Organophosphorus Pesticides Residues in Fish Samples from the River Nile Tributaries in Egypt

Malhat, Farag; Nasr, I. N.

doi:10.1007/s00128-011-0419-4

Cited by 45 publications

(30 citation statements)

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“…The mean chlorpyrifos residue levels recorded in this study were far lower than the range of not detected (ND)-1545.1 µg/L reported by Essumang et al (2009) in water samples from Lagoons in Ghana. In addition, the total mean value of chlorpyrifos (0.04 µg/L) recorded in this study was in line with the mean value of 0.04153 µg/L reported by Malhat and Nasr (2013) in water samples from the Nile River tributaries, in Egypt. On the other hand, this findings is contrary to the results of Botwe et al (2012) which recorded no chlorpyrifos residue in 18 hand dug wells in and around vegetable plantations in the Ofinso District of Ghana.…”

Section: Organophosphorus Pesticide Residues In Water Samplessupporting

confidence: 91%

Organophosphorus pesticide residues in soils and drinking water sources from cocoa producing areas in Ghana

et al. 2016

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Background: Pests and diseases are recognised as major factors responsible for the decline in cocoa yield in Ghana. This has resulted in an increased use of pesticides to increase productivity. The regular application and indiscriminate use of chemicals have been associated with unintended environmental and human health consequence. The objective of this study was to determine levels of 13 organophosphorus pesticide residues in soils and drinking water sources in and around cocoa farms in Brong Ahafo region of Ghana. Methods:Organophosphorus pesticide residues were determined by the use of a high resolution Varian CP-3800 Gas Chromatograph equipped with pulse flame photometric detector (PFPD) in 32 soils and 64 drinking water samples from 16 cocoa farms in the Dormaa West District of Ghana.Results: Four organophosphorus residues were detected in the soil and water samples at varying concentrations. The organophosphorus residues detected in soil samples were chlorpyrifos (0.01-0.04 mg/kg), profenofos (0.02-0.04 mg/kg) and pirimiphos-methyl (0.01-0.04 mg/kg) while the organophosphorus residues recorded in the water samples were chlorpyrifos (0.01-0.05 µg/L), diazinon (0.01-0.04 µg/L) and pirimiphos-methyl (0.01-0.03 µg/L). The concentrations of organophosphorus pesticide residues in the soil samples analysed from the various sites were generally below and within US MRLs for agricultural soils. However, mean concentrations of chlorpyrifos and pirimiphos-methyl recorded at Nkrankwanta (S1) were found to be above their respective US MRLs for agricultural soils. The trends of organophosphorus pesticide residues in the water samples analysed from the various distances to cocoa farms decreased with increase in distance to cocoa farm (ranking; 0-15 > 16-30 > above 30 m). All organophosphorus pesticide residues recorded in the water samples from the various sites within the various distances were below and within their respective WHO MRLs for drinking water except chlorpyrifos at Diabaa (S2) and Kwakuanya (S4) at distance 16-30 m and diazinon at Kwakuanya (S4) at a distance 0-15 m which exceeded their WHO MRLs. There were no significant (p > 0.05) sites differences in mean values of pesticide residues detected in soils and water samples. Conclusions:The presence of organophosphorus in the samples analysed was an indication of the use of the pesticides by cocoa farmers in the study area to control pest and diseases. The pesticide residues in the soil poses danger to soil organisms as well as contaminate surrounding water bodies through runoff and leaching. In addition, there is the likelihood of translocation of these residues from the soil into the cocoa beans and other crops (like vegetables that are commonly intercropped with cocoa) through the root system, thereby posing health risks to consumers. Chlorpyrifos and diazinon concentrations in drinking water exceeded their respective WHO MRLs at some sampled sites and may pose health hazard to farmers' household and the communities.

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Section: Organophosphorus Pesticide Residues In Water Samplessupporting

confidence: 91%

Organophosphorus pesticide residues in soils and drinking water sources from cocoa producing areas in Ghana

et al. 2016

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“…The use of this water could be a potential source of pollution with heavy metals and/or pesticide residues particularly in the absence of water quality testing, connected ponds and no water filtration at the farm (Mansour and Sidky, 2002). It was found that concentration of pollutants in drainage water and fish organs was higher than the permissible limits (El-Sayed et al, 2011;Authman et al, 2013) and that the concentrations of some pesticide residues were higher in water drains than other sources (El-Kabbany et al, 2000;Mansour, 2009;Malhat and Nasr, 2013). However, results from analysis of tilapia samples from fish farms, indicated that the level of contamination of farmed tilapia from Kafrelsheikh fish farms with heavy metals and pesticides residues was below national and international maximum permissible limit (Eltholth et al, submitted for publication).…”

Section: Farmed Tilapia Production and Its Constraintsmentioning

confidence: 95%

Characterisation of production, marketing and consumption patterns of farmed tilapia in the Nile Delta of Egypt

et al. 2015

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a b s t r a c tEgypt has one of the world's largest aquaculture sectors which makes a significant contribution to income, employment creation and food security. However, there are very limited data available on the farmed tilapia value chain. The aim of this study therefore was to characterise production, marketing and consumption patterns of farmed tilapia in the Nile Delta of Egypt. A cross sectional study was conducted to collect data from tilapia producers (100), transporters (32), retailers (100), fish fry shops (20) and households (300) in three case study communities (fish producing, peri-urban and rural community). We conducted structured questionnaire interviews and participatory assessments for producers and consumers. Focus group discussions with mothers were also held to collect data for the availability, sources and consumption patterns of tilapia.Results showed that, more than half of producers were small scale, having a farm size of 10 feddan or less (1 feddan = 4200 m 2 ). The main water supply for almost all farms was agricultural drain water, a potential source of contamination with chemical and biological hazards. The main production constraints were reported to be feed prices, water quality and availability, land rent, fuel and energy sources and environmental conditions. The farmed tilapia value chain was short with some value added in the form of marketing fresh and live fish as well as selling tilapia in fried or grilled form. The majority of produced tilapia was transported to retail sale and sold to consumers as fresh, while only a small proportion was processed by cleaning, grilling or frying. A lack of hygiene during transportation and marketing of farmed tilapia was found that could be potential sources for post-harvesting contamination. The availability and frequency of tilapia consumption were higher in the community in the production areas than in other communities. In non-producing areas, tilapia may be available in the market once a week during the village market day. Potential areas for further research in order to improve safety, quality and production of farmed tilapia were identified.

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“…Out of 40 types of banned pesticides listed by the Malaysian Ministry of Agriculture, some of them are chlorinated pesticides namely alachlor, aldrin, Pesticide residues such as organochlorines can exist in our aquatic environment through precipitation, runoff and leaching from nearby agriculture field. Mobility of this residue can be influenced by their chemical characteristics such as low water solubility, low biodegradation rate, and strong affinity for particulate matter [3]. Detrimental effect on non-targeted organisms, degradation of environmental quality and threat as endocrine disruptors are few ubiquitous examples due to this type of pesticides [4].…”

Section: Introductionmentioning

confidence: 99%

Organochlorine Pesticides Residue Level in Surface Water of Cameron Highlands, Malaysia

2015

IJEE

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A B S T R A C TThe occurrence of organochlorine pesticide (OCPs) residues in surface water of Bertam and Terla River, Cameron Highlands was investigated. Monitoring work was carried out starting from August to December 2014 consisted of six stations. Nine of organochlorine residues were detected throughout that period of study, namely aldrin, heptachlor epoxide, endosulfan II, endosulfan sulfate, methoxychlor, endrin ketone, 4,4'-DDE, beta and gamma HCH. The level concentration of pollutant were found to be in the order endrin ketone (mean 0.317 µgL ). The highest total organochlorine residue is detected at 0.955 µgL -1 . The highest concentrations for compounds namely methoxychlor (0.06 µgL -1 ), endrin ketone (0.63 µgL -1 ) and 4,4'-DDE (0.018 µgL -1 ) were found at station S2 (Kuala Terla). An analysis in tap water (station S5; Brinchang town) also found some compounds namely aldrin, endosulfan II, endrin ketone and 4,4'-DDE to be within the range of 0.008 to 0.18 µgL -1 . To mitigate this present status from continuing to become worse, improving water quality for water supply or reuse for agriculture purpose in Cameron Highlands must be put in high priority among all stakeholders.

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Organophosphorus Pesticides Residues in Fish Samples from the River Nile Tributaries in Egypt

Cited by 45 publications

References 4 publications

Organophosphorus pesticide residues in soils and drinking water sources from cocoa producing areas in Ghana

Organophosphorus pesticide residues in soils and drinking water sources from cocoa producing areas in Ghana

Characterisation of production, marketing and consumption patterns of farmed tilapia in the Nile Delta of Egypt

Organochlorine Pesticides Residue Level in Surface Water of Cameron Highlands, Malaysia

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