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Analysis of Heavy Metal Contents in Vegetables of Lishui Suburb and the Health Hazard(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2013年12期
Page:
21-24
Research Field:
Publishing date:

Info

Title:
Analysis of Heavy Metal Contents in Vegetables of Lishui Suburb and the Health Hazard
Author(s):
LIANG Qiao-ling; YANG Hui; ZHAO Li
College of Ecology，Lishui university，Lishui，Zhejiang 323000
Keywords:
soil; vegetable; heavy metal; pollution index; target hazard quotient
PACS:
S 63；X 53
DOI:
-
Abstract:
The contents of Lead (Pb)，Cadmium (Cd)，Cromium Cr) and Arsenic (As) in 30 samples of soil and 60 samples of vegetables at the vegetable farm base around Shiniu Bridge，Shuige Industrial District，Suburb of Lishui City were studied.The health hazard arose from them were also analyzed.The method of target hazard quotient (THQ) was used to evaluate the potential health risks after ingestion of the vegetables by local residents.The THQ values were compared between adults and children.The results showed that the average content of Cd in the soil was 0.450 mg/kg，which was 1.5 times of national standard.In leaf vegetables，the average content of Pb was 0.214 mg/kg，which was 1.07 times of that in non-public hazard vegetables.The average content of Cd was 0.058 mg/kg，which was 1.16 times of that in non-public hazard vegetables;in non-leaf vegetables，the average content of Pb was 0.258 mg/kg，which was 1.29 times of that in non-public hazard vegetables.After ingestion of the vegetables by adults and children，the THQ values of Pb were 0.318 and 0.418 respectively，and the THQ values of Cd were 0.226 and 0.297 respectively.Therefore，the contents of Pb and Cd in the sample vegetables were above the standard，the requirement of non-public hazard didn’t meet.However，after ingestion of the vegetables，the THQ values of Pb and Cd were less than 1，which indicated the health hazard was not obvious.

References:

[1]吕晓男,孟赐福,麻万诸.重金属与土壤环境质量及食物安全问题研究[J].中国生态农业学报,2007,15(2):197-200.
[2]王虹艳.丽水市城市土壤中重金属和磷的空间分布、磁学监测和污染风险评价[D].杭州：浙江大学,2010. [3]李广超.环境检测实习[M].北京:化学工业出版社,2002:105-108.
[4]汪雅谷,卢善玲,吴其乐,等.上海地区绿色食品蔬菜中若干污染物容许限量的初步探讨[J].上海农业学报,1997,13(3):16-20.
[5]USEPA.Risk based concentration table[EB/OL].http//www.epa.gov/reg3hwmd/risk/human/index.2000.[6]Bennett D H,Kastenberg W E M K，One T E.A multin edia multiple pathway risk assessment of atrazine the impact of age iffierentiated exposure including joint uncertainty and variability[J].Reliab Eng Systsaf,1999,63:185-198.
[7]马瑾,万洪富,杨国义,等.东莞市蔬菜重金属污染状况研究[J].生态环境,2006,15(2):319-322.
[8]郑娜,王起超,郑冬梅.基于THQ的锌冶炼厂周围人群食用蔬菜的健康风险分析[J].环境科学学报,2007,27(4):672-678.

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Last Update: 2014-08-19