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• W4300484407 endingPage "924" @default.
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• W4300484407 abstract "Pawara area is a mining district in the eastern region of Cameroon. Mining in the area is generally artisanal and semi-mechanized, practiced by the local miners and immigrants from neighboring African countries and China. The lack of strict regulations and control of mining activities permits the miners to use illegal substances, especially Hg in gold separation. These expose the area to toxic and heavy metals pollution. This study highlights the source of heavy metals concentration in the Pawara soils and the potential adverse effects of Hg on gold separation to the environment and health. Three mining sites and one control site were investigated, namely Site A, Site B and Site C. The control Site 0 (background) is an area where no mining and agricultural activities have taken place. Soil samples were collected at depth of 20 cm, with six from each site (24 samples). Samples were analyzed for Al, Cd, Cr, Cu, Fe, Hg, Pb, Cd and Zn content using atomic absorption spectrophotometry in a graphite furnace. The metals, except for Fe, show high values for all three sites exceeding the background levels in the soils. Hg shows the highest concentration on Site A with a value of 1590 mg kg−1. Pb is highest on Site B with a concentration of 12,274 mg kg−1. The contamination degree was assessed with the help of contamination indices (Igeo—index of geo-accumulation; PLI—pollution load index; RI—potential ecological risk; Eri—ecological risk; Pi—single pollution index; CF—contamination factor) and all parameters show a high degree of contamination on all three sites compared to the control site. Hg, Pb, Cd, Cr and Cu as single pollutants show the highest ecological risk on Site A and Site B where intense mining is taking place. The absence of industrial and large-scale agricultural activities in the Pawara area, the nonexistence of contaminants on the control site and the presence of contaminants on Site C where farming is high and mining is low jointly show that the discharge of mine wastes onto the soils and stream channels are the main source of contaminants and potential pollutants of the Pawara ecological environment." @default.
• W4300484407 created "2022-10-03" @default.
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• W4300484407 date "2022-08-20" @default.
• W4300484407 modified "2023-10-18" @default.
• W4300484407 title "Heavy Metal Contamination and Ecological Risk Assessment in Soils of the Pawara Gold Mining Area, Eastern Cameroon" @default.
• W4300484407 cites W1963630651 @default.
• W4300484407 cites W1968451765 @default.
• W4300484407 cites W1972568665 @default.
• W4300484407 cites W1974285157 @default.
• W4300484407 cites W1974534948 @default.
• W4300484407 cites W1975541521 @default.
• W4300484407 cites W1975742108 @default.
• W4300484407 cites W1977448563 @default.
• W4300484407 cites W1978148474 @default.
• W4300484407 cites W1981352656 @default.
• W4300484407 cites W1984423436 @default.
• W4300484407 cites W1985595379 @default.
• W4300484407 cites W1988036611 @default.
• W4300484407 cites W1998514849 @default.
• W4300484407 cites W2005496844 @default.
• W4300484407 cites W2019758284 @default.
• W4300484407 cites W2020744939 @default.
• W4300484407 cites W2022356297 @default.
• W4300484407 cites W2026659537 @default.
• W4300484407 cites W2029923666 @default.
• W4300484407 cites W2032439815 @default.
• W4300484407 cites W2032513580 @default.
• W4300484407 cites W2047702669 @default.
• W4300484407 cites W2050596486 @default.
• W4300484407 cites W2051146670 @default.
• W4300484407 cites W2053959192 @default.
• W4300484407 cites W2063069237 @default.
• W4300484407 cites W2064965413 @default.
• W4300484407 cites W2074203340 @default.
• W4300484407 cites W2076393718 @default.
• W4300484407 cites W2081781496 @default.
• W4300484407 cites W2085567225 @default.
• W4300484407 cites W2088959050 @default.
• W4300484407 cites W2092403282 @default.
• W4300484407 cites W2092413450 @default.
• W4300484407 cites W2092720542 @default.
• W4300484407 cites W2092775761 @default.
• W4300484407 cites W2092866871 @default.
• W4300484407 cites W2121236195 @default.
• W4300484407 cites W2126164548 @default.
• W4300484407 cites W2128754823 @default.
• W4300484407 cites W2129660567 @default.
• W4300484407 cites W2133107978 @default.
• W4300484407 cites W2144450498 @default.
• W4300484407 cites W2148027865 @default.
• W4300484407 cites W2157209961 @default.
• W4300484407 cites W2158070844 @default.
• W4300484407 cites W2159485678 @default.
• W4300484407 cites W2163685349 @default.
• W4300484407 cites W2166240011 @default.
• W4300484407 cites W2195128359 @default.
• W4300484407 cites W2237583790 @default.
• W4300484407 cites W2253030359 @default.
• W4300484407 cites W2343396626 @default.
• W4300484407 cites W2532741968 @default.
• W4300484407 cites W2606639325 @default.
• W4300484407 cites W2616455310 @default.
• W4300484407 cites W2738424532 @default.
• W4300484407 cites W2753449839 @default.
• W4300484407 cites W2762949391 @default.
• W4300484407 cites W2774244308 @default.
• W4300484407 cites W2785702269 @default.
• W4300484407 cites W2796378037 @default.
• W4300484407 cites W2811202341 @default.
• W4300484407 cites W2890730135 @default.
• W4300484407 cites W2939775657 @default.
• W4300484407 cites W2964073341 @default.
• W4300484407 cites W2964436026 @default.
• W4300484407 cites W2966802552 @default.
• W4300484407 cites W3005892770 @default.
• W4300484407 cites W3036685965 @default.
• W4300484407 cites W3080708625 @default.
• W4300484407 cites W3081097923 @default.
• W4300484407 cites W3135458757 @default.
• W4300484407 cites W3163698080 @default.
• W4300484407 cites W3214814626 @default.
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• W4300484407 doi "https://doi.org/10.3390/earth3030053" @default.
• W4300484407 hasPublicationYear "2022" @default.
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