| 珠三角地区稻田土壤和谷粒中邻苯二甲酸酯(PAEs)的分布特征及人体健康暴露风险 |
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| 引用本文： | 鲁磊安,陈学斌,赵海明,莫测辉,李慧,李彦文,蔡全英.珠三角地区稻田土壤和谷粒中邻苯二甲酸酯(PAEs)的分布特征及人体健康暴露风险[J].农业环境科学学报,2016,35(7):1242-1248. |
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| 作者姓名： | 鲁磊安 陈学斌 赵海明 莫测辉 李慧 李彦文 蔡全英 |
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| 作者单位： | 1. 暨南大学环境学院,广东省高校水土环境毒害性污染物防治与生物修复重点实验室,广州510632;2. 暨南大学环境学院,广东省高校水土环境毒害性污染物防治与生物修复重点实验室,广州510632;暨南大学生态学系,广州510632 |
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| 基金项目： | 国家自然科学基金项目（41273113,41573087) |
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| 摘 要： | 选择珠三角地区(东莞、惠州、广州、番禺)4个水稻种植区,采集土壤(30个)和水稻谷粒(37个)样品,通过超声提取进行样品前处理,利用气相色谱-质谱仪(GC-MS)分析9种邻苯二甲酸酯(PAEs)化合物的含量,研究PAEs的污染特征和人体健康暴露风险。结果表明,4个地区稻田土壤中PAEs总含量(∑PAEs)为3.25~8.05 mg·kg-1(平均为5.25 mg·kg-1),水稻谷粒的∑PAEs为1.77~4.13 mg·kg-1(平均为2.93 mg·kg-1),两者均以东莞的平均值最高,分别为(6.26±1.45)mg·kg-1和(3.13±0.71)mg·kg-1。土壤和水稻谷粒中PAEs均以邻苯二甲酸正二丁酯(DBP)、邻苯二甲酸双(2-乙基己基)酯(DEHP)和邻苯二甲酸二异丁酯(DIBP)为主,三者的累计含量占∑PAEs的85%以上。水稻谷粒对PAEs化合物的生物富集系数在0.37~1.27之间,部分DBP、DIBP、DEHP的大于1。大米和谷壳中∑PAEs分别为1.33~3.22 mg·kg-1(平均为2.17 mg·kg-1)和0.81~2.61 mg·kg-1(平均为1.43 mg·kg-1)。若人体食用这些大米,成人和儿童对DBP和DEHP的日均摄入量均小于10μg·kg-1bw·d-1,低于美国环保局推荐的日允许摄入量(DBP:100μg·kg-1bw·d-1,DEHP:20μg·kg-1bw·d-1),健康暴露风险较小。但人体通过食用大米的长期低剂量暴露不容忽视。
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| 关 键 词： | 邻苯二甲酸酯 稻田土壤 谷粒 人体健康暴露风险 珠三角 |
| 收稿时间： | 2016/3/10 0:00:00 |
Distribution of phthalic acid esters (PAEs) in paddy soil and grains of rice in the Pearl River Delta region and the health risk assessment |
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| LU Lei-an,CHEN Xue-bin,ZHAO Hai-ming,MO Ce-hui,LI Hui,LI Yan-wen and CAI Quan-ying.Distribution of phthalic acid esters (PAEs) in paddy soil and grains of rice in the Pearl River Delta region and the health risk assessment[J].Journal of Agro-Environment Science( J. Agro-Environ. Sci.),2016,35(7):1242-1248. |
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| Authors: | LU Lei-an CHEN Xue-bin ZHAO Hai-ming MO Ce-hui LI Hui LI Yan-wen and CAI Quan-ying |
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| Institution: | Key Laboratory of Water/Soil Toxic Pollutants Control and Bioremediation of Guangdong Higher Education Institutions, School of Environment, Jinan University, Guangzhou 510632, China,Key Laboratory of Water/Soil Toxic Pollutants Control and Bioremediation of Guangdong Higher Education Institutions, School of Environment, Jinan University, Guangzhou 510632, China,Key Laboratory of Water/Soil Toxic Pollutants Control and Bioremediation of Guangdong Higher Education Institutions, School of Environment, Jinan University, Guangzhou 510632, China;Department of Ecology, Jinan University, Guangzhou 510632, China,Key Laboratory of Water/Soil Toxic Pollutants Control and Bioremediation of Guangdong Higher Education Institutions, School of Environment, Jinan University, Guangzhou 510632, China,Key Laboratory of Water/Soil Toxic Pollutants Control and Bioremediation of Guangdong Higher Education Institutions, School of Environment, Jinan University, Guangzhou 510632, China,Key Laboratory of Water/Soil Toxic Pollutants Control and Bioremediation of Guangdong Higher Education Institutions, School of Environment, Jinan University, Guangzhou 510632, China and Key Laboratory of Water/Soil Toxic Pollutants Control and Bioremediation of Guangdong Higher Education Institutions, School of Environment, Jinan University, Guangzhou 510632, China |
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| Abstract: | |
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| Keywords: | phthalic acid esters paddy soil grains health risk assessment Pearl River Delta |
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