This study was conducted to verify the reliability of volatile organic compounds (VOCs) data derived from Selected Ion Flow Tube-Mass Spectrometers (SIFT-MS) measurements. In the previous study, the measurement reliability was validated using simultaneous measurements by SIFT-MS and gas chromatography-mass spectrometry (GS-MS), but in order to ensure more accuracy, and additional analysis was conducted by diluting standard gases (2 ppm) consisting of 10 types of VOCs mainly measured in industrial complexes (concentrations ranged from 0 to 500 ppb). As a result of 2 experiments, the SIFT-MS showed linearity and produced a coefficient of determination of over 0.99 for all cases. SIFT-MS has secured high measurement reliability, and it is considered to be able to efficiently manage VOCs emitted in industrial complexes.

Yeosu National Industrial Complex is one of Korea’s representative petrochemical industrial complexes where crude oil refining and petrochemical companies are concentrated. According to the results of the 2021 chemical emissions survey, during the process of manufacturing, storage, and transportation at the Yeosu National Industrial Complex, various hazardous chemicals, including hazardous air pollutants, volatile organic compounds and odorous substances are being emitted into the air, affecting the surrounding environment and the health of residents. The Ministry of Environment is applying strengthened standards by designating the Yeosu National Industrial Complex as an air conservation special measure area and establishing odor management areas to manage the air environment. Nevertheless, odor complaints continue to be registered and related complaints increase when turnaround work is carried out. Since air emissions are not counted during periods of turnaround as normal operations are temporarily suspended, it was difficult to establish policies to reduce odor complaints because the source of emissions and emission quantities cannot be ascertained with certainty. In this study, the extensive Yeosu National Industrial Complex was subdivided into 4 areas using a mobile vehicle equipped with PTR-ToF-MS capable of real-time analysis without sample pretreatment being carried out. Measurements were repeated during the day, night, and dawn while moving around the internal boundary of the plant and the boundary of each region where turnaround activities were being carried out. As a result, the recorded measurement for acrylonitrile was the highest at 6340.0 ppb and propyne and propene were measured the most frequently at 128 times each. Based on these results, it will be possible to help reduce emissions through process improvement by efficiently operating air measurement networks and odor surveys that conduct regular measurements throughout the year and providing actual measurement data to the plant. Also, it will help reduce odor complaints and establish systematic air management policies.

We used the measurement data derived from a proton transfer reaction time-offlight mass spectrometry (PTR-ToF-MS) to ascertain the source profile of volatile organic compounds (VOCs) from 4 major industrial classifications which showed the highest emissions from a total of 26 industrial classifications of A industrial complex. Methanol (MOH) was indicated as the highest VOC in the industrial classification of fabricated metal manufacture, and it was followed by dichloromethane (DM), ethanol (EN) and acetaldehyde (AAE). In the industrial classification of printing and recording media, the emission of ethylacetate (EA) and toluene (TOL) were the highest, and were followed by acetone (ACT), ethanol (EN) and acetic acid (AA). TOL, MOH, 2-butanol (MEK) and AAE were measured at high concentrations in the classification of rubber and plastic manufacture. In the classification of sewage, wastewater and manure treatment, TOL was the highest, and it was followed by MOH, H2S, and ethylbenzene (EBZ). In future studies, the source profiles for various industrial classifications which can provide scientific evidence must be completed, and then specified mitigation plans of VOCs for each industrial classification should be established.

This study was carried out in order to provide suggestions with regard to optimal control methods for various odor emission facilities (162 companies and 26 industrial classifications) through comparative analysis of effective odor treatment technologies for each type of odor substance by literature reviews, based on measured 22 odor substance data for 162 samples taken from A city. The industrial classification of Pulp showed the highest odor quotient (7,589 as average value) and was followed by the industrial classifications of Wastewater, Woods, and Furniture, indicating average odor quotient values of 2,361, 1,396 and 1,392, respectively. Absorption using chlorine dioxide and sodium hydroxide can be an optimal treatment method to remove the odor substances of sulfide and aldehyde groups. Biofilers with microbial communities will be effective to remove odors caused by volatile organic compounds (VOCs) and an absorption method using sulfuric acid is proper for the removal of odor substances caused by nitrogens.

본 프로젝트는 최근 사회적 이슈가 되고 있는 미세먼지 저감 숲 조성을 목적으로 진행된 것이다. 대상지는 전라남도 여수 국가산업단지로 부지면적은 32,550,850㎡이다. 매립지이자 중화학공업단지라는 특수한 여건을 고려하여, 여수산단의 녹지조성 가능지 발굴을 포함한 종합적인 저감 숲 조성 마스터플랜 제시를 최종 목표로 한다. 아울러 산단 입주기업의 사업장 내부에 대한 미세먼지 저감녹지 조성에 대한 방안제시도 포함하는 것으로 진행하였다. 연구결과를 요약하면 다음과 같다. 여수 산단지역과 입주기업의 사업장 내부의 조사 분석을 실시하였고. 미세먼지 저감 숲 조성사업의 실현가능성 및 녹지조성 효과 등을 근간으로 하여 크게 3단계 사업권역으로 구분하였다. 그리고 산단 주변의 자연지형 즉 산지 및 녹지를 연계 활용하여 2개의 녹지 보전·형성축을 계획했다. 북측 녹지축은 산단 내부의 산지 및 도로녹지 등을 연계하는 1차 미세먼지 차단축, 남측 녹지축은 여수시가지로 유입되는 미세먼지 차단을 위한 2차 완충기능 목적이다. 미세먼지 저감 숲 조성 마스터플랜은 산단 도로 등 시설배치 및 녹지분포 등 공간구성에 따라 구간 및 유형을 구분하였다. 그 결과 여수 국가산단 전 지역이 총 10개 타입으로 분류되었으며, 각각의 유형에 대해 적용 가능한 미세먼지 저감 숲 및 녹지공간의 조성방법과 식재구조 그리고 저감수종 등을 제시했다. 기본계획은 산단의 도로, 녹지, 구릉지 등 공공영역 즉 사업장 외부공간을 중심으로 수립하였으며, 그 외 사업장 내부 즉 사적영역에 대해서는 입주기업의 여건 및 주변상황에 따라 선택하고 시도할 수 있도록 공간구성 및 식재수종 선정 등 다수의 계획모델을 제시했다.

This study aimed to investigate the characteristics of odor-causing substances in Yeosu national industrial complex, which is designated as an “Odor management Area,” in 2019 and the surrounding area. The sampling sites were divided into three areas: five sites within the industrial complex (Management area), one site within the borders of the complex (Boundary area), and two sites within residential areas (Affected area) affected by odors. The odor compounds were collected from March to September at dawn, daytime, and night. The analytical items were meteorological data, complex odor, legally-designated 22 odor compounds and other VOCs. Complex odor was exceeded on the limit three occasions at two sites in the management area. Ammonia, two types of sulfides, three types of aldehydes, and five VOCs were detected to be within the emission standards. Ammonia was the most frequently detected compounds. Aldehydes and sulfur compounds made a relatively high contribution to the level of odors. Therefore, aldehydes and sulfur compounds should be reduced first in order to prevent odors from occurring.

This study conducted a survey on environmental awareness and analyzed outdoor PM10 and heavy metals (cadmium, lead) for 60 local residents living in the Gwangyang national industrial complex from July 2019. 40.0% of subjects responded that local environmental pollution was serious. Especially, there was a high proportion of residents living near the industrial complex or roads where it was perceived that local environmental pollution was serious. The average concentration of PM10 in the outdoors of the houses was 10.95 μg/m3 and the average concentration of heavy metals in PM10 was 1.90 ng/m3 for Cd and 24.92 ng/m3 for Pb. Overall, the average concentration of PM10 and heavy metals revealed a tendency to be high in the houses located near the industrial complex or the roads. As a result of a risk assessment carried out, the cancer risk of Cd was estimated to exceed 106 in the CTE, RME and Monte Carlo analysis. These results suggest that the urgent implementation of specific environmental health education for local residents is necessary.

The concentrations of odor and volatile organic compound (VOC)-inducing substances were measured using selected ion flow tube mass spectrometers (SIFT-MS). SIFT-MS can continuously measure the concentration of odor-causing substances and VOCs in real time without pre-treatment steps. Measurements were conducted during the day and at night at 10 spots in the chemical block of the Sihwa industrial complex. Similar measurement results were observed in the daytime and nighttime for materials except methyl ethyl ketone with high concentrations. A high concentration of hydrogen sulfide was also measured at night. It is expected that an amount of emissions of VOCs and odor-causing substances under the absence of inspection can be traced if measured at other industrial complexes in vulnerable times.

토지개발로 부터 발생하는 불로소득적 개발이익을 환수하는 개발부담금 제도는 정치적, 경제적 사유 등으로 인하여 한시적 부과중지 및 부과유예, 부과감면, 부과율 조정 등의 과정을 거치면서 정착되어 왔다. 계획입지 및 개별입지에서 시행되는 개발사업으로 부터 발생하는 개발이익을 기준으로 부과율을 적용하여 개발부담금을 부과하고 있다. 계획입지에 의한 개발사업인 산업단지는 국가경제의 발전에 따라 대규모의 중화학공업위주로 조성되었으나 지역적으로 지속적인 미분양의 누적과 노후화 등의 문제점이 발생되고 있고, 신사업육성과 지방경제 활성화 및 혁신기반구축과 같은 산업패러다임의 변화로 인해 새로운 산업분야의 창업과 그를 위해 필요한 인력충원의 조화가 가능한 도시를 중심으로 첨단산업 중심의 소규모 산업단지개발사업으로 변화되고 있다. 산업단지개발사업의 특성으로 인하여 계획적이고 체계적인 개발과 토지가격 안정 및 분양가격 결정에 관한 사항을 별도로 규정하고 있다. 특히 분양가격을 결정하는 경우 적정이윤을 제한하도록 제도화 되었다. 그로인해 산업단지개발사업 실시계획승인일 이후 분양가 산정시 결정되는 적정이윤과 준공인가일 이후 개발부담금을 산출기준이 되는 개발이익은 그 적용기준에서 차이를 보이고 있어 이에 대한 연구가 필요해 보인다. 개발부담금 제도상의 개발이익은 토지로부터 발생하는 지가차이에 의한 미실현 개발이익을 확인하여 조세적 성격인 개발 부담금을 부과하는 것이므로 부과권자와 납부의무자 모두에게 개발이익산출의 정확성과 객관적 기준을 규정하는 것은 반듯이 필요한 측면이 있다. 그러나 산업단지개발사업은 국가 또는 시·도의 조례로 적정이윤율을 규정하여 분양시 자본비용 등을 공제한 조성원 가에 규정된 적정이윤율을 적용하여 분양가를 결정하고 있다. 즉 분양시 적용되는 적정이 윤은 처분가와 조성원가를 기준으로 실질적이익을 담보하여 분양가를 결정하는 실현이익이 되는 것이다. 따라서 현재 산업단지개발사업의 실시계획승인일과 준공인가일의 기간 동안의 지가차이를 기준으로 산출되는 개발이익과 실현이익을 기준으로 적정이윤율을 적용하여 산출된 이익을 적용하여 개발부담금을 부과하는 방안을 연구하므로써 실질적 개발이익을 기준으로 개발부담금을 환수할 수 있는 방안을 모색할 수 있을 것이다.

본 연구에서는 특별관리해역인 시화호 유역의 산업단지 하천에 강우 시 비점오염의 형태로 유입되는 중금속의 유출 특성 파악 및 오염원 파악을 하천 토구를 통해 배출되는 강우유출수 내 용존 및 입자성 중금속 (Cr, Co, Ni, Cu, Zn, As, Cd, Pb)을 조사하였다. 용존성 Co와 Ni은 강우 초반에 고농도로 유출된 후 시간에 따라 감소하는 결과를 보였으나, 대부분의 원소는 조사시기별 강우량 및 유량 변화에 따라 각각 다른 특징을 보였다. 입자성 중금속의 경우, 시간에 따른 부유물질의 농도 변화와 유사한 경향을 보였다. 강우유출수 내 존재하는 중금속 중 Co, Ni, Zn는 용존 상태로 유출되는 비율이 높았고, Cr, Cu, Pb은 입자상 유출 비율이 상대적으로 높았다. 입자 상태로 유출되는 중금속의 인위적 오염도를 평가하기 위해 농집지수를 계산한 결과, Cu, Zn, Cd은 very highly polluted에 해당하는 심각한 오염수준으로 나타났다. 연구지역인 3간선수로 유역 인근의 도로먼지 중 125 μm 이하에서의 중금속 농도와 비교한 결과, 강우유출수 내 Cu, Zn, Cd의 중금속이 금속제조관련 시설에서 절삭 혹은 가공 중에 발생하여 산업시설 표면에 축적되어 있는 금속물질이 강우유출수와 함께 수환경으로 유출된 것을 알 수 있었다. 강우유출수 내 총중금속 평균 유출부하량은 1회 강우 시 Cr 128g, Co 12.35 g, Ni 98.5 g, Cu 607.5 g, Zn 8,429.5 g, As 6.95 g, Cd 3.7 g, Pb 251.75 g으로 금속제조와 관련된 산업시설이 주로 존재하는 유역의 특성을 잘 반영한 것으로 판단된다

In this study, real-time monitoring of air quality using a real-time mobile monitoring system was conducted to identify the emission characteristics and current status of air pollutants and odorous substances that are mainly generated in domestic dyeing industrial areas and to trace the pollutant sources. The concentration of toluene in the industrial area was detected up to 926.4 ppb, which was 3 to 4 times higher than that of other industrial areas. The concentration of methylethylketone was 124.7 ppb and the concentration of dichloromethane was 129.5 ppb. Acrolein concentration was highest at E point at 521.6 ppb, methanol concentration was highest at D point at 208.8 ppb, and acetone concentration was highest at M and N points at 549.3 ppb. The most frequently detected concentration of pollutants in the air quality monitoring results in the industrial area was, in descending order, toluene > methanol > acrolein > dichloromethane > acetone, which was similar to the chemical emissions used in the industrial area by the Pollutant Release and Transfer Register data. The concentration of odorous substances measured in real time was compared with the concentration of minimum detection, and the concentration of hydrogen sulfide was about 10 times higher than the concentration of minimum detection at A point, which was judged to be the main odorous cause of A point. In the future, if the real-time mobile measurement system is constructed to automatically connect wind direction/wind speed, PRTR (Pollutant Release and Transfer Register) data and SEMS (Stack Emission Management System) data, etc., it was judged that more accurate monitoring could be performed.

In this study, the grid field olfactory odor method was supplemented to the domestic situation in the surrounding areas of a domestic science industrial complex. The actual condition of the occurrence of odor frequency in the field was then investigated over the first period of late spring to summer and the second period of autumn in 2017. The frequency of odor occurrence in the area around the science industrial complex was increased as odor discharge facilities in the nearby area were concentrated. The odor occurrence frequency of the total period was 0.09~0.28, that of the first period was 0.08~0.32, and that of the second period was 0.05~0.25. The odor occurrence frequency in summer was higher than in autumn. The frequency by which the measurement of odor occurrence by smell type was most dominant was mainly smell of chemicals, plastics, and livestock houses during the first period, and the smell of chemicals, burning gases, and plastics during the second period. And the frequency of each smell type was judged to be different according to season. The odor occurrence frequency was measured as higher than 0.15, which is the standard of Germany's odor frequency in an industrial area, and it was judged that measures for odor management in the region were necessary. Since most of the odor discharge facilities are non-continuous systems and the odor generation frequency is more important than the concentration of the minimum detection concentration, it was judged that the German grid method can reflect the odor occurrence characteristics of the odor complaints or receptors for a certain period of time compared to the domestic measurement method. In the future, it was judged that the field olfactory odor method would be able to replace the evaluation method of odor assessment in Korea with the survey method of odor assessment under actual conditions in areas where it is difficult to access the odor discharge source or the receptor where odor complaints occur.

More than 80,000 prisoners in state, federal, and private prisons work for private and for-profit industries in the United States, which is a relatively small, but rapidly growing, portion of the total number of incarcerated individuals. The main purpose of this article is to use critical concepts from Foucauldian theory to explore the relationship between incarceration and labor exploitation in the U.S. prison system. To do this, this article reviews the core Foucauldian concepts and assumptions that are relevant to explaining prison labor; applies those concepts and assumptions to the prison labor issue; and discusses a possible way for conducting an empirical study. Additionally, three implications for social work, policy intervention, and the Korean society in reference to the theory are discussed. This article suggests that understanding Foucault should be a priority to tackle forced control, unequal power, and the immobility of social and economic status embedded in the most marginalized and vulnerable populations.

This study aims to evaluate the concentration of biomarkers for heavy metals and volatile organic compounds (VOCs) for the residents living in the Gwangyang industrial complex to compare with residents in the residential area as a control. A total of 810 healthy adults participated in this study, and their urinary and blood samples were analyzed for metals, including As, Pb, Cd, or Hg, and VOC compounds. All study participants also completed questionnaire surveys to collect more detailed information on personal lifestyles, dietary and drinking habits, residential housings types, and their health conditions. The geometric means of urinary levels of Cd were 1.06 g/g creatinine for those living in the vicinity of Gwangyang industrial complex and 1.41 g/g creatinine for those in residential areas (p<0.05). Furthermore, urinary mean levels of Hg were 1.39 μg/g creatinine in the industrial area and 1.23 μg/g creatinine in the control area, respectively. The concentrations of individual VOCs in blood were significantly different between the two population groups. Therefore, urinary levels of Cd and Hg were significantly higher in the local residents compared to the Gwangyang industrial areas. A further study is needed to identify adverse health effects due to environmental exposures to heavy metals, VOCs, and other pollutants in the Gwangyang industrial complex areas in the future.

Heavy metals in stream water and sediments around industrial complex were studied in order to assess the contamination and to identify the potential source of metals. High variability has been observed for both dissolved and particulate phases in stream water with coefficient of variation (CV) ranging from 1.3 to 2.8. The highest metal concentrations in both phases were observed in Gunja for Ni and Cu, in Jungwang for Zn and Pb and in Shiheung for Cd, respectively. These results indicate that the different metal sources could be existing. The concentrations of the heavy metals in sediments decreased in the order of Cu>Zn>Pb>Cr>Ni>As>Cd>Hg, with mean of 2,549, 1,742, 808, 539, 163, 17.1, 5.8, 0.07 mg kg-1, respectively. Mean of metal concentrations (except for As) in sediments showed the highest values at Shiheung stream comparing with other streams. In sediments, the percent exceedance of class II grade that metal may potentially harmful impact on benthic organism for Cr, Ni, Cu, Zn, Cd, Pb was about 57%, 62%, 84%, 60%, 68%, 81% for all stream sediments, respectively. Sediments were classified as heavily to extremely polluted for Cu and Cd, heavily polluted for Zn and Pb, based on the calculation of Igeo value. About 59% and 35% of sediments were in the categories of “poor” and “very poor” pollution status for heavy metals. Given the high metal concentrations, industrial wastes and effluents, having high concentrations of most metals originated from the manufacture and use of metal products in this region, might be discharged into the stream through sewer outlet. The streams receive significant amounts of industrial waste from the industrial facilities which is characterized by light industrial complexes of approximately 17,000 facilities. Thus, the transport of metal loads through streams is an important pathway for metal pollution in Shihwa Lake.

환경오염원으로부터 지역별 솔잎혹파리 피해도의 차이를 조사하기 위하여 실시한 결과, 솔잎혹파리 충영형성율은 석유화학공단에 의한 환 경오염이 심각한 상황에 있는 공단지역은 충영형성률 47.94%이었고, 대조지역은 9.94%였다. 솔잎혹파리 피해엽은 공단지역 피해엽의 길이는 평균 4.5 cm 였으며, 대조지역은 평균 4.9 cm 이었다. 솔잎혹파리 피해엽의 충영내 유충의 수는 공단지역은 평균 3.4개체이었고, 대조지역은 2.4개체 이 었다. 성숙유충의 크기는 공단지역이 유충체장은 2.40 mm, 체폭은 0.7 mm 이었으며, 대조지역의 유충체장은 2.45 mm, 체폭은 0.71 mm 이었다.

The buffer green space of Sihwa industrial complex is located on the boundary of residential areas and industrial areas, and this regions have been the ability to mitigate environmental impact of noise, vibration, atmospheric. In this area, the survey of vegetation and bird was conducted to understand the biology structures and function of buffer green space from biology habitats and natural recovery for ecology restoration. The survey was performed four times according to the season. As a result, vegetation were distributed to the most widely Pinus thunbergii community (72.2%) in the whole survey area (approximately 0.32 km2), and grasslands (6.6%), Amorpha fruticosa community (4.1%), Koelreuteria paniculata community (4.0%), Acer buergerianum community (3.9%) in the order of distribution. The characteristics of vegetation distribution were mainly planted Pinus thunbergii in outlying areas, and Koelreuteria paniculata, Acer buergerianum, Sophora japonica, Quercus acutissima were planted in the middle areas. The birds observed in this area were a total of 37 species, 912 individuals, the species of legal protection were observed Falco tinnunculus 1 individuals. The most of birds observed in this area were the resident that can be observed easily in the park and greenland surrounding urban. The waterfowl almost were not observed because of lacking water space. Thus, as providing safe habitats and movement passageway of wildlife, the connection of ecological green areas will be strengthened.