气候变化领域集成服务门户(CCPortal): Pollution indices of selected metals in tea (Camellia sinensis L.) growing soils of the Upper Assam region divulge a non-trifling menace of National Highway

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DOI	10.1016/j.scitotenv.2024.170737
	Pollution indices of selected metals in tea (Camellia sinensis L.) growing soils of the Upper Assam region divulge a non-trifling menace of National Highway
	Gogoi, Bidyot Bikash; Yeasin, Md; Paul, Ranjit Kumar; Deka, Diganta; Malakar, Harisadhan; Saikia, Jiban; Rahman, Feroze Hasan; Maiti, C. S.; Sarkar, Animesh; Handique, Jyotirekha G.; Kanrar, Bappaditya; Singh, A. K.; Karak, Tanmoy
发表日期	2024
ISSN	0048-9697
EISSN	1879-1026
起始页码	920
卷号	920
英文摘要	The study investigated the influence of a National Highway (NH) traversing tea estates (TEs) on heavy metal (HM) contamination in the top soils of Upper Assam, India. The dispersion and accumulation of six HMs, viz. cadmium (Cd), copper (Cu), iron (Fe), manganese (Mn), nickel (Ni), and zinc (Zn), within tea -growing soils were assessed using diverse indices: contamination factor (CF), degree of contamination (DC), enrichment factor (EF), geo-accumulation index (Igeo), modified degree of contamination (MDC), Nemerow pollution index (PINemerow), pollution load index (PLI), potential ecological risk factor (Eir), and potential ecological risk index (RI). The order of HM prevalence was Fe > Mn > Zn > Ni > Cu > Cd. Elevated Cd levels near the NH prompted immediate attention, while Cd and Zn showed moderate pollution in CF, EF, and RI. The remaining metals posed minimal individual risk (E-r(i)< 40), resulting in an overall contamination range of nil to shallow, signifying slight contamination from the studied metals. From MDC values for investigated metals, it was found to be zero to very low degree of contamination at all locations except the vicinity of NH. Soil pollution, as determined by PLI, indicated unpolluted soils in both districts, yet PINemerow values indicated slight pollution. The statistical analysis revealed that there is a significant decrease in most of the indices of HM as the distance from NH increases. The application of multivariate statistical techniques namely Principal Component Analysis and Cluster Analysis showed the presence of three distinct homogenous groups of distances based on different indices. This investigation underscores NH -associated anthropogenic effects on TE soil quality due to HM deposition, warranting proactive mitigation measures.
英文关键词	Heavy metals; National Highway; Pollution indices; Potential ecological risk index; Soil; Tea Estates
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:001200656800001
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/303627
作者单位	Dibrugarh University; Indian Council of Agricultural Research (ICAR); ICAR - Indian Agricultural Statistics Research Institute; Indian Council of Agricultural Research (ICAR); ICAR - National Bureau of Soil Survey & Land Use Planning; Nagaland University; Nagaland University
推荐引用方式 GB/T 7714	Gogoi, Bidyot Bikash,Yeasin, Md,Paul, Ranjit Kumar,et al. Pollution indices of selected metals in tea (Camellia sinensis L.) growing soils of the Upper Assam region divulge a non-trifling menace of National Highway[J],2024,920.
APA	Gogoi, Bidyot Bikash.,Yeasin, Md.,Paul, Ranjit Kumar.,Deka, Diganta.,Malakar, Harisadhan.,...&Karak, Tanmoy.(2024).Pollution indices of selected metals in tea (Camellia sinensis L.) growing soils of the Upper Assam region divulge a non-trifling menace of National Highway.SCIENCE OF THE TOTAL ENVIRONMENT,920.
MLA	Gogoi, Bidyot Bikash,et al."Pollution indices of selected metals in tea (Camellia sinensis L.) growing soils of the Upper Assam region divulge a non-trifling menace of National Highway".SCIENCE OF THE TOTAL ENVIRONMENT 920(2024).