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이병국,맹광호,이광묵 최신의학사 1975 最新醫學 Vol.18 No.2
An Environmental and santiary survey was carried out on 585 houses and 36 wells in Gunseo Area, Okcheon-Gun, Choongbook Province. As a survey on sanitary environments of houses, number of rooms they were using, artificial lightening method, house heating method and sanitary measures in the kitchen were checked. Sanitary environments of drinking water sources were also investigated. Other tested items with water samples were hardness, pH, and chloride ion, and the results were summarized as follows: 1. 38.1 % of all subjected households were using 2 rooms and 29.4%, 3 rooms. 97.0% of all households were lightening their houses with oil lantern and those who were using elec tric lights were 1.7%. Those who were using coal briquett for their house heating were 12 households (2.0%). 7.4% of all households did not have any cupboard in their kitchens and those who were using dry wiping cloth were only 30.3% among all subjected housholds. 2. Main drinking water source was well (78.3%) and the pump was next (15.0%). 33.3% of all drinking water sources were beeing used by more than 6 househods. 96.1% of all drinking sourees (except pumps) were not covered and the drainage was bad in 30.0% of all drinking sources. 3. 47.0% of all households were disposing sewage unsanitarily and most of the rubbishes (93.2%) were beeing used for a compost. 4. 1% of the households were throw them away around their houses. Excrements were beeing used for fertilizer among 97.9% of all households. 4. The average hardness of 36 sampled well water was 188 ppm and the hardness of 7 samples(19.5 %) were over 300 ppm. 5. The average pH of 36 well surveyed were 6.48. Two samples were below 5.5 and 4 were over 7.1. 6. The average chloride ion of all samples were 75.2 ppm. The chloide ion of 4 samples were over 150 pPm, the international standard for drinking water.
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유기인제 농약 폭로로 인한 혈중 Cholinesterase 활성치와 요중 P-nitrophenol의 배설량의 변동
이병국,정규철,Lee, Byung-Kook,Chung, Kyou-Chull 대한예방의학회 1974 Journal of Preventive Medicine and Public Health Vol.7 No.1
In order to evaluate the health hazard due to exposure to organophosphorus insecticides, we measured the blood cholinesterase activity ana urinary para-nitrophenol among 56 exposed subjects. They are orchard workers, rice plant workers and smithion factory workers. The clinical symptoms were also checked by physicians. We also measured the blood cholinesterase activity and urinary para-nitrophenol excretion of 20 urban people and 15 rural people who had never been exposed to organophosphorus insecticides in order to compare them according to age, sex and geographical differences. And these results were also compared with those of exposed groups. The results obtained were as follows. 1. The normal plasma cholinesterase activity and cell cholinestrase activity were $0.861{\pm}0.148\;{\Delta}pH/hr$ and $0.822{\pm}0.154\;{\Delta}pH/hr$. And normal para-nitrophenol in urine was $1.21{\pm}0.52mg/liter$. 2. No significant difference was existed in blood cholinesterase activities and urinary para-nitrophenol excre tion according to sex, age and geographical difference. 3. The plasma cholinesterase activity and cell cholinesterase activity of orchard workers, rice plant workers and smithion factory workers were $0.682{\pm}0.189\;{\Delta}pH/hr,\;0.775{\pm}0.160\;{\Delta}pH/hr,\;0.754{\pm}0.123\;{\Delta}pH/hr,\;and\;0.691{\pm}0.082\;{\Delta}pH/hr,\;0.756{\pm}0.117\;{\Delta}pH/hr,\;0.739{\pm}0.117\;{\Delta}pH/hr$. And significant decreses in blood cholinesterase activities were existed among orchard workers and smithion factory workers compared with control group. 4, The urinary para-nitrophenol excretions of orchard workers, rice plant workers and smithion factory workers were $1.33{\pm}0.66mg/liter,\;1.19{\pm}0.88mg/liter\;and\;1.37{\pm}0.67mg/liter$ and there were no significant difference between exposed groups and control group. 5. The clinical symptoms complained during and after organophosphorus insecticides exposure were frequently ranked by headache (67.7%) and vertigo (64.5%) and muscular ataxia and weakness (51.6%).
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