• Journal of Environmental Science International
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• v.31 no.5
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• pp.447-456
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• 2022

This study was conducted to propose a way to increase the accuracy and precision of 𝛽-ray measurement equipment. Statistical processing results of equivalent evaluation data from 2016 to 2021 confirmed that the concentration of micro dust measured by 𝛽-ray measurement equipment was higher than that of micro dust sampler. According to quarterly data, it was confirmed that the data from the third quarter (July to September) showed a different trend from other periods, which is assumed to be due to weather conditions. This study indicates that automatic micro-dust measurement equipment evaluation at air pollution measuring stations during the third quarter should be excluded. The evaluation cycle should be changed from once every two years to quarterly. In addition, when the criterion for determining equivalence evaluation falls within the range of the slope and intercept values of the existing trend line, it is necessary to evaluate the R² value together and reduce the slope from 0.9-1.1 to 0.9-1.0.

• Journal of Environmental Health Sciences
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• v.50 no.2
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• pp.146-156
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• 2024

Background: Children who use playground facilities are exposed to potential risks due to the high concentration of heavy metals contained in the finishing materials of facilities in children's playgrounds. Objectives: The purpose of this study was to investigate the concentration of heavy metals in the finishing materials of outdoor children's playgrounds where harmful heavy metals exist in Gwangju and to conduct human risk assessment for children and adults by age to find the risks and limitations. Methods: The bottom and top layers of double-painted paint were peeled off and collected together from the finishing materials of children's play facilities such as slides, swings, and seesaws in 147 children's parks in Gwangju. Heavy metals were analyzed using ICP-OES, etc., and human risk assessment was performed using the concentrations of heavy metals. Results: Based on 1.0E-04, which requires legal regulation, CTE was found to pose a carcinogenic risk for preschool children and no carcinogenic risk for the rest of the age groups. However, RME showed that both men and women of all ages had a carcinogenic risk. For reference, when the carcinogenic risk was based on 1.0E-06, CTE was found to pose a carcinogenic risk from infants to elementary school students, and RME was found to have a carcinogenic risk in all age groups. It was judged that there is a non-carcinogenic risk if the non-carcinogenic risk exceeds 1 based on the hazard index (HI) 1. In CTE, there was no non-carcinogenic risk, and RME for preschooler males (1.49E+00) and females (1.56E+00) were found to have non-carcinogenic risk. Conclusions: This study was meaningful in that it examines the differences in the current management of heavy metals concentration standards and potential carcinogenic and non-carcinogenic risks to the human body and discusses the relationship between heavy metals and human health effects.

• 산업보건소식
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• no.38
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• pp.28-31
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• 1987

노동부는 유해물질의 허용농도를 작업환경측정방법과 분리하여 각각의 규정을 제정함으로써 허용농도설정의 근본취지에 부합되게 하는 동시에 허용농도 제정대상 유해물질의 종류를 394종(현재 60종)으로 확대하여 산업안전보건법 제18조 및 동법 제31조 규정에 의한 작업환경개선 및 평가의 기준 으로 사용할 수 있도록 유해물질의 허용농도를 고시 제 86-­45호로 제정하고 현행 작업환경측정방법을 고시 제 86-46 호로 개정하였으며 '87.4.1 부터 시행한다.

• Journal of Environmental Health Sciences
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• v.20 no.1
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• pp.1-7
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• 1994

I. 우리나라 학교 환경교육의 발전과정 : 우리나라에서 환경교육이 언급되기 시작한 것은 경제개발 5개년 계획의 진행과정에서 호나경을 고려하지 않은 개발을 계속함으로써 곳곳에서 환경파괴와 오염문제가 발생하기 시작한 1970년대 초부터이지만 그때까지는 국가정책이 경제발전에 중점을 두고 있었으므로, 환경교육은 자연보호운동과 구별되지 않은 채 국민을 대상으로 한 홍보의 수준을 크게 벗어나지 못하였다. (생략)

• Journal of the Korean association of regional geographers
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• v.20 no.4
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• pp.444-453
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• 2014

Inequality of environmental impact is forecast to deepen due to the damage of environmental risk by the interaction between environmental and social inequalities causing more harms to environmentally vulnerable population. This study assessed the integrated cumulative impact of Seoul using Environmental Health Screening Tool developed by Environmental Protection Agency of California. In order to screen vulnerable area to environmental health, 10 indexes have been selected according to the environmental burden of exposure to environment and public health effects, population characteristics of sensitive populations and socio-economic factors. As a result of assessment conducted on cumulative impact of Seoul for years 2009~2011 through Environmental Health Screening Tool, risk factor for districts of Gangseo and Gangnam of Seoul showed high - Gangseo area indicated high risk factor both in environmental burden and population characteristics, while Gangnam area appeared high in environmental burden. The result of survey will be able to suggest scientific basis to push through fair and effective environmental policy in consideration of environment vulnerable population.

• 월간산업보건
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• s.185
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• pp.2-29
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• 2003

협회는 8월 27일, "모든 근로자에게 양질의 보건관리를" 주제로 한 좌담회를 개최하였다. 협회 조규상 명예회장의 사회로 진행된 좌담회에는 김종효 과장(노동부 산업보건환경과), 염용태 교수(한국특수건강진단협회장), 박정일 교수(대한산업의학회장), 김광종 원장(산업안전보건연구원), 정문희 교수(한양대 간호학과) 등 5명이 토론자로 참석하였다. 산업보건을 되돌아보며 현재, 미래를 생각하고 급변하고 있는 산업사회 속에서 근로자의 기본권인 건강과 보건이 모든 근로자에게 고루 미치도록 방도를 급변하고 있는 산업사회 속에서 근로자의 기본권인 건강과 보건이 모든 근로자에게 고루 미치도록 방도를 강구하려는 목적으로 법과 행정, 건강과 질병, 보건관리, 노동환경조건, 보건인력과 교육별로 실태와 문제점 해결방안에 대해 중점 논의하였다.

• Journal of Environmental Health Sciences
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• v.45 no.2
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• pp.99-112
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• 2019

Objective: This study aims to analyze the characteristics of airborne radon and thoron level ($Bq/m^3$) generated from household products containing monazites, and estimate the effective doses (mSv/yr). Method: Radon & Thoron detector EQF3220 was used to monitor real-time airborne radon and thoron level ($Bq/m^3$), and their daughters ($Bq/m^3$) were recorded every two hours. Effective doses (mSv/yr) for radon and thoron were estimated according to models developed by International Commission on Radiological Protection (ICRP) and United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR). Results: The average levels of radon and thoron were $87.8Bq/m^3$ (range; $20.8-156.3Bq/m^3$) and $1,347.5Bq/m^3$ (range; $4-5,839.7Bq/m^3$), respectively. The average equilibrium factors (F) were 0.23 and 0.007, respectively. The levels of radon progeny were far higher than that thoron. Latex mattress showed the highest F (0.38). The average effective doses were estimated to be ICRP (1.9 mSv/yr) and UNSCER (1.3 mSv/yr) for radon and UNSCEAR (1.6 mSv/yr) for thoron. Conclusions: Our results have far exceeded the allowable effective dose for general population (1 mSv/yr). The government's actions such as the ban of use of consumer products containing monazite and the establishment of surveillance system to evaluate health effects for the people affected should be taken as early as possible.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.56 no.5
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• pp.626-633
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• 2023

Vibrio spp. are aquatic bacteria that are ubiquitous in warm estuarine and marine environments. Especially, V. vulnificus and V. cholerae are currently known to cause potentially fatal infections in humans. This study investigated the distribution and antibiotic resistance of V. vulnificus and V. cholerae isolated from coastal areas of Gyeongsangnam-do in 2022. A total of 252 samples of water, shellfish and coastal sediment were collected from 7 locations along the coast, and 124 samples of fishery products were collected from markets. Among the 252 samples, forty-four V. vulnificus (11.7%) and fourteen V. cholerae non-O1/non-O139 (3.7%), none of which carried the ctx gene, were isolated. Out of the 124 samples, 6 (4.8%) tested positive for V. vulnificus and V. cholerae was not detected. The isolation rates of V. vulnificus and V. cholerae showed a significant correlation with environmental factors such as seawater temperature and salinity. In an antibiotic resistance test, V. vulnificus was susceptible to amikacin, gentamicin, imipenem trimethoprim/sulfamethoxazole, and ciprofloxacin, but resistant to cefoxitin (100.0%), followed by tetracycline (9.1%). Multidrug resistance was also observed. Continuous monitoring of Vibrio pathogens with water temperature and salinity is expected to help reduce the outbreaks, and rational use of antibiotic agents is needed to prevent the accession of antibiotic-resistant microorganisms in aquatic ecosystems.

• Journal of Environmental Health Sciences
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• v.50 no.4
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• pp.274-281
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• 2024

Background: One of the major causes of pathogenic E. coli is the feces of infected livestock, and the management of the livestock environment is necessary to prevent pathogenic E. coli. Objectives: The prevalence of pathogenic E. coli was identified from livestock environments, and the molecular characteristics and antibiotic resistance profiles of the isolated pathogenic E. coli strains were analyzed. Methods: In 2022 and 2023, nine points of livestock houses at sites in Chungcheongnam-do Province were selected, and 100 cow feces or soil samples around the livestock houses were collected once per month. Pathogenic E. coli was isolated by selective culture and identified using multiplex PCR. Antibiotic resistance was tested on the isolated strains by using VITEK-2, and candidate strains were selected to perform 16s rRNA sequencing and phylogenetic analysis. Results: A total of 100 samples were tested, and 60 pathogenic E. coli strains were isolated. Of these, 45 and 15 isolates were determined to be single and hybrid pathogenic E. coli , respectively. Among the 15 hybrid pathogenic E. coli strains, eight, five, and two strains were respectively identified as EHEC/ETEC, EHEC/EPEC, and EHEC/ETEC/EPEC hybrids. All 45 isolates showed resistance to at least one antibiotic, and they were susceptible to cefotaxime, amikacin, nalidixic acid, and ciprofloxacin. The highest resistance was against cefalotin, tetracyclin, and ampicillin (20.0%~58.3%). The 16s rRNA sequences of candidate isolates revealed nucleotide sequence identities of 99.1% to 100%. Conclusions: In order to manage pathogenic E. coli from the One Health animal environment perspective, the characteristics of the occurrence of pathogenic E. coli from the livestock environment and molecular biology and antibiotic resistance to isolated strains were analyzed. In order to prevent and manage the occurrence of pathogenic E. coli, these monitoring studies must be continuously conducted.

• Journal of Environmental Health Sciences
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• v.45 no.3
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• pp.273-284
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• 2019

Objective: This study was performed to estimate the number of those who used humidifier disinfectants (HDs) and experienced health effects from exposure to HDs in Korea between 1994 and 2011. Methods: A nationwide interview survey was conducted for the representative sample to identify the proportion of those who used HDs among the general population (n=3,001). Another online survey was conducted for those exposed to HDs to find the proportion of those who experienced health effects among those who were exposed to HDs (n=3,993). Statistics for population size by region and year (1994-2011) were used to estimate the cumulative number of those exposed to HDs and those who experienced health effects. In terms of the proportion of those exposed to HDs, those less than 30 years of age were excluded due to an issue related to information bias. Various approaches for estimation included the capture-recapture method for estimation of those who experienced health effects. Results: The cumulative proportion of those exposed to HDs was 6.7% among the general population, and the proportion of those who experienced health effects among those who were exposed to HDs was 13.9%. Based on these factors, it was estimated that 3.5 to 4.0 million people were exposed to HDs and 350 to 400 thousand experienced health effects at least requiring visiting a hospital. Conclusion: It is suggested that a nationwide representative sample may be essential for population size estimation of those exposed to environmental risk factors and of those who experienced health effects.