title: Investigation and Evaluation of Children's Blood Lead Levels around a Lead Battery Factory and Influencing Factors.
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.
authors.affiliation: Department of Occupational Disease Prevention, Jiangsu Provincial Center for Disease Prevention and Control, Nanjing 210009, China. zhangfeng0401@163.com.
authors.forename: Feng
authors.initials: F
authors.lastname: Zhang
authors.affiliation: Jiangyin Municipal Center for Disease Prevention and Control, Wuxi 214434, China. liuyangcl@126.com.
authors.forename: Yang
authors.initials: Y
authors.lastname: Liu
authors.affiliation: Department of Occupational Disease Prevention, Jiangsu Provincial Center for Disease Prevention and Control, Nanjing 210009, China. zhang-hd@263.net.
authors.forename: Hengdong
authors.initials: H
authors.lastname: Zhang
authors.affiliation: Department of Occupational Disease Prevention, Jiangsu Provincial Center for Disease Prevention and Control, Nanjing 210009, China. banyh@jscdc.cn.
authors.forename: Yonghong
authors.initials: Y
authors.lastname: Ban
authors.affiliation: Department of Occupational Disease Prevention, Jiangsu Provincial Center for Disease Prevention and Control, Nanjing 210009, China. wjf737@163.com.
authors.forename: Jianfeng
authors.initials: J
authors.lastname: Wang
authors.affiliation: Department of Occupational Disease Prevention, Jiangsu Provincial Center for Disease Prevention and Control, Nanjing 210009, China. liujiandoc@sina.com.
authors.forename: Jian
authors.initials: J
authors.lastname: Liu
authors.affiliation: Department of Occupational Disease Prevention, Jiangsu Provincial Center for Disease Prevention and Control, Nanjing 210009, China. zlxzy0666@sina.com.
authors.forename: Lixing
authors.initials: L
authors.lastname: Zhong
authors.affiliation: Jiangyin Municipal Center for Disease Prevention and Control, Wuxi 214434, China. cxw321523@sina.com.
authors.forename: Xianwen
authors.initials: X
authors.lastname: Chen
authors.affiliation: Department of Occupational Disease Prevention, Jiangsu Provincial Center for Disease Prevention and Control, Nanjing 210009, China. zhubl@jscdc.cn.
authors.forename: Baoli
authors.initials: B
authors.lastname: Zhu
mesh_terms: D000293:Adolescent; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D002681:China; D011211:Electric Power Supplies; D004781:Environmental Exposure / Q000032:analysis*; D004787:Environmental Pollution / Q000032:analysis*; D005260:Female; D006798:Housing; D006801:Humans; D007221:Industry; D007223:Infant; D007231:Infant, Newborn; D007854:Lead / Q000097:blood*; D007855:Lead Poisoning / Q000097:blood; D008297:Male; D018515:Plant Leaves / Q000737:chemistry; D012111:Residence Characteristics; D012307:Risk Factors; D012737:Sex Factors; D012987:Soil / Q000737:chemistry; D014867:Water / Q000737:chemistry
chemical_list: D012987:Soil; D014867:Water; D007854:Lead
keywords: blood lead level; children; lead battery recycling plan