A Survey of Arsenic Level in Tube-Wells in Bam Province (Burkina Faso)

Abstract

Groundwater is a main source of water supply for populations in Burkina Faso where there is a serious problem for drinking water access. However, water quality has not been always followed regularly. Recent studies showed that more than 50% of drillings in Yatenga province (north of Burkina Faso) have an arsenic concentration above the recommended WHO requirement. Preliminaries studies conducted in Bam (Center North of Burkina Faso) showed high arsenic level in certain localities. This work presents for the first time data on a large scale evaluation that had been performed in all the localities of Bam province in other to have a better assessment of contamination scale. A total of 707 drilling water samples have been selected randomly in 9 communes and analysed for the arsenic level using atomic absorption spectrometry with hydride generation. The results showed that 11% of drillings have an arsenic concentration above the recommended WHO requirements with Rouko commune having the highest rate of high arsenic level (22%).

Physicochemical properties and potential use of six mango varieties from Burkina Faso

“…The weights of mango fruit components ( (1988) for Amélie, Brooks, Keitt and Springfield varieties. On the other hand, these values were higher than those measured in the same varieties coming from the same locality (Banfora) (Somé et al, 2014).…”

“…were not significantly different (p<0.05). Other studies performed in Burkina Faso found that Amélie had the highest β-carotene content among the six mango varieties (Somé et al, 2014). In Chinese mango varieties, β-carotene contents ranged from 2.57 to 6.14 mg/100 g pulp (Liu et al, 2013).…”

“…In addition to the high agricultural potential of mango, the pulp of this fruit has a high nutritional value. Indeed, it is an excellent source of β-carotene (provitamin A), vitamin C, carbohydrates, fibers, phenolic compounds and minerals (Robles-Sanchez et al, 2009;Ma et al, 2011;Liu et al, 2013;Somé et al, 2014). Levels of these compounds are significantly different among varieties and are dependent on agronomic, climatic and environmental conditions.…”

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“…Molybdenum blue can also be used for the detection of arsenate. The reduction of arsenomolybdate produces the colour change and can be noticed at 870 nm wavelength (Some et al 2014). A positive association between Arsenic level in drinking water and hair samples of female respondents has also been studied (Abbas and Cheema, 2014).…”