Monitoring and Risk Assessment of Pesticide Residues on Stalk and Stem Vegetables Marketed in Incheon Metropolitan Area

Park, Byungkyu; Jung, Seung-Hye; Kwon, Sung-Hee; Yeo, Eun-Yeong; Lee, Han-Jung; Seo, Soon-Jae; Joo, Kwang-Sig; Heo, Myung Je

doi:10.13103/jfhs.2020.35.4.365

Cited by 10 publications

(2 citation statements)

References 13 publications

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“…However, the other pesticides sprayed by UAVs were not detected, and there was no evidence of drifted pesticides, as the residue of two pesticides did not decrease as the distance increased from the sprayed area 32 . Furthermore, azoxystrobin is commonly used in farm products such as chili pepper 50 , and etofenprox is frequently detected in both herbal fruits and stalk and stem vegetables 51 , 52 . Therefore, it can be concluded that the five cases that exceeded the MRL were not due to the drift of airborne pesticides but rather the presence of pesticides that were already sprayed before the UAV spraying.…”

Section: Resultsmentioning

confidence: 99%

Monitoring and risk analysis of residual pesticides drifted by unmanned aerial spraying

Kim

Yuan

Kim

et al. 2023

Sci Rep

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This study aimed to investigate the residual characteristics of pesticides drifted by unmanned aerial spray according to buffer strip, windbreak, and morphological characteristics of non-target crops, suggest prevention for drift reduction, and finally conduct a risk analysis on pesticides exceeding the maximum residue limit (MRL) or uniform level (0.01 mg/kg) of the positive list system (PLS). Non-target crops were collected around the aerial sprayed area (paddy rice) in Boryeong, Seocheon, and Pyeongtaek after UAV spray. When pesticides were detected in more than three samples, Duncan’s multiple range test was performed. In cases where pesticides were detected in only two samples, an independent sample t-test was conducted (p < 0.05). The drift rate of pesticides tends to decrease by up to 100% as the buffer distance from aerial sprayed area increases or when a windbreak, such as maize, is present between two locations. Thus, the reduction of drifted pesticides could be effective if both factors were applied near the UAV spray area. Moreover, the residue of drifted pesticides was found to be the highest in leafy vegetables such as perilla leaves or leaf and stem vegetables such as Welsh onion, followed by fruit vegetables and cucurbits, owing to the morphological characteristics of crops. Therefore, selecting pulse or cereal such as soybean or maize as a farm product near the UAV spray area can be considered to minimize the drift. For pesticides that exceed the MRL or PLS uniform level, %acceptable dietary intake is 0–0.81% with no risk. Additionally, employing pesticides approved for both paddy rice and farm products in UAV spraying can effectively minimize instances where MRL or PLS are exceeded. Therefore, this study aims to provide farmers with effective guidelines for mitigating drift. Furthermore, we strive to promote stable and uninterrupted food production while facilitating the utilization of agricultural technologies such as UAV spraying to address labor shortages and ensure sustainable food security.

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Section: Resultsmentioning

confidence: 99%

Monitoring and risk analysis of residual pesticides drifted by unmanned aerial spraying

Kim

Yuan

Kim

et al. 2023

Sci Rep

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“…또한 n-hexane으로 분배하여 ethyl acetate/n-hexane으로 정제 하였을 경우 수박 중 pyridalyl의 회수율은 90.0~90.5%이었다 [23]. 또한 dichloromethane으로 분배하여 acetone/n-hexane으로 정제하였을 때, 대파 중 pyridalyl의 회수율은 94.3~95.2% 이었다 [24]. 본 연구에서의 분석방법과 회수율이 높거나 비슷 하게 나타났으며, 농촌진흥청 고시 제2022-4호의 작물잔류성 시험의 기준 및 방법에서 요구하는 회수율 70~120% 범위와 분석오차 10% 이내를 만족하였다.…”

Section: 회수율 시험unclassified

The Residual Characteristic of Chromafenozide and Pyridalyl in Kale

Sun¹,

Hwang²,

Jeong³

et al. 2022

Korean Journal of Environmental Agriculture

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BACKGROUND: It is a very important task to block distribution of the agricultural products contaminated with pesticides in advance to protect consumers from residual pesticides among the agricultural products. Therefore, this study was performed to determine residual characteristics of pesticides in time-dependent manner and present scientific evidences for pre-harvest residue limit (PHRL) setting. METHODS AND RESULTS:The tested pesticides, chromafenozide and pyridalyl were sprayed onto the kale twice (seven day intervals) and then the plant samples were collected at 0 (after 3 hours), 1, 2, 3, 5, 7, and 10 days after the last spraying. Residual concentration of chromafenozide in kale decreased with 74.9% (of decreased fraction, field 1) and 85.3% (field 2) and pyridalyl decreased with 81.2% (field 1) and 85.8% (field 2), calculated by comparisons of the concentrations at 0 day and 10 days. Also biological half-lives of chromafenozide in kale were 5.6 day (field 1) and 3.4 day (field 2), and those of pyridalyl were 4.3 day (field 1) and 3.5 day (field 2). CONCLUSION(S): If the residues of chromafenozide and pyridalyl in kale from 10 days before harvest are less than 37.6 mg/kg and 58.9 mg/kg, respectively, it is expected that safe kale below MRL can be supplied on the pre-harvest day.

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Health risk associated with pesticide residues in vegetables from Incheon region of Korea

Park

Jung

Kwon

et al. 2022

Environ Sci Pollut Res

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Monitoring and Risk Assessment of Pesticide Residues on Stalk and Stem Vegetables Marketed in Incheon Metropolitan Area

Cited by 10 publications

References 13 publications

Monitoring and risk analysis of residual pesticides drifted by unmanned aerial spraying

Monitoring and risk analysis of residual pesticides drifted by unmanned aerial spraying

The Residual Characteristic of Chromafenozide and Pyridalyl in Kale

Health risk associated with pesticide residues in vegetables from Incheon region of Korea

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