Comparison of predicted aquatic risks of pesticides used under different rice-farming strategies in the Mekong Delta, Vietnam

Stadlinger, Nadja; Berg, Håkan; Brink, Paul J. Van den; Tâm, Nguyễn Thành; Gunnarsson, Jonas S.

doi:10.1007/s11356-016-7991-4

Cited by 38 publications

(19 citation statements)

References 38 publications

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“…The concentration of diazinon in rice in the present study was dramatically lower than diazinon in rice farming (58.4 ng g −1 ) and rice-fish farming paddies (117 ng g −1 ) from Can Tho, Vietnam [39]. The average of diazinon in rice samples (31.9 mg/kg) from Anzali International Wetland basin, Iran [40] was far higher than the present study.…”

Section: Presence Of Opps In Paddy Rice and Soilcontrasting

confidence: 75%

Presence and Health Risks of Obsolete and Emerging Pesticides in Paddy Rice and Soil from Thailand and China

Khammanee

Qiu

Kungskulniti

et al. 2020

IJERPH

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Organochlorine (OCPs) and organophosphorus pesticides (OPPs) have been intensively applied in rice paddy field farming to control pest infestation and increase the yield. In this study, we investigated the presence of organochlorine and organophosphorus pesticides in paddy rice and soil from rice plantations in Thailand and China. According to concentration and distribution of OCPs, the most abundant OCPs residues in rice and soil from Thailand and China were dichlorodiphenyltrichloroethane and hexachlorocyclohexanes. The OPPs of methidathion, carbophenothion, chlorpyrifos, and diazinon were common to Thailand and China in both types of samples. The detection frequency of multiple types of these pesticides was greater than 50% of total samples. The relative concentration of some OPPs residues in rice and soil from Thailand and China were significantly different from each other (p < 0.0083), whereas, no significant difference was observed for the relative concentration of OCPs residues in rice and soil from both countries, except for HCHs (p < 0.05). Bioaccumulation factors of OCPs between rice and soil samples indicated that OCPs and OPPs in soil could accumulate in rice. The carcinogenic and non- carcinogenic risks of OCPs and OPPs seem to be in the safe range as recommended by the European Union.

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Section: Presence Of Opps In Paddy Rice and Soilcontrasting

confidence: 75%

Presence and Health Risks of Obsolete and Emerging Pesticides in Paddy Rice and Soil from Thailand and China

Khammanee

Qiu

Kungskulniti

et al. 2020

IJERPH

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show abstract

“…These target pesticides were demonstrated that they are more susceptible to alkaline hydrolysis and highly degradable in the neutral to basic conditions [33,34]. They are able to accumulate as existing in natural environment, harm to aquatic organisms and ecosystems or cause negative effects to the environment [35][36][37].…”

Section: Properties Of Wastewater and Target Pesticidesmentioning

confidence: 99%

Treatment efficiency of a combination of alternative technologies in removing pollutants from pesticide containing wastewater

Pham

Phuoc

Nguyen

et al. 2020

Environmental Engineering Research

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Pesticide containing wastewater is concerned due to their toxicity to human health and the environment, and therefore, is attracted much attention by public communities and scientists. This type of wastewater can be treated by conventional treatment methods including physical, chemical, biological methods and so on. Unfortunately, the efficiency of these methods are mostly undesired as expectation because they cannot completely remove toxic organic pollutants from wastewater. In this study, an experiment on laboratory scale model of cold plasma technology, a well-known water treatment method in recent decades, was performed to assess its efficiency on removing pesticide fenobucarb from the wastewater. Furthermore, another experiment on laboratory scale model of the cold plasma combined with coagulation/flocculation and ion exchange process was implemented to assess the efficiency of these combination and each process as well on treatment of pesticide containing wastewater. Experimental results demonstrated that the model of technologies combined was high effective in removing organic pollutants from wastewater. However, the specific efficiency of cold plasma technology in treating wastewater was low. Treatment time, energy supply and wastewater characteristics are the factors which are necessary to be further studied for cold plasma technology application.

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“…Also, pesticides affect non-target organisms in the aquatic and terrestrial ecosystems [6,7,8]. In the wetland agro-ecosystems, pesticides affect nontarget organisms through undesirable exposures to contaminants in water bodies, runoffs, and spray drift [9]. Lately, the chances of pesticide contamination in the Ndop flood plain of Cameroon are very high since crop cultivation has become very intensive to meet the urban food demands.…”

Section: Introductionmentioning

confidence: 99%

Pesticide Use Practices and Effects on the Wetland Biodiversity of Ndop, North West Region of Cameroon

Ncheuveu

Fai

Tchamba

et al. 2021

IJECC

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Aims: The aim of this study was to evaluate farmer’s pesticide use practices and their effects in the wetland of Ndop. Study Design: A cross sectional study was carried out from January to August 2019 in Ndop, North West Region of Cameroon. Methodology: Questionnaires were administered separately to 382 rice and 100 vegetable farmers, and descriptive statistics was used in analyzing the results. Specifically, the Chi-squared statistic was used to determine the nature of the relationship between the variables. Results: The results showed that most of the crop fields (95.6%) lack a buffer zone since most farms were adjacent to water bodies (0 ≥farm ≥1 m). Farmers (100%) washed and rinsed knapsack sprayers in nearby water bodies. A majority of the farmers (71.3%) burnt or threw empty pesticide containers in open fields, water bodies, or nearby bushes. Both rice farmers (83.5%) and vegetable farmers (100%) reported that pesticides kill non-target organisms (fish, frogs, toad, snakes, birds, etc.) resulting into a drastic population decline in the wetland. A majority of the farmers (85.2%) no longer do fishing in the paddy fields because of the frequent fish decline caused by pesticide usage. Clarias gariepinus constituted 56% of the fish species harvested from the paddy fields and a drastic population decline was observed by the farmers. The average fish catch per month was low (12.22 kg ± 7.47 SD) relative to the past when pesticides were not used during cultivation. There was a significant difference between training and environmental awareness of pesticides (X2 = 28.98, p = 0.001). Conclusion: These results indicate an urgent need for a post-pesticide registration management strategy to ensure a sustainable management and conservation of the wetland resources of Ndop.

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Comparison of predicted aquatic risks of pesticides used under different rice-farming strategies in the Mekong Delta, Vietnam

Cited by 38 publications

References 38 publications

Presence and Health Risks of Obsolete and Emerging Pesticides in Paddy Rice and Soil from Thailand and China

Presence and Health Risks of Obsolete and Emerging Pesticides in Paddy Rice and Soil from Thailand and China

Treatment efficiency of a combination of alternative technologies in removing pollutants from pesticide containing wastewater

Pesticide Use Practices and Effects on the Wetland Biodiversity of Ndop, North West Region of Cameroon

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