摘要
目的了解大气PM2.5污染状况及与孕妇血铅水平的关系。方法于2011年1—12月用PM2.5颗粒物采样器测定哈尔滨市道外区(污染区)和道里区(对照区)大气PM2.5浓度,以石墨炉原子吸收光谱法测定该地区169名孕产妇血铅值,应用多元逐步回归方法评价大气PM2.5与孕妇血铅水平之间的关系。结果调查地区的非采暖期大气PM2.5浓度为(64.66±5.8)μg/m3,采暖期为(88.01±10.1)μg/m3,超标率为89.5%和100.0%。污染区大气PM2.5浓度([85.5±7.3)μg/m3]高于对照区([61.5±5.0)μg/m3],差异有统计学意义(P<0.01)。孕妇血铅中位数为54.3μg/L。多元逐步回归分析显示,用彩色餐具盛装食物、居住在大气PM2.5浓度较高的地区可能与孕妇血铅水平的升高有关(P<0.05)。结论本次调查的孕妇血铅水平升高可能与大气PM2.5污染有关。
Objective To study air PM2.5 pollution in Harbin and the relationship between PM2.5 pollution ann lead exposure of local pregnant women. Methods PM2.5 particles were sampled and determined in Daowai district and Daoli district of Harbin in January-December 2011, graphite furnace atomic absorption spectrometry was used to determine the blood lead levels of 169 pregnant women, the stepwise multiple regression method was used to evaluate the relationship between PM2.5 concentration and the blood lead levels of pregnant women. Results In Harbin, the atmospheric PM2.5 concentration in non- heating period was （64.66 ± 5.8）μg/m3, and that of heating period was （88.01±10.1） μg/m3, which exceeded the national standard limit by 1.8 and 2.5 times, the exceeding rate in heating period was 100%, and that in non-heating period was 89.5%. The PM2.5 concentration in Daowai district [ （85.5±7.3） μg/m3 ]was higher than that [（61.5±5.0） μg/m3] in Daoli district. Multiple stepwise regression analysis showed a significant correlation between the atmospheric PM2.5 concentration and blood lead level of pregnant women [（45.51±2.23） μg/L]. Conclusions The PM2.5 concentration may be related with higher blood lead level in pregnant women.
出处
《环境与健康杂志》
CAS
CSCD
北大核心
2013年第4期338-340,共3页
Journal of Environment and Health
基金
黑龙江省教育厅科学技术研究项目(12531333)
关键词
PM2
5
空气污染
血铅
孕妇
PM2.5
Air pollution
Blood lead
Pregnant women
