Potentially toxic elements concentrations and human health risk assessment of food crops in Bajaur Agency, Pakistan

被引：0
作者：
Zia Ullah
Alia Naz
Umar Saddique
Abdullah Khan
Wisal Shah
Said Muhammad
机构：
[1] University of Haripur,Department of Environmental Sciences
[2] Abdul Wali Khan University,Department of Chemistry
[3] COMSATS University,Department of Earth Sciences
来源：
Environmental Earth Sciences | 2017年 / 76卷
关键词：
Average daily intake; Hazard quotient; Vegetable and cereal crops; Children; Adults;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
This study investigates the potentially toxic elements (PTEs) concentrations in various food crops along the Bajaur Agency. For this purpose, food crop samples were collected and analyzed for PTEs including cadmium (Cd), nickel (Ni), chromium (Cr), copper (Cu), cobalt (Co), zinc (Zn) and lead (Pb) by atomic absorption spectrometer (PerkinElmer, AAS-PEA-700). Among the food crops, Spinacia oleracea L. showed the highest concentrations for Ni, Cr, Cu, Co and Pb, Brassica juncea (L.) Czern. for Cd, and Zea mays L. for Pb. The concentrations of the Cd, Cr and Ni in food crops have surpassed the safe limits set by Food and Agriculture Organization/World Health Organization. Determined PTEs concentrations in food crops were evaluated for the risk assessment through single and collectively PTEs and food crop using the daily intake of metals (DIM) and hazard quotient (HQ). Results revealed that through food crops intake the highest values of DIM and HQ were observed for Zn and Cd, respectively. Children showed the highest HQ values, compared to adults for Triticum aestivum L. consumption. High HQ values can cause hazardous health problem in exposed populations; therefore, this study recommends regular monitoring of PTEs concentrations in food crops.
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