Blood lead level of children and influence factors of lead pollution in Wuhu

Objective To investigate the blood lead level of 3～5 years old children and influence factors of lead pollution in Wuhu, provide evidence for scientific prevention. Methods 296 blood samples from children in 5 kindergartens (located in three urban areas, a industrial area and a suburb area) in Wuhu were collected. Inductively coupled plasma-mass spectrometry (ICP-MS) waire employed to determine blood lead level after microwave digestion for sample preparation and questionnaire survey was also performed. Data were analyzed by SPSS software. Results Mean blood lead level was 78.5μg/L among 3～5 years old children in Wuhu. The blood lead level of 8.8% children was lower than 50 μg/L and that of 18.6% children was equal or more than 100 μg/L. The blood lead level of 41.1% children in Shi Cheng kindergarten was equal or more than 100 μg/L. Mean blood lead level in 5 kindergartens ( 92.23 μg/L～ 56.01 μg/L). Meanblood lead of boys ( 82.30 μg/L) was higher than that of girls ( 74.21 μg/L). Conclusions There was a significant difference on mean blood lead level of children in Wuhu was middle level in China. The mean blood lead level of children in industrial area, city center and traffic main line were higher than that of else areas.