Blood Lead Dynamics of Lead-Exposed Pregnant Women and Its Effects on Fetus Development

The dynamics of blood lead (Pb-B) and blood zinc protoporphyrin (ZPP-B) of women in early pregnancy and parturient women with lead exposure and the effects on fetus development were investigated. Pb-B of lead-exposed women was high: 0.984 μmol/L (20.38 μg/dl) and ZPP was 84.52μg/dl. Cord blood Pb-B was 0.896 μmol/L(18.56μg/dl)and cord blood ZPP was 69.24μg/dl. In the control group, Pb-B was 0.261μmol/L(5.41μg/dl), ZPP-B, 37.59 μg/dl, cord blood, Pb-B 0.34 μmol/L (7.93 μg/dl), and cord ZPP-B 49.0μg/dl. There was a significant correlation between blood lead and blood ZPP, maternal Pb-B and cord Pb-B, maternal Pb-B and cord ZPP-B. The significance of the consistency of high level Pb-B and the effects on fetus development is discussed.

儿童铅中毒

美国毒物和疾病登记局(ATSDR)送交美国国会一份报告,指出儿童铅接触的后果甚为严重,即使在最低的铅接触水平中,儿童也深受其害。该研究分为三项:①铅接触对儿童健康的长期影响;②全美国儿童中毒的程度”③消除美国儿童铅污染的方法和策略。儿童铅接触的程度按血铅水平(1.2、25、0.96、20、0.72μmol/L、15μg/dl)分类如下:①血铅1.2μmol/L和红细胞原卟淋(EP)增高;②WHO最近在欧洲共同体采用的0.96μmol/L相应值;

国际有害废弃物健康影响会议即将召开

有毒品与疾病登记机构(ATSDR)与Emory大学公共卫生学院和职业与环境病临床协会共同宣布,1993年5月3～6日将在美国亚特兰大召开第一届国际有害废弃物健康影响会议。此次会议的发起者是美国国立坏境卫生科学研究所和环保局。