Arsenic Levels in the Environment and Foods Around Kisumu, Kenya

Makokha, Anselimo; Kinyanjui, Peter K.; Magoha, Happy Steven; Mghweno, Leonard R.; Nakajugo, Amina; Wekesa, John M.

doi:10.2174/1874829501205010119

Cited by 2 publications

(1 citation statement)

References 11 publications

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“…These methods include inductively coupled plasma mass spectrometry (ICP-MS), inductively coupled plasma atomic emission spectrometry (ICP-AES), graphite furnace atomic absorption spectrometry (GF-AAS), and Hydride generation atomic absorption spectrometry (HG-AAS). HG-AAS has been used to analyze arsenic in water and soil in Kenya [25]. It is commonly used due to its improved detection limit as a result of hydride generator [26].…”

Section: Introductionmentioning

confidence: 99%

Arsenic Contamination in Water from Selected Boreholes in Nairobi City County, Kenya

Kiplangat

Mwangi

Swaleh

et al. 2021

EJCHEM

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Arsenic is a metalloid, which may be found in surface water, ground water, plants and rocks. In high concentrations, its compounds are considered to be genotoxic and carcinogenic. Its levels in drinking water must be regularly monitored and controlled. The objective of study was to determine the concentration of arsenic in water with reference to WHO limits from selected boreholes in Nairobi County, Kenya. Water was randomly sampled from a total of 63 boreholes in five zones (Central, Eastern, Northern, Western and Southern) during dry and wet season. The arsenic was analyzed by Hydride Generation Atomic Absorption Spectrometer (HG-AAS). The results showed that the arsenic content in borehole water during dry season ranged between 0.00455±0.0022 and 0.01007±0.006 and in the range of 0.002057±0.0008 - 0.00744±0.0051 mg/L during the wet season. There was significant difference (P˂0.05) in arsenic content in borehole water samples in Central zone compared to the other zones. During the dry season, arsenic content in water from ten boreholes (16%) and four boreholes (6%) during wet season was found to be above the WHO recommended limit of 0.01 mg/L. The calculated contamination factor for the borehole water ranged from slightly arsenic contaminated in Central zone to very slightly contaminated in the other zones during dry season. During the wet season, the borehole water in all the five zones were very slightly contaminated with arsenic. The pollution index showed that the boreholes in all the five zones during both wet and dry seasons were not polluted with arsenic. Steps should be taken to monitor and treat borehole water for domestic purposes in order to mitigate the effect on human health due to arsenic contamination.

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Section: Introductionmentioning

confidence: 99%

Arsenic Contamination in Water from Selected Boreholes in Nairobi City County, Kenya

Kiplangat

Mwangi

Swaleh

et al. 2021

EJCHEM

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Arsenic Exposure via Contaminated Water and Food Sources

Rehman

Katsoyiannis

Kokkinos

et al. 2022

Water

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Arsenic poisoning constitutes a major threat to humans, causing various health problems. Almost everywhere across the world certain “hotspots” have been detected, putting in danger the local populations, due to the potential consumption of water or food contaminated with elevated concentrations of arsenic. According to the relevant studies, Asia shows the highest percentage of significantly contaminated sites, followed by North America, Europe, Africa, South America and Oceania. The presence of arsenic in ecosystems can originate from several natural or anthropogenic activities. Arsenic can be then gradually accumulated in different food sources, such as vegetables, rice and other crops, but also in seafood, etc., and in water sources (mainly in groundwater, but also to a lesser extent in surface water), potentially used as drinking-water supplies, provoking their contamination and therefore potential health problems to the consumers. This review reports the major areas worldwide that present elevated arsenic concentrations in food and water sources. Furthermore, it also discusses the sources of arsenic contamination at these sites, as well as selected treatment technologies, aiming to remove this pollutant mainly from the contaminated waters and thus the reduction and prevention of population towards arsenic exposure.

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Arsenic Levels in the Environment and Foods Around Kisumu, Kenya

Cited by 2 publications

References 11 publications

Arsenic Contamination in Water from Selected Boreholes in Nairobi City County, Kenya

Arsenic Contamination in Water from Selected Boreholes in Nairobi City County, Kenya

Arsenic Exposure via Contaminated Water and Food Sources

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