江苏省某市农村饮用水源中多环芳烃类物质水平  

Polycyclic Aromatic Hydrocarbons Levels in Drinking Water Sources in Rural Areas in a City of Jiangsu Province

作　　者：张芹[1] 胡伟[1] 吴轩[2] 潘恩春[1] 许秋瑾[3] 梁存珍[4] 何源[1] 王闯[1] 

机构地区：[1]淮安市疾病预防控制中心慢性病科,江苏淮安223001 [2]徐州医学院预防医学系,江苏徐州221004 [3]中国环境科学研究院科学技术处,北京100012 [4]北京石油化工学院环境工程系,北京102617

出　　处：《环境与职业医学》2016年第7期691-694,716,共5页Journal of Environmental and Occupational Medicine

基　　金：国家环保公益性行业科研专项(编号:200909054);江苏省预防医学基金(编号:Y201019);淮安市"533英才工程"(编号:89号)

摘　　要：[目的]了解江苏省淮安市农村肿瘤高发区饮用水源中多环芳烃类物质的水平。[方法]选择淮安市盱眙、金湖、楚州三县(区)14个乡镇28个村,在2010年丰、枯水期分别采集地表水、浅层地下水、深层地下水共159份水样,进行多环芳烃类物质的测定,并分析其与当地人群上消化道肿瘤死亡率的相关性。[结果]多环芳烃类物质总质量浓度(以下简称"浓度")为(2 700.09±5 756.08)ng/L,丰水期高于枯水期[(4 914.68±7 247.71)ng/L,(219.74±147.80)ng/L;t=5.95,P=0.00],从高到低依次为地表水、浅层地下水及深层地下水,差异有统计学意义(F=6.15,P=0.00);三个县(区)多环芳烃浓度差异有统计学意义(F=17.40,P=0.00)。根据我国国家标准GB 5749—2006《生活饮用水卫生标准》,多环芳烃类物质总超标率为26.42%;丰水期为50.00%,枯水期无超标情况。丰水期3种水源超标率,以地表水为最高,其次为浅层地下水,深层地下水最低(χ2=7.75,P=0.02);丰水期三个县(区)超标率不同(χ2=46.80,P=0.00)。相关分析显示,饮用水中多环芳烃物质浓度与上消化道肿瘤死亡率均无相关(P>0.05)。[结论]淮安市农村肿瘤高发区饮用水源中多环芳烃类物质浓度较高,没有发现与上消化道肿瘤死亡率相关。[ Objective ] To investigate the levels of polycyclic aromatic hydrocarbons （PAHs） in sources of drinking water in rural areas with high cancer incidence in Huai＇an City of Jiangsu Province. [ Methods ] A total of 28 villages were selected from 14 towns in Xuyi County, Jinhu County, and Chuzhou District in Huai＇an in 2010. Samples （n=159） of surface water, shallow groundwater, and deep groundwater were collected during wet season and dry season for detecting PAHs. The relationship between PAHs concentrations in samples and upper gastrointestinal cancer mortality of local residents was analyzed. [ Results ] The mean concentration of PAHs was （2 700.09 ± 5 756.08） ng/L, and it was higher in wet season than in dry season [（4 914.68 ± 7 247.71）ng/L, （219.74 ± 147.80）ng/L; t=5.95, P=0.00]. The concentration was highest in surface water, followed by shallow groundwater and deep groundwater, with statistical differences （F=6.15, P=0.00）. Besides, the difference in PAHs concentrations was significant among three areas （F=17.40, P=0.00）. According to the Drinking Water Health Standards （GB 5749-2006）, the rate of sample with disqualified PAHs level was 26.42%. Specifically, in wet season the rate was 50.00%, while in dry season all samples were qualified in terms of PAHs level. In wet season, the disqualification rate was highest in surface water samples, followed by shallow groundwater and deep groundwater （X^2=7.75,P=0.02）. The difference in disqualification rate was significant among three areas （X^2=-46.80, P=0.00）. No statistical correlation was found between PAHs level and upper gastrointestinal cancer mortality （P〉 0.05）. [ Conclusion ] Higher PAHs levels are detected in drinking water sources in rural areas with high cancer incidence of Huai＇an City. The findings do not indicate a correlation between PAHs and upper gastrointestinal cancer mortality.

关 键 词：饮用水源 多环芳烃类物质 上消化道肿瘤 死亡率 农村 江苏省 

分 类 号：R12[医药卫生—环境卫生学] R821.71[医药卫生—公共卫生与预防医学]