滹沱河冲洪积扇深层孔隙水中多环芳烃和酞酸酯的污染水平与饮水健康风险评估

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Abstract In order to investigate the pollution status of polycyclic aromatic hydrocarbons (PAHs) and phthalate esters (PAEs) in the deep shallow pore water of Hutuo River Pluvial Fan, the US EPA priority control PAHs and PAEs in the groundwater of this region were analyzed by gas chromatography-mass spectrometry. The occurrence, distribution characteristics and their potential probabilistic carcinogenic risk through drinking water were also assessed in this present study. The results showed that both PAHs and PAEs could be detected in all the 7deep shallow pore water samples. The concentration of the ∑PAHs was ranged from 34.4 to 598.5ng/L. The percent of the 2~3ring PAHs was accounted about 50%~83%, which indicated that the 2~3ring PAHs was predominated. While the concentration of the ∑PAEs was ranged from 27.6 to 25236.7ng/L and there were three samples that the concentration were reached 20μg/L, and in addition, the DBP and DEHP were the dominant constitutes. As compared to other surveyed groundwater research regions in China, the PAHs pollution level of this research area was closed to the others, however, the PAEs pollution level of this research area was higher than the others. The health risk of drinking groundwater in the study area was evaluated by the recommended method by US EPA. It showed that the cancer risk of PAHs of all the samples were excessed acceptable level (10-6) except G2 sample point. Besides, the cancer risk of G1, G6 and G7 sample were larger than 10-6 for the health risk assessment of PAEs. The results of this study suggested that the quality of groundwater in this research region should be pay enough attention by government.

Key words： Hutuo River groundwater PAHs PAEs pollution distribution health risk assessment

Received: 22 April 2016

PACS:

X821

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	Articles by authors
	GENG Meng-jiao
	CHANG Sheng
	LIU Yan
	WANG Shan-jun
	HAN Xiang-yun

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GENG Meng-jiao,CHANG Sheng,LIU Yan等. Pollution status and health risks of drinking water of the polycyclic aromatic hydrocarbons and phthalate esters in the deep shallow pore water of Hutuo River Pluvial Fan[J]. CHINA ENVIRONMENTAL SCIENCECE, 2016, 36(12): 3824-3830.

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http://manu36.magtech.com.cn/Jweb_zghjkx/EN/ OR http://manu36.magtech.com.cn/Jweb_zghjkx/EN/Y2016/V36/I12/3824

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