Pesticide residues in three fishing sites in Burkina Faso

IF 2.9 4区 环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES
Firmin SERE, Inoussa COMPAORE, Salam SAWADOGO, Soumaïla KONATE, Saybou SAVADOGO
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Abstract

Pesticides control pests and diseases in crops in order to enhance agricultural productivity; however, they are responsible for damaging aquatic resources. This study aimed to assess pesticide residues in aquatic ecosystems in Burkina Faso. Data were collected in two sampling sites: Bama and Banzon. Thus, in each sampling site, 35 producers were randomly chosen and surveys about pesticide use in the area were performed by distributing questionnaires to each chosen producer in Bama and Banzon. Fifteen (15) water samples were also collected from Bama Pond, Banzon, and the river of Deux Balé. The QuEChERS method was used to evaluate pesticide residue levels in water samples. The results indicated the existence of three classes of pesticides at varying rates: herbicides, insecticides, and fungicides were found to be used by 100%, 100%, and 71.42% of respondents, respectively. Water analysis revealed that the most commonly encountered insecticide was monocrotophos at concentrations of 0.188 µg/l, 0.077 µg/l, and 0.048 µg/l at Banzon, Bama, and Parc of Deux Balé sites, respectively. The highest herbicide level detected in water samples was metazachlor at concentrations of 0.099 µg/l, 0.068 µg/l, and 0.060 µg/l in Parc of Deux Balé, Bama, and Banzon, respectively. The fungicide propiconazole had the highest level detected in water at concentrations of 1.011 µg/l, 0.902 µg/l, and 0.622 µg/l in Bama, Parc of Deux Balé, and Banzon, respectively. These results indicate that the pesticide residue content in water exceeded the maximum residue limit defined by the FAO/WHO Codex Alimentarius.

Abstract Image

布基纳法索三个渔场的农药残留
农药防治作物病虫害,提高农业生产力;然而,它们对破坏水生资源负有责任。本研究旨在评估布基纳法索水生生态系统中的农药残留。数据收集于两个采样点:巴马和班宗。因此,在每个采样点,随机选择35个生产者,并通过向巴马和班宗的每个选定的生产者分发问卷,对该地区的农药使用情况进行调查。还从Bama Pond、Banzon和Deux bal河采集了15个水样。采用QuEChERS法对水样中农药残留水平进行了评价。结果表明,除草剂、杀虫剂和杀菌剂的使用率分别为100%、100%和71.42%。水分析显示,Banzon、Bama和Parc的Deux bal地点最常见的杀虫剂是单氯磷,浓度分别为0.188µg/l、0.077µg/l和0.048µg/l。双巴勒、巴马和班宗的Parc地区水样中除草剂残留量最高,分别为0.099、0.068和0.060µg/l。杀菌剂丙环唑在巴马、双巴勒尔Parc和班松的水中检出浓度最高,分别为1.011、0.902和0.622µg/l。这些结果表明,水中农药残留量超过了粮农组织/世界卫生组织食品法典规定的最大残留限量。
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来源期刊
Environmental Monitoring and Assessment
Environmental Monitoring and Assessment 环境科学-环境科学
CiteScore
4.70
自引率
6.70%
发文量
1000
审稿时长
7.3 months
期刊介绍: Environmental Monitoring and Assessment emphasizes technical developments and data arising from environmental monitoring and assessment, the use of scientific principles in the design of monitoring systems at the local, regional and global scales, and the use of monitoring data in assessing the consequences of natural resource management actions and pollution risks to man and the environment.
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