a large CDC database with BLLs on children aged 0-3 years. Percent of children with BLLs ≥ 10 μ g/dL (2000-2007) by county and proportion of pre-50 housing and SES variables were merged with the US EPA's National Air Toxics Assessment (NATA) modeled air lead data. Results: The proportion with BLL ≥ 10 μ g/dL was 1.24% in the highest air lead counties, and the proportion with BLL ≥ 10 μ g/dL was 0.36% in the lowest air lead counties, resulting in a crude prevalence ratio of 3.4. Further analysis using multivariate negative binomial regression revealed that NATA lead was a significant predictor of % BLL ≥ 10 μ g/dL after controlling for percent pre-l950 housing, percent rural, and percent black. A geospatial regression revealed that air lead, percent older housing, and poverty were all significant predictors of % BLL ≥ 10 μ g/dL. Conclusions: More emphasis should be given to potential sources of ambient air lead near residential areas. |
| Databáze: | MEDLINE |
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