Ecological and Human Health Risk Assessment of Heavy Metals by Consuming the Aquatic Plant Species Near an Electronic Waste Open Dumpsite in Thailand

Q3 Environmental Science
Thitima Parkpoom, Somsak Intamat, Uraiwan Phoonaploy, L. Neeratanaphan
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Abstract

Heavy metals from electronic waste (e-waste) accumulate in the environment and can affect human health. The purpose of this study was to determine As, Cd, Cr and Pb concentrations in water, sediment and three species of edible aquatic plants (Ottelia alismoides, Ipomoea aquatic and Marsilea crenata) near an e-waste open dumpsite. Samples were collected from six sampling points surrounding an e-waste open dumpsite and heavy metal concentrations were analyzed by inductively coupled plasma optical emission spectrometry (ICP-OES). Bioaccumulation factors (BAFs), estimated daily intake (EDI), hazard quotient (HQ), hazard index (HI) and carcinogenic risk (CR) were evaluated in the plants. The Pb concentration in the water samples exceeded the quality standard. The order of the heavy metal concentrations in the sediment was Pb>Cr>As >Cd, and these concentrations were within the limits of the quality standard. The order of the heavy metal concentrations in O. alismoides, I. aquatic and M. crenata was Cr>Pb>As>Cd, Pb>Cr>As>Cd and Pb>Cr>As>Cd, respectively. The concentrations of As, Cd, Cr and Pb in O. alismoides and As, Cr and Pb in I. aquatic and M. crenata exceeded the quality standard of food consumption. Most of the BAF values of the heavy metals in O. alismoides were more than one, but in I. aquatic and M. crenata, they were less than one. The order of the EDI values in O. alismoides, I. aquatic and M. crenata was Cr>Pb>As>Cd, Pb>Cr>As>Cd and Cr>As>Pb >Cd, respectively. The HQ values were greater than one for As, Cd and Pb in O. alismoides; Pb in I. aquatic; and As and Pb in M. crenata. The HQ and CR values show that the consumption of edible plants from an e-waste open dumpsite is a human health risk.
泰国某电子垃圾露天垃圾场附近水生植物对重金属生态和人体健康的风险评价
来自电子废物(电子废物)的重金属在环境中积累,并可能影响人类健康。本研究旨在测定某电子垃圾露天垃圾场附近水体、沉积物及3种可食性水生植物(水草、水草和马尾草)中砷、镉、铬和铅的含量。采用电感耦合等离子体发射光谱法(ICP-OES)对电子垃圾露天垃圾场周围的6个采样点进行了重金属浓度分析。对植物的生物积累因子(BAFs)、估计日摄入量(EDI)、危害商(HQ)、危害指数(HI)和致癌风险(CR)进行了评价。水样中铅浓度超标。沉积物中重金属含量顺序为Pb>Cr>As >Cd,均在质量标准范围内。水草、水草和水草的重金属浓度顺序分别为Cr>Pb>As>Cd、Pb>Cr>As>Cd和Pb>Cr>As>Cd。水藻中As、Cd、Cr、Pb含量超标,水藻和绿齿藻中As、Cr、Pb含量超标。在水生水蚤和绿腹水蚤中,重金属BAF值大多大于1,而在水生水蚤和绿腹水蚤中则小于1。绿豆、水草和绿腹草的EDI值依次为Cr>Pb>As>Cd、Pb>Cr>As>Cd和Cr>As>Pb >Cd。As、Cd、Pb的HQ值均大于1;水生植物中的铅;绿藻中的砷和铅。HQ和CR值表明,食用来自露天电子垃圾垃圾场的可食用植物对人体健康有风险。
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来源期刊
Applied Environmental Research
Applied Environmental Research Environmental Science-Environmental Science (all)
CiteScore
2.00
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