• Title/Summary/Keyword: Pesticide intake

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Computation of Theoretical Maximum Daily Intake and Safety Index of Pesticides by Korean Population (한국인에 의한 농약의 이론적 최대섭취량 및 안전지표의 산정)

  • Lee, Su-Rae;Lee, Mi-Gyung;Kim, Nam-Hyung
    • Korean Journal of Food Science and Technology
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    • v.27 no.4
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    • pp.618-624
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    • 1995
  • In order to evaluate the acceptability of Korea and Codex maximum residue limits (MRLs), theoretical maximum daily intake (TMDI) by Korean population was calculated from MRL and food factor and compared with acceptable daily intake (ADI). The percent ratio of TMDI to ADI for 105 pesticides whose MRL was established in Korea was mostly below 80% and 13 pesticides exceeded the ADI. Among 82 pesticides with Codex MRL, 20 items exceeded the ADI. The main causes of exceeding the ADI according to Korea or Codex MRLs were pointed out for 22 items and it was needed to set measures to assure a safety margin.

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Toxicity Assessment and Establishment Acceptable Daily Intake of Lepimectin (레피멕틴(Lepimectin)의 독성평가와 일일섭취허용량 설정)

  • Jeong, Mi-Hye;Hong, Soon-Sung;Park, Kyung-Hun;Park, Jae-Eup;Kwack, Seung-Jun;Kim, Young-Bum;Han, Bum-Seok;Son, Woo-Chen
    • The Korean Journal of Pesticide Science
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    • v.15 no.2
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    • pp.218-229
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    • 2011
  • Lepimectin is a insecticide agent. In order to register this new pesticide, the series of toxicity data on animal testing were reviwed to evaluate its hazards to consumers and to determine its acceptable daily intake. Lepimectin was mostly excreted by feces. It has low acute oral toxicity while it has no dermal, ocular irritation and skin sensitization (As the result of subchronic, chronic toxicity and carcinogenicity showed changes of hematology and clinical biochemistry parameter of serum and blood.). Two-generation reproduction toxicity, genotoxicity, carcinogenicity and prenatal development toxicity were not proven. Therefore, the ADI for Lepimectin is 0.02 mg/kg/ bw/day, based on the NOAEL of 2.02 mg/kg/ bw/day of two-years carcinogenic toxicity study in rats and applying an uncertainty factor of 100.

Toxicity Assessment and Establishment Acceptable Daily Intake of Pyrimisulfan (피리미설판(Pyrimisulfan)의 독성평가와 일일섭취허용량 설정)

  • Jeong, Mi-Hye;Park, Kyung-Hun;Park, Jae-Eup;Kwack, Seung-Jon;Kim, Young-Bum;Han, Bum-Seok;Son, Woo-Chen
    • The Korean Journal of Pesticide Science
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    • v.15 no.2
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    • pp.208-217
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    • 2011
  • Pyrimisulfan is a herbicide. In order to register this new pesticide, the series of toxicity data on animal testing were reviewed to evaluate its hazards to consumers and also to determine its acceptable daily intake. Pyrimisulfan was excreted mostly by feces. It has low acute oral toxicity while it has no dermal, ocular irritation and skin sensitization (As the result of subchronic and chronic toxicity and carcinogenicity showed changes of hematology and liver.). Two-generation reproduction toxicity, genotoxicity, carcinogenicity and prenatal development toxicity were not proven. Therefore, the ADI for Pyrimisulfan is 0.1 mg/kg/ bw/day, based on the NOAEL of 10 mg/kg/ bw/day of 90-days repeated dose oral toxicity study in dogs while applying an uncertainty factor of 100.

Evaluation of Residual Pesticides in Fresh Ginseng Collected in Seoul

  • Kim, Tae-Rang;Park, Ki-Hwan;Jang, Mi-Ra;Choi, Young-Hee;Kim, Eun-Hee;Choi, Chae-Man;Park, Sung-Kyu;Yu, In-Sil;Hwang, In-Sook;Han, Ki-Young;Kim, Moo-Sang;Kim, Jung-Hun;Chae, Young-Zoo
    • Journal of Applied Biological Chemistry
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    • v.56 no.1
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    • pp.29-35
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    • 2013
  • This study was performed to analyze 48 kinds of pesticide residues using gas chromatography (GC)/nitrogen phosphorous detector, GC/micro electron capture detector, GC/mass selective detector, and high performance liquid chromatograph/diode array detector in 186 fresh ginseng samples collected in the Seoul area from 2010 to 2011. Fresh ginseng dietary intakes were estimated using the data from the 2009 Korea National Health and Nutrition examination survey. Residual pesticides were detected in 79 samples (42.5%) with eight different fungicides. Only 20 samples (10.8%) exceeded the maximum residue limits (MRLs) for pesticides registered by the Korea Food & Drug Administration. Among them, tolclofos-methyl residues (10.2%) exceeded the MRL for fresh ginseng in 18 ginseng seedlings and one of the two-year old fresh ginseng plants, and the residual level in just one ginseng seedling violated the MRL for pyrimethanil. The results showed that residual pesticides levels in marketable fresh ginseng around Seoul were relatively safe. The percent acceptable daily intake (%ADI) was calculated using pesticide residues in fresh ginseng and dietary intakes of fresh ginseng. The risk caused by pesticide residues in fresh ginseng was very low.

Residual Characteristics and Behavior of Azoxystrobin in Ginseng by Cultivation Conditions (인삼 중 azoxystrobin의 재배방법별 잔류특성 및 행적)

  • Lee, Jae Yun;Noh, Hyun Ho;Park, Hyo Kyoung;Kim, Jin Chan;Jeong, Hye Rim;Jin, Me Jee;Kyung, Kee Sung
    • The Korean Journal of Pesticide Science
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    • v.19 no.1
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    • pp.14-21
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    • 2015
  • To determine residual characteristics of azoxystrobin in ginseng under different cultivation conditions such as use of straw mat on cultivation soil and filling gap between ginseng stem and soil surface and also to elucidate its approximate behavior after spraying, 20% azoxystrobin suspension concentrate solution was sprayed 4 times onto 5-year-old ginseng with 10 days interval at a application rate of about 200 L/10 a and then residues in samples were analyzed. The residue level was lower in case of use of straw mat and filling the gap with soil than in case of no use of straw mat and no filling the gap, representing that use of straw mat and filling the gap with soil were contributed to decrease of pesticide residues in ginseng. A large portion of the test pesticide distributed onto ginseng leaf with a higher specific surface area. The amounts of azoxystrobin residues decreased in ginseng leaf, while increased on soil surface, as close to harvest. About 0.1% of azoxystrobin sprayed was distributed in ginseng root and 12.7-20.4% (mean 16.6%) of azoxystrobin could be decreased for dietary intake by removing of rhizome from ginseng root before intake.

Establishment of Acceptable Daily Intakes (ADIs) and Risk Assessment for Ephedrine, Menichlopholan, Anacolin, and Etisazole Hydrochloride

  • Min Ji Kim;Ji Young Kim;Jang Duck Choi;Guiim Moon
    • Korean Journal of Environmental Agriculture
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    • v.41 no.4
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    • pp.261-275
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    • 2022
  • BACKGROUND: Prior to implementing a positive list system (PLS), there is a need to establish acceptable daily intake (ADI) and maximum residue limit (MRL) for veterinary drugs that have been approved a few decades ago in South Korea. On top of that, chronic dietary exposure assessment of veterinary drug residues should be performed to determine whether the use of these veterinary drugs would cause health concerns or not. METHODS AND RESULTS: To establish the ADI, the relevant toxicological data were collected from evaluation reports issued by international organizations. A slightly modified global estimate of chronic dietary exposure (GECDE) model was employed in the exposure assessment owing to the limited residual data. Therefore, only the ADI of ephedrine was established due to insufficient data for the other veterinary drugs. Thus, instead of ADI, the threshold of toxicological concern (TTC) value was used for the other drugs. Lastly, the hazard index (HI) was calculated, except for etizazole hydrochloride, due to the potential of mutagenicity. CONCLUSION(S): The HI values of ephedrine, menichlopholan, and anacolin were found to be as high as 6.4%, suggesting that chronic dietary exposure to the residues from these uses was unlikely to be a public health concern. Further research for exposure assessment of veterinary drug residues should be performed using up-todate Korean national health and nutrition examination survey (KNHANES) food consumption data. In addition, all relevant available data sources should be utilized for identifying the potentials of toxicity.

Monitoring of Pesticide Residues in Agricultural Products Collected from Markets in Cheongju and Jeonju (청주 및 전주지역 유통 농산물 중 잔류농약 모니터링)

  • Lee, Eon-Young;Noh, Hyun-Ho;Park, Young-Soon;Kang, Kyung-Won;Jo, Seong-Yong;Lee, Seung-Reul;Park, In-Young;Kim, Tae-Hwa;Jin, Yong-Duk;Kyung, Kee-Sung
    • The Korean Journal of Pesticide Science
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    • v.12 no.4
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    • pp.357-362
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    • 2008
  • In order to survey the residual characteristics of pesticides and assess their safeties in the agricultural products from markets, the agricultural products were purchased from the wholesale and traditional markets in Cheongju and Jeonju and analyzed the pesticide residues in them. No pesticide residues were found in samples from Cheongju, whereas, in case of samples collected from Jeonju, 3 pesticides including chlorothalonil were detected from 5 samples such as eggplant from wholesale market and 3 pesticides including azoxystrobin were found in tomato and grape from traditional market. Pesticide residues were detected from 10.9% of the total samples and detection levels were less than their maximum residue levels. Their estimated daily intakes ranged from 0.00102 to 0.03616% of their acceptable daily intakes, representing residue levels of the pesticides detected were evaluated to be safe.

Estimation of the Dietary Intake of Organophosphorus Pesticides by the Korean Population in 1986-1990 (한국인에 의한 유기인계 농약의 식이섭취량 추정)

  • Lee, Su-Rae;Lee, Mi-Gyung
    • Korean Journal of Environmental Agriculture
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    • v.13 no.1
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    • pp.66-75
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    • 1994
  • Daily dietary intake of 11 organophosphorus pesticides by the Korean population was estimated to be $31{\mu}g$ per person ($0.567{\mu}g$/kg body weight/day) from known residue data on raw agricultural products and food factor based on the Korean diet, for the period of 1986-90. Intake ratio of 11 pesticides by food group was 56% from cereals, 23% from vegetables, 14% from fruits and 7% from legumes and other food materials. The ratio of the dietary intake to the ADI was 6.1% in diazinon, 5.8% in fenthion, 3.3% in fenitrothion, 1.5% in EPN and 1.7% average for 11 individual pesticides whereas the cumulative ratio of 11 pesticides was 18.7%. It is, therefore, proposed that a systematic estimate for the dietary intake of organophosphorus pesticides should be undertaken, although the present intake level would not give any adverse effect to the health of the Korean population under the current situation of pesticide usage.

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A Study on the Risk Assessment of Pesticide Residues of Agricultural to Ensure Military Food Safety (군 식품 안전성 확보를 위한 농산물 잔류농약 위해도 평가 연구)

  • Cho, Sung-Yong;Seo, Jun-Ho
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.21 no.10
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    • pp.137-143
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    • 2020
  • To ensure safety of raw materials for military foods, hazard assessment and monitoring of residual pesticides was conducted on agricultural products consumed by 9 companies based in Gyeongin and Gangwon. Residual pesticides were analyzed for 142 different products, by applying the multi-species pesticide polycomponent analysis method. Of the 36 samples analyzed, residual pesticides were detected in 7 samples, representing a detection rate of 19.4%. One particular pesticide residue was detected in peanuts, green onions, and red pepper powder, and 20 types of pesticide residues were detected in red pepper powder used in combat foods. However, all residues were found to be below the permissible level. Moreover, the hazard assessment results for Cypermethrin, Tebuconazole and EPN showed the highest concentration among the residual pesticides detected. Since the estimated intake was less than 100% as compared to the ingestion limit, it was considered to be safe. I have suggested the edit as per my understanding. Please review for accuracy, and revise appropriately if required. This is the first pesticide Risk Assessment study encompassing military requirements. Considering the results, we expect further application research, including research on reducing hazardous materials.