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Exposure and risk assessment of insecticide methomyl for applicator during treatment on apple orchard

Journal of the Korean Society for Applied Biological Chemistry volume 55, pages 95–100 (2012)Cite this article

An Erratum to this article was published on 29 February 2012

Abstract

Exposure and risk assessments were conducted to evaluate safety of speed spayer (SS) and power sprayer (PS) used for treatment of insecticide methomyl in apple orchard on the operator. Dermal patches, gloves, socks, and masks were used to monitor the potential dermal exposure, and personal air monitor with XAD-2 resins was used to evaluate the potential inhalation exposure. Validation of methods for limit of detection, limit of quantitation, recovery, reproducibility, linearity of calibration, trapping efficiency, and breakthrough tests were performed to obtain reasonable results for quantitative exposure study of methomyl. During application of methomyl, PS resulted in more dermal exposure than SS. Important contaminated parts of body were upper arms, thigh, chest, shin, hand, forearm, and head for both SS and PS. Exposure rate was 44–176 mL/h. Although the level of inhalation exposure was very low during application, relatively higher level was observed for PS than for SS. During mixing/loading, more dermal exposure occurred by SS than that of PS probably due to drift of wettable powder (WP) formulation. Exposure was mostly observed on hand, and 99.9% of hand exposure to soluble liquid formulation (215 mg) in PS was from spill of liquid formulation on gloves. However, the body exposure ratio to total mixing/loading amount and inhalation exposure during mixing/loading was very low. Margin of safety in risk assessment was much larger than 1 in all cases, indicating low risk.

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Authors and Affiliations

  1. Department of Agricultural Biotechnology, Seoul National University, Seoul, 151-742, Republic of Korea

    Eunhye Kim & Jeong-Han Kim

  2. School of Plant, Life and Environmental Sciences, Hankyong National University, Ansung, 456-749, Republic of Korea

    Joon-Kwan Moon

  3. Food Safety Evaluation Department, National Institute of Food and Drug Safety Evaluation, Cheongwon-gun, 363-951, Republic of Korea

    Hoon Choi

  4. National Institute of Agricultural Science and Technology, RDA, Suwon, 441-857, Republic of Korea

    Su-Myoung Hong

  5. Apple Research Station, NIHHS, RDA, Gyeongbuk, 716-812, Republic of Korea

    Dong-Hyuk Lee

  6. Risk Prevention Policy Bureau, Korea Food and Drug Administration, Cheong-won gun, 363-951, Republic of Korea

    Hyomin Lee

Authors
  1. Eunhye Kim
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  2. Joon-Kwan Moon
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  3. Hoon Choi
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  4. Su-Myoung Hong
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  5. Dong-Hyuk Lee
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  6. Hyomin Lee
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  7. Jeong-Han Kim
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Correspondence to Jeong-Han Kim.

Additional information

An erratum to this article can be found online at http://dx.doi.org/10.1007/s13765-011-2026-9.

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Kim, E., Moon, JK., Choi, H. et al. Exposure and risk assessment of insecticide methomyl for applicator during treatment on apple orchard. J Korean Soc Appl Biol Chem 55, 95–100 (2012). https://doi.org/10.1007/s13765-012-0016-1

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  • DOI: https://doi.org/10.1007/s13765-012-0016-1

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