摘要
实地调查采样、结合GIS技术进行室内综合分析 ,系统研究了沈阳市大气、土壤、灰尘中铅污染对儿童健康的影响 .结果表明 ,沈阳市环境中铅暴露普遍 ,铅污染较严重 ,铅浓度空间分异大 ,已形成 4个高浓度中心 .并且大气铅浓度有明显的日、季和年变化规律 .沈阳市环境铅污染已经影响了儿童健康 ,0～ 1 0岁儿童 (ZPP >2 3μmol/L)血铅范围是 1 0 98～ 5 1 1 2 μg/L ,平均值是 1 35 5 9μg/L ,4 0 %的儿童血铅水平超标 .儿童血铅与大气铅相关性最大 ,其次是土壤和灰尘 .实行无铅汽油之后 ,大气铅污染有了很大改善 ,但是土壤和灰尘中的铅容易以扬尘的方式再次进入大气 ,存在潜在风险 ,应引起有关部门足够的重视 .
In this thesis, based on field sampling and indoor integrated analysis with GIS technology, the impact of lead pollution in the atmosphere, dust, soil on the children was explored systemically. Results showed that, Lead exposure in environment was widely distributed and Lead pollution was serious in Shenyang city. The spatial variations of Lead,with four high content centers in the soil, dust and atmosphere, were distinct in all the environmental media. Moreover, there were daily, seasonal and annual variations in the atmosphere. The impact of lead pollution in environment on children health was serious in Shenyang city. The blood lead content of the children (ZPP>2.3μmol/L) with the age of 0～10 ranged from 10.98 to 511.2μg/L,and the average of 135.59μg/L. The blood content of 40% children was beyond the normal standard. And correlative degree of lead contents between in blood and in atmosphere was highest, secondly in soil, and last in dust. With the implication of non-lead gasoline the lead content in the atmosphere had declined greatly. Along with the flying dust, the lead in the soil and dust was likely to entering into the atmosphere to bring out potential pollution risk.
出处
《环境科学》
EI
CAS
CSCD
北大核心
2003年第5期17-22,共6页
Environmental Science
基金
国家自然科学基金资助项目 (40 1710 89)
中加合作碳循环研究项目 (Z90 8)
关键词
环境毒理
环境铅污染
健康效应
儿童铅中毒
沈阳市
environmental toxicology
environmental lead pollution
health effect
lead intoxication of children
Shenyang city
