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Human health risk assessment of organophosphorus pesticides in maize (Zea mays L.) from Yushu, Northeast China
R. Yu, Y. Wang, Z. W. Cui, G. H. Xu, Z. Y. Guan, Y. Yu and J. S. Liu
2018
Source PublicationHuman and Ecological Risk Assessment
Volume24Issue:3Pages:642-652
Other AbstractIn order to investigate organophosphorus pesticides (OPs) concentrations in maize and estimate the health risk to consumers, a total of 55 samples were collected from Yushu, one of the most important maize production areas. The concentrations of the eleven detected OPs in maize were analyzed by gas chromatography coupled with flame photometric detector (GC-FPD). The results showed that OPs concentrations of all maize were not higher than maximum residue limit (MRL), 67.3% of samples below MRL and only in 32.7% of samples was not found OPs. The mean concentrations obtained for the eleven OPs in g kg(-1) were as follows: omethoate (0.8), quinalphos (0.8), phorate (0.7), dimethoate (0.7), parathion-methyl (0.6), isocarbophos (0.6), diazinon (0.5), fenitrothion (0.5), and malathion (0.5), with parathion (0.5) and fenthion (0.3). Phorate (16.4%), dimethoate (16.4%) and quinalphos (16.4%) had the highest frequency in the eleven OPs. 29.1% samples contained two or more kinds of OPs, while 38.2% samples detected one kind of OPs. The target hazard quotients (THQ) values were all less than one and the total acute hazard index (aHI) values for adults and children were 0.051 and 0.121, respectively indicating that consumer may not pose significant chronic and acute health risk through maize.
Document Type期刊论文
Identifierhttp://ir.iga.ac.cn/handle/131322/9180
Collection湿地生态系统管理学科组
Recommended Citation
GB/T 7714
R. Yu, Y. Wang, Z. W. Cui, G. H. Xu, Z. Y. Guan, Y. Yu and J. S. Liu. Human health risk assessment of organophosphorus pesticides in maize (Zea mays L.) from Yushu, Northeast China[J]. Human and Ecological Risk Assessment,2018,24(3):642-652.
APA R. Yu, Y. Wang, Z. W. Cui, G. H. Xu, Z. Y. Guan, Y. Yu and J. S. Liu.(2018).Human health risk assessment of organophosphorus pesticides in maize (Zea mays L.) from Yushu, Northeast China.Human and Ecological Risk Assessment,24(3),642-652.
MLA R. Yu, Y. Wang, Z. W. Cui, G. H. Xu, Z. Y. Guan, Y. Yu and J. S. Liu."Human health risk assessment of organophosphorus pesticides in maize (Zea mays L.) from Yushu, Northeast China".Human and Ecological Risk Assessment 24.3(2018):642-652.
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