http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Picoxystrobin 살포후 강우를 고려한 지렁이 위해성 평가
홍순성(Soonsung Hong),유아선(Are-Sun You),정미혜(Mihye Jeong),이제봉(Jae Bong Lee),임양빈(Yangbin Ihm) 한국농약과학회 2013 농약과학회지 Vol.17 No.4
This study was performed in order to assess the risk of earthworm when the picoxystrobin was sprayed in Korean orchard. The acute toxicity (LC<SUB>50</SUB>) of picoxystrobin active ingredient(99.3%) and soluble concentrate (25%) against earthworm was showed 10.93 mg/kg and 8-16 mg/kg respectively. This earth worm toxicity value means that the picoxystrobin do not show the earthworm risk in present Korean risk assessment system. However, in the test which was simulated the rainfall after spraying, all the earthworm were died in 24 hours. This result indicated that the risk assessment for the earthworm should be considered the weather condition.
변형된 UK-POEM을 이용한 한국 과수 농약살포자 위해성 평가
홍순성(Soonsung Hong),유아선(Are-Sun You),정미혜(Mihye Jeong),박경훈(Kyung-Hun Park),박재읍(Jae-Yup Park),이영자(Young-Ja Lee) 한국농약과학회 2013 농약과학회지 Vol.17 No.1
This study was performed in order to assess the risk of korean orchard worker due to pesticide exposure. The amount of pesticide exposure was calculated based on the informations of 97 kind of items that are used the form of a spraying in Korean orchard. The risks of these pesticides were assessed to compare the exposure amount with AOEL (acceptable operator exposure level) which was released form developed countries. When the operator sprayed pesticides using speed sprayer, 74.2% of pesticide items showed the risk for operator if the operator have not worn the personal protective equipment (PPE), and 42.3% of pesticide items showed the risk for operator if the operator have worn the PPE. In case of using motor sprayer, 64.1% of pesticide items showed the risk for operator if the operator have not worn the PPE, and 19.4% of pesticide items showed the risk for operator if the operator have worn the PPE. This result was indicated that the risk of pesticide against the operator was very high in korean orchard operator.
홍순성(Soonsung Hong),정미혜(Mihye Jeong),박경훈(Kyung Hun-Park),유아선(Are-Sun You),박연기(Yeon-Ki Park),이제봉(Je-Bong Lee),김찬섭(Chan-Sub Kim),신진섭(Jin-Sup Shin),박재읍(Jae-Eup Park) 한국농약과학회 2010 농약과학회지 Vol.14 No.2
This study was carried out to estimate the risk of pesticide operators who use high toxicological pesticides. The class II (highly hazardous) pesticides registered in korea were 15 products, and 11 products were spray type pesticides at orchard file in 2009. The using information based on the pesticide label and the data searched through survey of actual condition on pesticides were used for calculate the pesticide operator exposure dose. The risk quotients of these pesticides against the pesticides operator were calculated as devide pesticide exposure dose by reference dose which were presented by EFSA (European Food Safety Authority), JMPR (Joint FAO Meeting on Pesticide Residues), and US/EPA (United States Environmental Protection Agency). Omethoate showed the highest risk quotient and the values were 338 and 75 when the operator spray using speed sprayer and motor sprayer respectively. Risk quotients of all class II pesticide were above 1. This result means that the risk potential of these pesticides are very high.
살균제 Isotianil의 독성평가와 일일섭취허용량 설정
정미혜(Mihye Jeong),홍순성(Soon Sung Hong),박경훈(Kyung-Hun Park),박재읍(Jae-Eup Park),홍무기(Moo-Ki Hong),임무혁(Moo-Hyeog Im),김용범(Young-Bum Kim),한범석(Bum Seok Han),한증술(Jeung-Sul Han) 한국농약과학회 2010 농약과학회지 Vol.14 No.4
Isotianil is a fungicide which has prevention effects against rice blast disease. In order to register this new pesticide, the series of toxicity data on animal testing were reviewed to evaluate its hazards to consumers and to determine its acceptable daily intake. Isotianil was almost excreted by urine and feces. It has low acute oral toxicity while has no skin toxicity and ocular irritation. Its skin sensitization was evaluated as slight. Genotoxicity of parent compound and metabolite was negligible. Chronic toxicity tests on rats and dogs showed changes of hematology, clinical biochemistry and liver weight. It had no reproductive and teratogenic effects. The estimation of Acceptable Daily Intake(ADI) is based on the lowest no-observed adverse effect level (NOAEL). The lowest NOAEL of 2.83 ㎎/㎏ bw/day was found in the twelve-months rats study. The NOAEL was based on increased liver weight and treatment-related effect on clinica chemistry finding at the nest higher dose level of 2.83 ㎎/㎏ bw/day. Therefore, it is considered appropriated to apply an uncertainty factor of 100 to the NOAEL 2.83 ㎎/㎏ bw/day from the rat study, resulting in an ADI of 0.028 ㎎/㎏ bw/day.
정미혜(Mihye Jeong),김미경(Mi Kyoung Kim),박수진(Soo Jin Park),유아선(Are Sun You),홍순성(Soon Sung Hong),박경훈(Kyung-Hun Park),박재읍(Jae-Eup Park) 한국농약과학회 2012 농약과학회지 Vol.16 No.3
It is common to use many experiment animals to evaluate the toxicity of chemicals including pesticides. For protecting animal, the concepts of 3R (Reduction, Replacement, Refinement) were introduced and in vitro alternatives methods actively have been developed all over the world. Many experimental animals for toxicological tests have been used, so that it is important to establish the alternative methods. In this study, the alternative method using reconstituted human skin model (Keraskin<SUP>TM</SUP>) was conducted for classification of skin irritation on pesticides. Sixteen formulations selected on the basis of the degree of irritation were treated by Keraskin<SUP>TM</SUP> test. The percent of cell viability was measured into the culture medium collected after treatment of the pesticides for 24-72 hrs. The skin irritations of formulations were evaluated by the cell viability. In this study, The 4 formulations with mild irritation in rabbits were evaluated as nonirritant, the 6 formulations with moderate and severe irritation were evaluated as irritant in human skin model test. We suggest that the alternative test using Keraskin<SUP>TM</SUP> model could be used as toxicity evaluation for primary irritation index (P.I.I.) score of greater than or equal to 2.1 of pesticides. The further studies should be required to apply for hazardous assessment of pesticides on alternative skin irritation methods because of the interindividual variability of the sensitivity of skin irritation on pesticides.
식물 추출물 라벤더, 레몬 유칼립투스 및 계피 오일의 급성독성평가
정미혜(Mihye Jeong),권미정(Mi-Jeong Kwon),박수진(Soo-Jin Park),홍순성(Soon Sung Hong),박경훈(Kyung-Hun Park),박재읍(Jae-Eup Park),연성흠(Sung-Hum Yeon) 한국농약과학회 2010 농약과학회지 Vol.14 No.4
The acute toxicity test of high bio-active plant essential oils was conducted with Lavender, Lemon eucalyptus and Cassia oils selected to develop environment-friendly insecticides. The results of acute oral toxicity using rats showed that LD?? of over 2,000 ㎎/㎏ bw for Lavender, Lemon eucalyptus and Cassia oils. The calculated acute dermal LD?? value of all testing materials was over 4,000 ㎎/㎏ bw. The Skin irritation test indicated that Lavender and Lemon eucalyptus oil have no irritation while Cassia oil has a moderate irritation. For the Eye Irritation test, the result showed no irritation for Lavender and Lemon Eucalyptus oil and irritation for Cassia oils. However, the irritation was not showed for Eye Irritationwashing test of Cassia oil. Consequently, the Lavender and Lemon eucalyptus oils were showed to be low in toxicity whereas Cassia oil indicated to cause a moderate irritation on the skin and eyes.
레피멕틴(Lepimectin)의 독성평가와 일일섭취허용량 설정
정미혜(Mihye Jeong),홍순성(Soon Sung Hong),박경훈(Kyung-Hun Park),박재읍(Jae-Eup Park),곽승준(Seung Jun Kwack),김용범(Young-Bum Kim),한범석(Bum Seok Han),손우찬(Woo Chen Son) 한국농약과학회 2011 농약과학회지 Vol.15 No.2
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 ㎎/㎏/ bw/day, based on the NOAEL of 2.02 ㎎/㎏/ bw/day of two-years carcinogenic toxicity study in rats and applying an uncertainty factor of 100.
펜티오피라드(Penthiopyrad)의 독성평가와 일일섭취허용량 설정
정미혜(Mihye Jeong),홍순성(Soon Sung Hong),박경훈(Kyung-Hun Park),김찬섭(Chan-Sub Kim),박재읍(Jae-Eup Park),홍무기(Moo-Ki Hong),임무혁(Moo-Hyeog Im),김용범(Young-Bum Kim),한범석(Bum Seok Han),한증술(Jeung-Sul Han) 한국농약과학회 2010 농약과학회지 Vol.14 No.4
Penthiopyrad is a fungicide agent in types of pyrazole which is showing the effect of prevention in fungal disease and powdery mildew. In order to register this new pesticide, reports of acute toxicity and chronic toxicity by animal study were examined to set acceptable daily intake to evaluate hazards of consumers. Acute toxicity was low in toxic, and it did not have the effect of acute dermal toxicity, acute eye irritation, or skin sensitization. As the result of the study in chronic toxicity, the common effect of chemical appeared in the liver and thyroid which was proven as a toxic effect. Two-generation reproduction toxicity, genotoxicity, and prenatal development toxicity were not proven. As the result of carcinogenic study, increase of thyiroid follicular adenoma in the rat and the frequency of liver hepatocellar adenoma in mice were also increased. However, it was decided that the threshold value on the effect in chemicals could be controlled through study liver enzyme induction. Therefore, the ADI for penthiopyrad is 0.081 ㎎/㎏/ bw/day, based on the NOAEL of 8.10 ㎎/㎏/ bw/day of twelve-months dogs study and applying an uncertainty factor of 100.
식물추출물 마늘 추출액, 잔톡실럼 정유, 레몬그라스 정유 함유 유제 3종의 생태독성평가
유아선(Are-Sun You),홍순성(Mihye Jeong),정미혜(Soon-Sung Hong),박경훈(Kyung-Hun Park),장희섭(Hee-Seop Chang),이제봉(Je Bong Lee),박재읍(Jae-Yup Park) 한국농약과학회 2012 농약과학회지 Vol.16 No.4
Environment-friendly agro-materials are are likely to be preferred to chemical insecticides recently. For this reason, many studies are conducted to develop environment-friendly insecticides containing natural materials. This study was also conducted so as to assess ecotoxicity for Emulsifiable concentrate (EC) containing 30% of garlic extract or two plant essential oils (Zanthoxylum, Lemongrass) expected to prevent from pests and be used for agro-materials. Target species used to assess acute toxicity were invertebrate (Daphina magna), fish (Oryzias latipes), honeybee (Apis mellifera L.) and earthworm (Eisenia fetida). The EC<sub>50</sub> values for of garlic extract 30% EC, Zanthoxylum oil 30% EC and lemongrass oil 30% EC to Daphina magna were 3.3, 10, and 10 mg L<sup>?1</sup>, respectively. The category of garlic extract 30% EC was moderately toxic, while those of Zanthoxylum oil 30% EC and lemongrass oil 30% EC were slightly toxic according to standard of USEPA. EC<sub>50</sub> for both of Zanthoxylum oil 30% EC and lemongrass oil 30% EC were more than 10 mg L<sup>?1</sup> then they were considered as slightly toxicity. In case of acute toxicity test to fish, LC<sub>50</sub> of garlic extract 30% EC was 3.3 mg L<sup>?1</sup>. Zanthoxylum oil 30% EC and lemongrass oil 30% EC indicated LC<sub>50</sub>> 10 mg L<sup>?1</sup>. Classification of acute toxicity to all test substances was in Korea criteria. Acute contact and oral toxicity test to Honeybee were conducted. As a result, LD<sub>50</sub> of all test substances were more than 100 a.i. μg bee<sup>?1</sup> in the acute contact test while LD<sub>50</sub> of garlic extract 30% EC was 4.4 a.i. μg bee<sup>?1</sup> and LD<sub>50</sub> of Zanthoxylum oil 30% EC and lemongrass oil 30% EC were more than 100 a.i. μg bee<sup>?1</sup>. In case of acute toxicity test to earthworm, LC<sub>50</sub> of garlic extract 30% EC, Zanthoxylum oil 30% EC and lemongrass oil 30% EC were 267, 592, and 430 mg kg<sup>?1</sup>, respectively. In conclusion, if the safety for earthworm is confirmed, these substances are expected to be use for environment-friendly insecticide materials with low risk against ecosystem and contribute to developing environment-friendly agro-materials.