This study examined the spatial distribution of total mercury (THg) and total arsenic (TAs) in water, soil and cassava (Manihot esculenta) (leaves and roots) samples taken from areas in Rwamagasa village in northwestern Tanzania where daily living activities occur in close proximity to extensive artisanal and small scale gold …

Environmental contamination with mercury from artisanal gold mines in Tanzania has been widely reported. People living around mining villages keep domestic animals which are allowed to feed freely ...

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Understanding soil mercury (Hg) accumulation, spatial distribution, and its sources is crucial for effective regulation of Hg emissions. We chose a study area covering approximately 100 km 2 representing one of the rapid growing industrial towns of the Yangtze River Delta (YRD), China, to explore soil Hg accumulation. In surface soil, total …

@article{Sanga2023AccumulationAD, title={Accumulation and distribution of mercury in agricultural soils, food crops and associated health risks: A case study of Shenda Gold mine-Geita Tanzania}, author={Tumikia R. Sanga and Kenneth Kakoma Maseka and Mohanadoss Ponraj and Clavery Tungaraza and Marco E. Mng'ong'o and Eliezer Brown …

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The catchment areas of Lake Victoria in Tanzania are impacted by mercury contamination from small-scale gold mining activities. A preliminary survey of the mercury contamination has indicated in some ... methylation and distribution of mercury species will be evaluated in laboratory experiments and extrapolated to environmental conditions.

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population of Tanzania. Test measurements of mercury vapor in air were car-ried out in Itumbi and Londoni (Table 4). The danger level of mercury in ambient air for working 6 hours in industry is 1 ...

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The Mtera and Kidatu reservoirs are located along the Great Ruaha River drainage basin in the southern central part of the country while the other reservoirs are located within the Pangani River basin in the north eastern part of Tanzania. Fish mercury levels ranged from 5 to 143 μg/kg (mean 40 μg/kg wet weight) in the Mtera Reservoir, …

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A study of gold (Au) mining areas in Tanzania is being undertaken to assess environmental impacts arising from the use of mercury (Hg) in gold extraction. Initial results already indicated the presence of elevated Hg concentrations in environmental samples from the mining areas. The mean Hg concentration in river sediments in 4.19 µg/l. soils within …

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This study examined the spatial distribution of total mercury (THg) and total arsenic (TAs) in water, soil and cassava (Manihot esculenta) (leaves and roots) samples taken from areas in Rwamagasa village in northwestern Tanzania where daily living activities occur in close proximity to extensive artisanal and small scale gold …

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The reserves of Hg in the surface arable soils (0–20 cm) ranged from 6.8 × 10 2 to 4.2 × 10 3 metric tons among the 31 provinces and regions in China. The sum calculated using equation (1) is 4.1 × 10 4 metric tons.. A significant logarithmic correlation between the daily release flux of Hg from soils and the soil Hg concentration was …