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RISS 인기검색어
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- 저자 : 하권철 ( Kwonchul Ha ) (검색결과 4 건)
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곽수영,이기영,김성렬,김성천,양원호,하권철,Guak, Sooyoung,Lee, Kiyoung,Kim, Sungreol,Kim, Sungcheon,Yang, Wonho,Ha, Kwonchul 한국환경보건학회 2015 한국환경보건학회지 Vol.41 No.1
Objectives: This study assessed the impact of the smoke-free law on secondhand smoke exposure in computer game rooms by measuring concentrations of particulate matter smaller than $2.5{\mu}m$($PM_{2.5}$). Methods: Indoor $PM_{2.5}$ concentrations were measured in 56 (during the smoke-free guidance period) and 118 computer game rooms (after the law went into effect) in four cities (Seoul, Cheonan, Daegu and Kunsan) in Korea. The number of smokers in the computer game rooms was also counted every five minutes. Results: Although a smoking ban had been implemented nationally, smoking was observed in 47% of the computer game rooms. Smoking density decreased from 1.62 persons per $100m^3$ during the guidance period to 0.32 persons per $100m^3$ after the smoke-free law. There is no statistically significant difference of $PM_{2.5}$ concentrations before and after the smoking ban. The $PM_{2.5}$ concentration was two times higher than the US NAAQS of $35{\mu}g/m^3$. The $PM_{2.5}$ concentration in computer game rooms without smokers was two times higher than the outdoor concentration. Conclusion: The smoke-free law in computer game rooms was complied with, even after the guidance period, in Korea. Indoor $PM_{2.5}$ concentration after smoke-free law implementation was high due to this non-compliance. High $PM_{2.5}$ concentration in computer game rooms without smokers might be due to smoking booths. The complete prohibition of smoking in computer game rooms should be implemented to protect patrons from secondhand smoke exposure.
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한국의 의료폐기물 발생 및 처리의 공간적 분포에 관한 연구
오세은,이진헌,안호기,김기연,박석환,하권철,지경희,황성호,윤오섭,홍영습,이은일,김판기,이경무,Oh, Se-Eun,Lee, Jinheon,Ahn, Hoki,Kim, Ki-Youn,Park, Seokhwan,Ha, Kwonchul,Ji, Kyunghee,Hwang, Sungho,Yoon, Oh-Sub,Hong, Young-Seoub,Lee, Eunil,Kim, 한국환경보건학회 2015 한국환경보건학회지 Vol.41 No.6
Objectives: In Korea, the system of management of medical waste largely relies on the incineration method. Our study aimed to identify any regional imbalances between the generation and treatment of medical waste, and provide reference data for future policy in Korea. Methods: We analyzed data on the amount of medical waste from 2,000 hospitals in 2012, 2013, and 2014 obtained from the Korea Environment Corporation. In the Arc GIS program (version 10.2.3), the addresses of hospitals and incinerators were transformed into map coordinates. The amount of waste generated by each hospital and the amount incinerated were represented by density and size of a triangle symbol, respectively. Results: As of 2014, the total amount of medical waste from the top 2,000 hospitals was 136,073 tons, out of which about half (49%) was generated in the capital area. Eleven incineration companies (three in the capital area, two in the Chungcheong Provinces area, one in the Jeolla Provinces area, and five in the Gyeongsang Provinces area) treated this waste. For the years 2012, 2013, and 2014, about 60% of the medical waste generated from the hospitals in the capital area was treated within the capital area and about 40% was transported to other areas, especially the Gyeongsang Provinces area, for treatment. On the other hand, about 90% of the medical waste incinerated in the capital area originated from the capital area. Conclusion: Our results suggest a spatial imbalance between the generation and treatment of medical waste in Korea and warrants multilateral policies, including the expansion of on-site treatment, strengthening regulation of the containment of medical wastes, promoting reductions in medical waste and more.
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대학 캠퍼스 주변 호프집, PC방, 당구장의 실내 PM<sub>2.5</sub> 농도를 통한 ETS 노출 수준 평가
이재환 ( Jae Hwan Lee ),박동욱 ( Donguk Park ),하권철 ( Kwonchul Ha ) 한국산업보건학회 (구 한국산업위생학회) 2016 한국산업보건학회지 Vol.26 No.4
Objectives: The aims of this study were to determine the indoor level of environmental tobacco smoke (ETS) and to assess the implementation rate of smoke-free laws at hospitality venues around a university campus by measuring particulate matter smaller than 2.5 ㎛ (PM<sub>2.5</sub>) as an indicator of ETS. Materials and Methods: We measured indoor PM<sub>2.5</sub> concentrations at 20 PC game rooms, 20 pubs, and 20 billiards halls using Sidepak AM510, a direct reading portable real time monitor, from October to December 2015. Results: Smoking was observed in 65% of the PC game rooms, 10% of pubs, and 85% of billiards halls. The average PM<sub>2.5</sub> concentrations were 98.2 ㎍/㎥, 29.0 ㎍/㎥, and 134.2 ㎍/㎥ at PC game rooms, pubs, and billiards halls, respectively. PM<sub>2.5</sub> concentrations in PC game rooms and billiards halls were 2 to 2.7 times higher than the 24-hour exposure standard for outdoor PM<sub>2.5</sub> (50 ㎍/㎥) by the Ministry of Environment. Conclusions: Although a smoking ban has been implemented for PC rooms and pubs, smoking is still taking place in many of these places. More stringent legal action is required for successfully protecting patrons and workers from secondhand smoke exposure. A ban on smoking in billiards halls should be introduced as quickly as possible.
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근골격계 유해요인 조사 보고서 검토를 통한 조사 방법 및 제도 개선 방안
김병훈 ( Byoung Hoon Kim ),박지영 ( Ji Young Park ),백경희 ( Kyunghee Baek ),하권철 ( Kwonchul Ha ) 한국산업보건학회 2021 한국산업보건학회지 Vol.31 No.3
Objective: The objective of this study was to suggest improvement methods for investigations and systems through a review of musculoskeletal risk factor investigation reports conducted in the workplace. Methods: A total of 34 reports on musculoskeletal risk factor investigations were reviewed. To confirm the appropriateness of the evaluation, reevaluation was conducted through a field investigation using other evaluation tools. In order to understand the effectiveness of the improvement plan, a survey was conducted with those in charge of tasks with ergonomic burdens. Results: As a result of performing a field survey using the work sampling method recommended by the KOSHA (Korea Occupational Safety and Health Agency) for ten tasks, eight tasks were determined to pose an ergonomic burden. When 30 tasks were evaluated with RULA (rapid entire body assessment), 90% of them were evaluated at a higher level than the results of the workplace survey. Among the improvement measures, only 36% of the field workers affirmed them, and in only 19% of the workplaces were actual improvements made. Conclusions: In order to improve the ergonomic investigation system for risk factors in the ergonomic burden task, it is necessary to secure the objectivity of the evaluation performed by the institution and enable the active participation of workers in improvement activities.
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