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Int. J. Environ. Res. Public Health 2016, 13(6), 541; doi:10.3390/ijerph13060541

Investigation and Evaluation of Children’s Blood Lead Levels around a Lead Battery Factory and Influencing Factors

1
Department of Occupational Disease Prevention, Jiangsu Provincial Center for Disease Prevention and Control, Nanjing 210009, China
2
Jiangyin Municipal Center for Disease Prevention and Control, Wuxi 214434, China
These authors contributed equally to this work.
*
Author to whom correspondence should be addressed.
Academic Editor: Paul B. Tchounwou
Received: 17 February 2016 / Revised: 20 May 2016 / Accepted: 24 May 2016 / Published: 28 May 2016
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Abstract

Lead pollution incidents have occurred frequently in mainland China, which has caused many lead poisoning incidents. This paper took a battery recycling factory as the subject, and focused on measuring the blood lead levels of environmental samples and all the children living around the factory, and analyzed the relationship between them. We collected blood samples from the surrounding residential area, as well as soil, water, vegetables. The atomic absorption method was applied to measure the lead content in these samples. The basic information of the generation procedure, operation type, habit and personal protect equipment was collected by an occupational hygiene investigation. Blood lead levels in 43.12% of the subjects exceeded 100 μg/L. The 50th and the 95th percentiles were 89 μg/L and 232 μg/L for blood lead levels in children, respectively, and the geometric mean was 94 μg/L. Children were stratified into groups by age, gender, parents’ occupation, distance and direction from the recycling plant. The difference of blood lead levels between groups was significant (p < 0.05). Four risk factors for elevated blood lead levels were found by logistic regression analysis, including younger age, male, shorter distance from the recycling plant, and parents with at least one working in the recycling plant. The rate of excess lead concentration in water was 6.25%, 6.06% in soil and 44.44% in leaf vegetables, which were all higher than the Chinese environment standards. The shorter the distance to the factory, the higher the value of BLL and lead levels in vegetable and environment samples. The lead level in the environmental samples was higher downwind of the recycling plant. View Full-Text
Keywords: children; blood lead level; lead battery recycling plan children; blood lead level; lead battery recycling plan
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Zhang, F.; Liu, Y.; Zhang, H.; Ban, Y.; Wang, J.; Liu, J.; Zhong, L.; Chen, X.; Zhu, B. Investigation and Evaluation of Children’s Blood Lead Levels around a Lead Battery Factory and Influencing Factors. Int. J. Environ. Res. Public Health 2016, 13, 541.

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