• 농약과학회지
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• 제15권4호
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• pp.507-528
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• 2011

포장에서 농약 살포액의 조제, 살포 등의 작업을 수행하는 농작업자는 피부노출, 호흡노출경로를 통해 농약에 노출되며, 이러한 상황에서의 농약 노출에 대한 합리적인 위해성 평가를 위해서는 해당 영농상황에서 노출량을 정량적으로 측정해야 한다. 농약 노출 측정방법으로 patch, 장갑, 양말, 마스크를 이용하는 방법과 호흡 노출은 주로 고체흡착제와 공기흡입펌프가 연결된 personal air monitor를 사용하는 것이 좋을 것으로 판단된다. 이 농작업자의 정량적 피부 노출 측정법으로 유효할 것으로 판단된다. 노출 재료에 침착/부착된 농약량이나 고체흡착제에 포집된 농약량을 신체 전체에 대한 농약 노출량으로 외삽하기 위한 EPA 자료를 대체할 수 있도록 한국 사람의 표준 신체표면적 및 호흡률을 제안하였다. 중요한 노출 인자인 피부노출의 의복 침투율과 피부 침투율, 그리고 호흡노출의 침투율을 UK-POEM과 관련된 연구결과를 참고하여 다양하게 제안하였다. 노출 평가를 위한 살포 시간은 노출 측정 재료에 침착된 농약이 분석이 될 만큼 충분한 농약이 포집될 수 있도록 살포시간이 충분해야 하는데, 국내의 SS기나 동력분무기의 경우는 1반복 당 모두 약 20~40분에 살포(약 0.1~0.2 ha)로 해서 3반복 측정 결과를 4시간으로 환산할 것을 제안하였다.

• 한국의류학회지
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• 제28권9_10호
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• pp.1292-1299
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• 2004

This survey was carried out on 256 smallholder farmers of the Jeonbuk Province to analyze their current behavior in pesticide usage and the use of protective clothing during spray work. The interviewees were at the age of about 50's in both males and females: they performed spray work mainly for their own farms. Many of them were not very well aware of the danger of pesticides and the adequate methods of pesticide handling. Water drinking and smoking during break time were the endangering factors of pesticide intoxication, reaching to 30-60% sprayers. Most of sprayers had experienced the exposures to pesticides during spray work and appealed some subjective clinical symptoms to the exposure, but they seldom sought medical treatments. More than 70% of respondents had not been wearing protective equipments during spray work. The results will be used as basic information in designing the improved protective clothing more acceptable by pesticide sprayers.

• 농약과학회지
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• 제20권2호
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• pp.172-180
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• 2016

본 연구는 국내 일부 농업인을 대상으로 유기인계 농약 노출수준과 농약살포 특성의 관련성을 규명하기 위하여 수행되었다. 소변시료를 채취하여 GC/MSD와 GC/MS/MS를 이용하여 분석하였으며, 소변 중 DMP, DMTP, DEP, DETP를 대상으로 검출률 및 노출수준을 평가 하였다. 검출률은 DMP, DMTP에서 캡이 없는 SS살포기가 캡이 있는 SS살포기보다 높았고, 보호구 착용률이 낮을수록 높았다. 노출수준은 동력 분무기가 가장 높았고, 캡이 있는 SS살포기에서 낮게 나타났다. 또한, 착용 보호구 개수가 증가할수록 노출수준이 낮아짐을 확인할 수 있었다. 검출률은 카이제곱, 노출수준 비교는 연령 및 살포방법을 보정한 GLM을 이용하여 분석하였다.

• Asian Pacific Journal of Cancer Prevention
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• 제15권7호
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• pp.3035-3039
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• 2014

Background: Lung cancer is one of the most prevalent malignancies in the world and both incidence and mortality rates are continuing to rise in Pakistan. However, epidemiological studies to identify common lung cancer determinants in the Pakistani population have been limited. Materials and Methods: In this retrospective case-control study, 400 cases and 800 controls were enrolled from different hospitals of all provinces of Pakistan. Information about socio-demographic, occupational, lifestyle and dietary variables was extracted by questionnaire from all subjects. Odd ratios (ORs) and 95% confidence intervals (CIs) were calculated. and dose-response associations were also assessed for suitable factors. Results: Strong associations were observed for smoking (OR=9.4, 95%CI=6.9-12.8), pesticide exposure (OR=5.1, 95%CI=3.1-8.3), exposure to diesel exhaust (OR=3.1, 95%CI=2.1-4.5), red meat consumption (OR=2.9, 95%CI=1.8-4.7) and chicken consumption (OR=2.8, 95%CI=1.7-49). Other associated factors observed were welding fumes (OR=2.5, 95%CI=1.0-6.5), sedentary living (OR=2.0, 95%CI=1.6-2.6), family history (OR=2.0, 95%CI=0.8-4.9), wood dust (OR=1.9, 95%CI=1.2-3.1), tea consumption (OR=1.8, 95%CI=1.2-2.6), coffee consumption (OR=1.8, 95%CI=1.1-2.8), alcoholism (OR=1.7, 95%CI=1.1-2.5) and asbestos exposure(OR=1.5, 95%CI=0.5-4.4). Consumption of vegetables (OR=0.3, 95%CI=0.2-0.4), juices (OR=0.3, 95%CI=0.3-0.4), fruits (OR=0.7, 95%CI=0.5-0.9) and milk (OR=0.6, 95%CI=0.5-0.8) showed reduction in risk of lung cancer. Strongest dose-response relationships were observed for smoking ($X^2=333.8$, $p{\leq}0.0000001$), pesticide exposure ($X^2=50.9$, $p{\leq}0.0000001$) and exposure to diesel exhaust ($X^2=51.8$, $p{\leq}0.0000001$). Conclusions: Smoking, pesticide exposure, diesel exhaust and meat consumption are main lung cancer determinants in Pakistan. Consuming vegetables, fruits, milk and juices can reduce the risk of lung cancer risk, as in other countries.

• Toxicological Research
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• 제30권4호
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• pp.251-260
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• 2014

The number of farmers who have suffered from non-fatal acute pesticide poisoning has been reported to vary from 5.7% to 86.7% in South Korea since 1975. Absorption through the skin is the main route of exposure to pesticides for farmers who operate with them. Several in vitro tests using the skins of humans or animal and in vivo tests using laboratory animals are introduced for the assessment of human dermal absorption level of pesticides. The objective of this study is to evaluate and compare international guidelines and strategies of dermal absorption assessments and to propose unique approaches for applications into pesticide registration process in our situation. Until present in our situation, pesticide exposure level to operator is determined just using default value of 10 as for skin absorption ratio because of data shortage. Dermal absorption tests are requested to get exposure level of pesticides and to ultimately know the safety of pesticides for operators through the comparison with the value of AOEL. When the exposure level is higher than AOEL, the pesticide cannot be approved. We reviewed the skin absorption test guidelines recommended by OECD, EFSA and EPA. The EPA recommends assessment of skin absorption of pesticides for humans through the TPA which includes all the results of in vitro human and animal and animal in vivo skin absorption studies. OECD and EFSA, employ a tiered approach, which the requirement of further study depends on the results of the former stage study. OECD guidelines accept the analysis of pesticide level absorbed through skin without radioisotope when the recovery using the non-labeled method is within 80~120%. Various factors are reviewed in this study, including the origin of skin (gender, animal species and sites of skin), thickness, temperature and, etc., which can influence the integrity of results.

• 농촌의학ㆍ지역보건
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• 제40권4호
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• pp.228-239
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• 2015

본 연구는 2013~2014년도 한양대학교 농업안전보건센터 현장검진에 참여한 경기 일부 지역 농업인을 대상으로 급성 농약중독 증상 유병률과 이와 관련된 위험요인을 규명하고자 하였다. 연구 결과, 급성 농약중독은 농업종사기간, 농약 살포 년수, 연간 농약 살포일수, 평생 농약 살포일수가 길수록, 혼합 농약 사용 개수가 많을수록, 노지 재배를 하는 경우 위험도가 증가하는 것으로 나타났다. 향후, 급성 농약중독에 대한 취약 집단을 좀 더 체계적으로 관리 및 교육할 수 있는 방안의 마련이 필요할 것이다.

• 농업과학연구
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• 제49권1호
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• pp.151-162
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• 2022

This study was conducted to develop a rail-type boom sprayer, performing safe spraying with improved ergonomic postures during pesticide spraying of agro-photovoltaic power system. The sprayer was designed to reduce labor cost and to be safe from pesticide exposure, and was analyzed through a comparison with a conventional spray method. The rail-type boom sprayer, consisted of a self-propelled spray and hose winder, hose, and boom sprayer parts, was designed to automatically pull and spray in the vertical and horizontal directions. The performance of the sprayer for an agro-photovoltaic power system was appropriate. From the analysis of postures with the Ovako Working posture Analysis System (OWAS), Rapid Entire Body Assessment (REBA), and Rapid Upper Limb Assessment (RULA) methods, the musculoskeletal risk factors to the body using the rail-type boom sprayer were less than those with the conventional power sprayer. In addition, the possibility of pesticide poisoning was reduced compared to the conventional power sprayer. The working capacity with the rail-type boom sprayer was more than five times greater, compared with the conventional power sprayer. After performing pesticide spraying with the rail-type boom sprayer, the labor cost was reduced to 42,750 won·yr^-1, which was 90% (402,750 won·yr^-1) less than the cost with the use of a conventional power sprayer (445,500 won·yr^-1).

• Asian Pacific Journal of Cancer Prevention
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• 제15권2호
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• pp.781-784
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• 2014

Background: Although the cause in most cases of childhood leukemia is not known, the contribution of environmental risk factors in the context of genetic predisposition has been reported with inconsistent results. The aim of this study was to examine association of childhood leukemia with maternal factors especially during pregnancy, to help in avoiding risk factors. Materials and Methods: This case-control study included children younger than 18 years diagnosed with leukemia from 2008 to 2012. Controls were randomly selected and individually matched to cases with respect to age, sex, and residency. All variables were compared between cases and control to determine any significant association with leukemia. Results: Statistically significant associations between risk of childhood leukemia with mother's education (p=0.001), occupation (p=0.0005) and pesticides exposure (p=0.005) during pregnancy were found. However, there were no significant links with maternal age (p=0.090), history of fetal loss (0.85), history of radiography during pregnancy (p=0.400), history of drug intake (p=0.689) and infection (p=0.696) during pregnancy. Conclusions: The results showed increased risk of leukemia in children whose mothers were working in agriculture and were exposed to pesticides during pregnancy. The further study needs to be investigated to know association of various maternal risk factors with leukemia which remained unknown in this study.

• 농촌의학ㆍ지역보건
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• 제29권2호
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• pp.265-285
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• 2004

이 연구는 농약의 노출에 의해 중추신경 증상이 발생할 수 있으며, 장기간의 농약노출로 인해 중추신경계 영향이 있을 것이라는 가설을 검정하기 위해 농약 누적노출을 추정하였으며, 농약 노출 관련 요인에 따라 신경독성증상 호소의 차이를 보았다. 연구결과는 다음과 같다. 지난 1년 동안 농약살포시간은 과수농민 69.6시간, 밭농민 41.1시간, 축산농업인 25.8시간으로 통계적으로 유의한 차이가 있었으며, 누적노출지수는 과수농민 119.5g, 밭농민 63.9g, 축산농업인 23.7g으로 통계적으로 유의한 차이가 있었다(p<0.01). 누적노출지수에 의해 분류하면, 과수농민은 고노출군, 밭농민은 중간노출군. 축산농민은 저노출군에 해당하였다. 과거 농약중독 경험률은 과수농민 40.7%, 밭농민 35.1%, 축산농민 23.8%로 통계적으로 유의한 차이가 있었으며 (p<0.001), 지난 3개월 동안 농약중독 증상 경험률은 과수농민 67.2%, 밭농민 55.3%, 축산농민 20.5% 순으로 통계 적으로 유의한 차이가 있었다(p<0.001). 신경독성 자각증상의 총점과 6개 이상 증상을 호소하는 경우는 대조군 및 축산농민에 비해 밭농민 및 과수농민에서 유의하게 증가하였다(p<0.001). 연령, 교육수준, 성, 흡연, 음주를 보정한 상태에서도 6개 이상 신경독성 증상 발생의 교차 비는 비노출군에 비해 과수농민이 3.08(95% CI 1.50-6.30)배, 누적노출지수가 75% 이상 높은 군이 2.75(958% CI 1.12-6.78) 배, 과거 농약중독 경험이 있는 경우 1.97(95% CI 1.21-3.20)배, 현재 농약중독증상을 경험한 경우 정상군에 비해 경도 중독군 3.03(95% CI 1.47-6.22)배, 중등도 중독군이 6.34(95% CI 3.03-13.25)배 높게 나타났다. 이상의 결과로 볼 때, 신경독성증상의 발생에 일관되게 농약노출과 관련된 요인이 유의하게 나타나고, 농약노출이 높은 것으로 평가된 과수농민에서 중추신경계 증상 호소가 유의하게 녹게 나타나 만성 농약노출에 의해 중추신경계 영향이 발생할 가능성이 제기된다.

• 한국임상수의학회지
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• 제40권3호
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• pp.197-202
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• 2023

Canine lymphoma (cL) is the most common hematopoietic cancer in dogs. Various determinants have been evaluated to find the predisposing factors in both human and canine lymphoma. Due to common risk factors and similar pathways, cL is considered a potential model for non-Hodgkin lymphoma (NHL) in humans. In this case-series study, major hospitals in Tehran consented to take part in this study and between the years of 2020-2022, provided us with 52 cL cases which were approved by the attended pathologist. We designed a questionnaire and collected information about the dogs and their owners. Most of the owners were women, young (younger than 50 years old), had at least diplomas and interestingly were housewives or househusbands. Male dogs with middle to old age (more than 6 years) were mostly referred. The most common characteristics were neutered, normal BCS, purebred, urban but not industrial residence, previous tobacco smoke exposure but no history of previous fungicide or pesticide exposure. Also, most of them did not have any previous autoimmune or immunosuppressive diseases. Presented characteristics should be considered risk determinants but to approve their validity, they should be further evaluated in epidemiological studies.