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首页> 外文期刊>Environment and Pollution >Determination of Five Heavy Metals in White Yam (Dioscorea Rotundata) and Three- Leaved Yam (Dioscorea Dumetorum) from Farms in Khana, Rivers State
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Determination of Five Heavy Metals in White Yam (Dioscorea Rotundata) and Three- Leaved Yam (Dioscorea Dumetorum) from Farms in Khana, Rivers State

机译：河流州卡纳农场白薯（Dioscorea Rotundata）和三叶薯类（Dioscorea Dumetorum）中五种重金属的含量测定

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Background: The Niger Delta Region has experienced various levels of pollutions from industries and oil exploration. Studies have revealed that the ongoing pollution is affecting the quality of agriculture produce from this region. Rivers State is one of the states in the Niger Delta and its farmlands have been affected by oil exploration. This study is aimed at determining the levels of five heavy metals (Cu, Fe, Ni, Pb and Zn) in white yam ( dioscorea rotundata ) and three-leaved yam ( Dioscora dumentorum ) using AAS. Research Methodology: The samples used for this study were harvested from farms in Zaakpon and Kaani in Khana Local Government area of Rivers State, Nigeria. Results: Concentration of Cu in white yam (11.86mg/kg) and three-leaved yam (8.90mg/kg) harvested from Zaakpon were found to be higher than those from Kaani, whereas Fe concentration in white yam (43.20mg/kg) and three-leaved yam (144.0mg/kg) from Kaani were higher than those from Zaakpon. Ni and Pb concentration were also higher in the samples from Zaakpon while Zn concentrations in the samples from the two farmlands were below acceptable limits. The dietary intake rate (DIR) values (mg person -1 day -1 ) were calculated using Parkhurst equation and the following was obtained for Cu (0.044 - 0.124), Fe (0.229 - 1.510), Ni (0.0214 - 0.138), Pb (0.001 - 0.141) and Zn (0.022 - 0.145). Conclusion: From the results obtained, it follows that the continued consumption of these crops harvested from the farms will have adverse effects on the consumers. This calls for close monitoring of the farmlands for heavy metal contamination.
机译：背景：尼日尔三角洲地区遭受了来自工业和石油勘探的各种程度的污染。研究表明，持续的污染正在影响该地区农产品的质量。河流州是尼日尔三角洲的州之一，其农田受到石油勘探的影响。这项研究的目的是使用AAS测定白山药（dioscorea rotundata）和三叶山药（Dioscora dumentorum）中的五种重金属（Cu，Fe，Ni，Pb和Zn）的含量。研究方法：本研究使用的样品是从尼日利亚河流州卡纳地方政府辖区Zaakpon和Kaani的农场中收获的。结果：从Zaakpon收获的白薯和三叶薯中的铜含量分别为11.86mg / kg和8.90mg / kg，高于Kaani，而白薯中的Fe含量为43.20mg / kg。 Kaani的三叶山药（144.0mg / kg）高于Zaakpon。 Zaakpon样品中的Ni和Pb浓度也较高，而两个农田样品中的Zn浓度均低于可接受的限度。使用Parkhurst方程计算饮食摄入率（DIR）值（mg人-1天-1），得出Cu（0.044-0.124），Fe（0.229-1.510），Ni（0.0214-0.138），Pb的值（0.001-0.141）和Zn（0.022- 0.145）。结论：从获得的结果可以看出，从农场收获的这些作物的持续消费将对消费者产生不利影响。这就要求对农田进行重金属污染的密切监测。

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