Residues of Organochlorinated Pesticides in Soil from Tomato Fields, Ngarenanyuki, Tanzania

Kihampa, Charles; Mato, R.R.A.M.; Mohamed, Hussein

doi:10.4314/jasem.v14i3.61462

Cited by 19 publications

(29 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This practice was also reported by Lekei, Ngowi, and London (2014) and Khan, Shabbir, Majid, Naqvi, and Khan (2010) in Arumeru and Pakistan respectively. The practice can cause accumulation of pesticide in soil and water sources as it was detected in a sample of irrigation water in Ngarenanyuki ward in Meru district (Kihampa et al, 2010b). Some pesticides' active ingredients might not be able to decompose in the soils or water hence can be the cause for pesticide residues in tomatoes.…”

Section: Improper Pesticide Disposal Practicesmentioning

confidence: 97%

See 1 more Smart Citation

Pesticide exposure from fresh tomatoes and its relationship with pesticide application practices in Meru district

Kariathi

Kassim

Kimanya

2016

Cogent Food & Agriculture

View full text Add to dashboard Cite

Tomato pesticides health risk was assessed in Meru district of Arusha region, one of the key tomato producers in Tanzania. Tomato samples and consumption information were collected from 50 farmers using Food and Drug Administration standards and twice administered twenty-four hour recall questionnaire respectively. Analysis for pesticide residues was done using Gas Chromatography Mass Spectrometry. Dietary pesticide exposure was estimated deterministically by combining pesticide residue levels and tomato consumption levels. Pesticide levels were detected for; permethrin (mean, 5.2899 mg/kg/day), chlorpyrifos (mean, 7.5281 mg/kg/day) and ridomil (mean, 2,854.279 mg/kg/day) in 18% of samples. Health Risk Indices, determined as ratio of estimated daily intake to acceptable daily exposure, for chlorpyrifos, permethrin and ridomil were greater than one. This implies that, lifetime consumption of fresh tomatoes can pose health risk for chlorpyrifos, permethrin and ridomil. Awareness raising on good practices for pesticide application and food safety strengthening are recommended to protect public health against pesticides. This paper has explored pesticide application practices during tomato production and its implication to pesticide residues and the associated risks of dietary pesticide exposure.It has been found that, pesticide residues found in tomatoes are higher than the recommended limits and might cause health risks to consumers. These findings will provide evidence for policy makers to develop strategies of reducing risk to consumers and serve as a basis of training farmers on pesticide use as well as strengthen food safety system in Tanzania. In the long run, safe tomatoes will be consumed and the public will be protected from any fatal health risks associated with pesticides exposure.This will consequently, promote health and nutrition wellbeing of tomato consumers in Tanzania and the nearby countries.

show abstract

Section: Improper Pesticide Disposal Practicesmentioning

confidence: 97%

“…Misuse of these pesticides in vegetable production led to chemical polluting the soil and irrigation water as it was reported in 2010 in Ngarenanyuki and Uwiro estate of Meru district. (Kihampa, Mato, & Mohamed, 2010a, 2010b. Also, improper pesticide application on crops may contribute to accumulation of residues in food materials.…”

Section: Introductionmentioning

confidence: 98%

Pesticide exposure from fresh tomatoes and its relationship with pesticide application practices in Meru district

Kariathi

Kassim

Kimanya

2016

Cogent Food & Agriculture

View full text Add to dashboard Cite

show abstract

“…Similarly, in an investigation carried out by Ssebugerea et al (2010) in southwestern Uganda, on monitoring of insecticide residues in soil from Kihiihi sub-county, Kanungu District, organochlorine insecticides were found (non-detectable [ND] to 59 μg kg −1 ) in the analysed samples. A similar study conducted by Kihampa et al (2010) in Tanzania, to assess the level of organochlorine insecticide residues in soil from tomato fields, revealed that DDT metabolites 4,4-DDD and 4,4-DDE were detected in 53 % of the soil samples analysed. A systematic review of studies done in Ghana, a neighbouring country of Togo, to give an integrated picture of agrochemicals, especially exposure of humans, animals, plants, water, soil, sediment and atmosphere, revealed contamination of the Ghanaian environment (Fianko et al 2011).…”

Section: Methodsmentioning

confidence: 83%

Insecticide residues in soil and water in coastal areas of vegetable production in Togo

Mawussi

Júnior

Dossa³

et al. 2014

Environ Monit Assess

View full text Add to dashboard Cite

Some common organochlorine, organophosphorus and pyrethroid insecticides were analysed in agricultural soil samples (n = 35) and surface water and groundwater samples (n = 25) collected from coastal areas of vegetable production in Togo. Analytical methods included solvent extraction of the insecticide residues and their subsequent quantification using GC-ECD. δ-HCH, heptachlor epoxide, 4,4-DDE, endosulphan (α, β and sulphate), lambda-cyalothrin and chlorpyrifos were found in the soil samples with concentrations that varied from non-detectable (ND) to 26.93 μg kg(-1) dry weight. For water samples, heptachlor epoxide, 2,4-DDD, 4,4-DDD, 4,4-DDE and endosulphan (α, β, and sulphate) were found at contamination levels that varied from ND to 0.116 μg L(-1). The concentration of insecticide residues detected in the water samples was below the limits set by the World Health Organization (WHO) and also by the European Union (EU), with the exception of the concentration of endosulphan sulphate at the Aného site, which was 0.116 μg L(-1).

show abstract

“…In Tanzania, pesticide residues were detected in the samples of irrigation water for which frequency of detection was increased for samples collected downstream in the fields as well as in fresh tomatoes (Kihampa et al, 2010b). Despite the established evidence of intensive use of pesticide in tomato production, detectable amount of residues and proven risk of pesticide dietary exposure, there is limited information on the pesticide residual levels from other food products and their associated health risks to consumers in Tanzania.…”

Section: Health Effects Of Pesticidesmentioning

confidence: 99%

Risk of exposures of pesticide residues from tomato in Tanzania

Kariathi¹,

Kassim²,

Kimanya³

2017

Afr. J. Food Sci.

View full text Add to dashboard Cite

Tomato contributes the highest percent to the fruit and vegetables consumed in Tanzania. Its high consumption is attributed to the presence of bioactive compounds and vitamins known to prevent noncommunicable diseases. Pesticides used to control pests and diseases cause direct accumulation of pesticide residues in food. Consumption of pesticide contaminated tomato increases the risk of pesticide exposure. This review is on types of pesticides used in tomato production, health effects of pesticides, levels of pesticide residues in tomatoes, dietary pesticide exposure, awareness on pesticides effects and preventive measures as well as policies governing pesticide use in Tanzania. Clearly, there is evidence of extensive use of pesticides in tomato production, limited knowledge regarding pesticide use, as well as weak regulatory framework for pesticide use. Importantly, levels of pesticide residues in tomatoes consumed in Tanzania exceed the recommended maximum residual limits. In order to assure pesticide safety of food, there is a need to identify and control farmers' practices which are highly associated with pesticide contamination in tomatoes.

show abstract

Residues of Organochlorinated Pesticides in Soil from Tomato Fields, Ngarenanyuki, Tanzania

Cited by 19 publications

References 8 publications

Pesticide exposure from fresh tomatoes and its relationship with pesticide application practices in Meru district

Pesticide exposure from fresh tomatoes and its relationship with pesticide application practices in Meru district

Insecticide residues in soil and water in coastal areas of vegetable production in Togo

Risk of exposures of pesticide residues from tomato in Tanzania

Contact Info

Product

Resources

About