Behavior of pesticide residues in agricultural soil and adjacent River Kuywa sediment and water samples from Nzoia sugarcane belt in Kenya

Muendo, Boniface M.; Lalah, Joseph O.; Getenga, Zachary

doi:10.1007/s10669-012-9407-4

Cited by 23 publications

(12 citation statements)

References 30 publications

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“…Studies have shown high levels of organochlorine pesticides in water, soil and sediments in Nyando River tributary of the Kenyan's Lake Victoria [21,22]. Also some studies indicate the presence of organochlorine pesticides in Kunywa River which passes through the Nzoia sugar company and drains its water to River Nzoia and then to Lake Victoria [23]. In Kenya most pesticide pollution cases go undetected, unreported and unanalyzed.…”

Section: Introductionmentioning

confidence: 99%

Organochlorine Pesticides Residues in Water and Sediment from Rusinga Island, Lake Victoria, Kenya

Macharia¹,

Abongo²,

Wandiga³

et al. 2016

IOSR

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This study was carried out to investigate the organochlorine pesticide residue level in representative sites in Rusinga Island of Lake Victoria, Kenya. Sediment and water samples from five sites along the shores of Rusinga Island in Lake Victoria were collected and analysed for selected organochlorine pesticides (OCP) using gas chromatography equipped with electron capture detector and confirmed using GC/MS. The pesticides targeted were p,p'-DDT, γ-HCH, α-HCH, β-HCH, δ-HCH, aldrin, dieldrin, heptachlor, heptachlor epoxide, p,p'-DDE, p,p'-DDD, endrin, endrin, aldehyde, endosulfan sulfate, methoxychlor and endosulfan. The samples were collected seasonally between the months of September 2012 to May 2013. The residue levels of organochlorine pesticides in water samples during dry season ranged between BDL to 9.84±1.20µg/L. The levels in wet season ranged between below detection limit (BDL) to 15.53±0.20 µg/L. Organochlorine pesticide detected in sediment during dry season ranged between BDL to 32.91 ± 3.84. Wet season the levels ranged between below detection limit (BDL) to 24.84±2.65 µg/Kg. The present result shows that organochlorines pesticides are still detected in our environment which can negatively affect our environment. This study provides baseline data on the levels of OCP residues in sediment and water from Lake Victoria. This will inform policy makers on the quality of water of Lake Victoria Basin as well as supplement the country's studies as an obligation for all parties to the Stockholm Convention on POPs.

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Section: Introductionmentioning

confidence: 99%

Organochlorine Pesticides Residues in Water and Sediment from Rusinga Island, Lake Victoria, Kenya

Macharia¹,

Abongo²,

Wandiga³

et al. 2016

IOSR

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“…In Kenya (Nzoia sugarcane belt) high current and historical use of pesticides/herbicides (e.g. DDT, aldrin, dieldrin, and endrin), resulted in some cases to concentration levels exceeding the EU limit requirements for drinking water, being thus a potential risk to humans and cattle if untreated [110]. Finally, vinasse (the final by-product of ethanol production) has been shown to have negative impacts on water quality if released untreated [106,247,248].…”

Section: Water Quantity and Qualitymentioning

confidence: 99%

Biofuels in sub-Sahara Africa: Drivers, impacts and priority policy areas

Gasparatos

Maltitz

Johnson

et al. 2015

Renewable and Sustainable Energy Reviews

109

111

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“…Many studies have been done on hexazinone alone or in combination, use of cultivation methods (Judice et al, 2008) to control sugarcane weeds (Fadayomi, 1988;Rainbolt, 2007;Jones and Griffin, 2008), its sorption, leaching of the soil surface (Bicachos et al, 2010, Kodesov et al, 2011, The impact of hexazinone on microorganisms (Estok et al, 1989;Ngigi et al, 2011), and its toxicity on cold-blooded organisms (Mam et al, 2011) were studied. The role of microorganisms in hexazinone degradation (Mostafa and Helling, 2003), environmental pollution by hexazinone (Muendo et al, 2012, Liq et al, 2001, as well as some depollution measures by cultivation techniques by microbial bioreactors (Hunter and Shaner, 2012) under anaerobic conditions (Wang et al, 2009) were considered.…”

Section: Introductionmentioning

confidence: 99%

Untitled

2016

IJAPR

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A study of herbicidal activity of hexazinone 750 g/kg for reducing weeds such as Vernonia cinerea and Cyperus sp. and its secondary effects on soil agrochemical properties was carried out in the sugarcane fields at Bérégadougou in Burkina Faso. The biological efficacy of herbicides was evaluated by counting and weighing the dry biomass of weeds using a sampling square of 0.25 m² placed on four tufts diagonally on the 4 lines of the useful plot. The biological efficiency coefficients of hexazinone at 480 g/ha ranged from -125.00 to 100.00%, while at high doses of 800, 960 and 1440 g/ha, it ranged from 37.33 to 100%. The soil nitrogen nitrate and available phosphorus contents were evaluated with a spectrophotometer. The available potassium contents in hexazinone treatments were not different from those of manual weeding during the maturity stage. On the opposite, those of nitrate nitrogen decreased by 24.97 to 37.40% compared to the manual weeding. All these factors provided hexazinone 1440 g/ha a yield surplus of 20.42% compared to the untreated control, an extractable sugar and sucrose contents equivalent to manual weeding. Hexazinone did not disturb at the studied doses, the dynamic evolution of soil agrochemical components.

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Behavior of pesticide residues in agricultural soil and adjacent River Kuywa sediment and water samples from Nzoia sugarcane belt in Kenya

Cited by 23 publications

References 30 publications

Organochlorine Pesticides Residues in Water and Sediment from Rusinga Island, Lake Victoria, Kenya

Organochlorine Pesticides Residues in Water and Sediment from Rusinga Island, Lake Victoria, Kenya

Biofuels in sub-Sahara Africa: Drivers, impacts and priority policy areas

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