목포시 도시근린공원에서 Well-being을 위한 대기환경 특성

임항선 ( Hang-seon Lim ),이정일 ( Jeong-il Lee ),박찬오 ( Chan-o Park ),박종수 ( Jong-soo Park ),정경모 ( Kung-mo Jung ),양수인 ( Soo-in Yang ) 한국환경기술학회 2015 한국환경기술학회지 Vol.16 No.4

본 연구는 목포시 도시근린공원 입암산과 양을산을 선정하여 피톤치드(11종), 음이온, 미세먼지, 총부유세균, 가스상 성분을 측정하였고, 동시간대 대기오염측정소 결과를 비교 분석하여 숲 기능의 장점을 찾아보고자 하였다. 피톤치드는 숲속에서 측정했던 평균농도는 797.5 ~ 986.4 pptv였고, 2시간 산책하면서 측정했던 평균농도는 382.1 ~ 415.7 pptv로 나타났다. 음이온은 바닷가에 위치 입암산공원이 양을산 보다 더 높게 나타났으며, 도시지역과 공지역이 낮게 나타났다. 가스상 물질인 질소산화물은 출근 시간대인 오전 7~10시에 높게 나타났으며원지역을 비교한 총부유세균과 PM-10은 도시지역에 비해 공원, 오존은 도시지역과 공원지역의 농도 차이가 없었으며 시간대별 오존농도는 정오경에 가장 높은 농도를 나타냈다. The study was carried out to investigate the concentration distribution of phytoncides, PM-10, anion, total suspended bacteria, nitrogen oxide and ozone on the air quality of Yangeulsan and Ibamsan urban-area parks on Mokpo city. In phytoncides, the mean value measured in each site showed 797.5 ~ 986.4 pptv in case of measuring air quality at position fixed in specific spot and 382.1 ~ 415.7 pptv in case of mobile measurement for air quality taking a walk during two hours. In anion, it showed that Ibamsan located near by sea was higher than Yangeulsan located near city`s center. In PM-10 and total suspended bacteria, the concentration measured in two urban-area parks was lower than that of city area. In NOx concentration of gaseous material was highest in the morning rush hours 7 to 10 o`clock. In ozone concenration, there was no difference of air quality between urban area parks and city area, while ozone concentration was the highest value in noon when UV rays were the strongest.

구례 행복마을 한옥의 공기질 특성

임항선 ( Hang-seon Lim ),김익산 ( Ik-san Kim ),안길원 ( Kil-won Ahn ),이해훈 ( Hae-hoon Lee ),박종수 ( Jong-soo Park ),양수인 ( Soo-in Yang ) 한국환경기술학회 2016 한국환경기술학회지 Vol.17 No.2

본 연구는 지리산을 중심으로 형성된 행복마을 한옥의 공기질 특성과 우수성을 찾아보고자 실내공기질의 충족 여부를 파악하기 위해 폼알데하이드, 부유세균, 이산화탄소, 라돈의 측정과 음이온, 피톤치드(19종)를 분석하였고 대조군으로 양옥 및 아파트와 비교하고 한옥의 공기질에 대한 자료로 제공하기 위해 실시하였다. 한옥에서 폼알데하이드는 18.5 μg/㎥ ∼ 41.6 μg/㎥(실내공기질 유지기준 100 μg/㎥), 총부유세균은 109 CFU/㎥ ∼ 237 CFU/㎥(실내공기질 유지기준 800 CFU/㎥)로 매우 양호한 상태를 보였고, 피로와 스트레스 해소 등에 좋은 것으로 알려진 음이온의 경우는 한옥 바깥 에서 65 개/cc ∼ 806 개/cc인 것과 비교하여 내부에서는 337 개/cc ∼ 2,611 개/cc였다. 5개 지점의 한옥 피톤치드 평균은 3,705 pptv, 아파트 1,639 pptv, 양옥 868 pptv이고 한옥에서는 아파트, 양옥 보다 2.3 ~ 4.3배 정도가 더 높게 나타났다. 19종의 피톤치드 성상 중 α-pinene, β-pinene이 한옥에서는 65%, 양옥과 아파트는 54%, 34.5%로 주종을 이루였다. 연구결과 한옥이 웰빙에 좋은 주거공간임을 알 수 있었다. This study was carried out to investigate distribution characteristics of phytoncides, formaldehyde, total airborne bacteria, carbon dioxide, radon and anion on the air quality of indoor and outdoor of Korean-style house on Jirisan area. Concentration of formaldehyde of the air quality on indoor of Korean-style house were 18.5 μg/㎥ ∼ 41.6 μg/㎥, total airborne bacteria were 109 CFU/㎥ ∼ 237 CFU/㎥. In the case of Korean-style house, the indoor anion concentrations were 337 ea/cc ∼ 2,611 ea/cc anion while the outdoor anion concentrations 65 ea/cc ∼ 806 ea/cc. Average concentration of phytoncides of Korean-style house was 3,705 pptv. It was higher than those of apartment 1,639 pptv and western house 868 pptv. The rate of α-pienene and β-pienene, two components of 19 phytoncides, were 65% in Korean-style house, 54% in western house, 34.5% in Apartment. The result of the study, life of Korean-style house could know that they were in well-being place.

영산강 수계 TOC, COD/BOD 특성

오은하 ( Eun Ha Oh ),임항선 ( Hang Seon Lim ),안길원 ( Gil Won Ahn ),이해훈 ( Hae Hun Lee ),박종수 ( Jong Soo Park ),양수인 ( Su In Yang ) 한국환경분석학회 2015 환경분석과 독성보건 Vol.18 No.1

The samples was collected once a month for eleven months in the year of 2013 from the different locations of the Youngsan River basin. The organic material BOD and COD/TOC was measured from the six to nine different sites of water samples of lake water, branch stream and main stream of the river, and discharged water from public sewage treatment plants. The purpose of this research was to monitor the changes of those characteristics and distribution ratios. In the lake average COD/TOC was as high as 1.95 ± 0.08, and coefficient of correlation of TOC about COD was also as high as 0.894. This result shows that the environmental standards for TOC are in need of enhancement. In the branch and main stream of the river water average concentration of COD was high and the average of COD/TOC was also high in both the branch stream (2.07 ± 0.08) and the main stream (2.28 ± 0.13). This result shows that a necessary step of management was needed against nondegradable organic materials in the Youngsan River. In the discharged water from public sewage treatment plants the average of COD/TOC was as high as 1.84 ± 0.09, and coefficient of correlation of TOC about COD was also as high as 0.789. Thus, the current COD standard can apply to TOC standard. We can start with the half of the existing COD reference value of discharged water in public sewage treatment plant as TOC reference value, which can be used as an alternative indicator of COD.

「가고 싶은 섬」의 갯벌과 토양환경 특성 (Ⅱ) - 손죽도, 장도, 생일도, 기점·소악도를 중심으로 -

배주순 ( Bae Ju-soon ),임항선 ( Lim Hang-seon ),안길원 ( An Gil-won ),서윤규 ( Seo Yun-gyu ),김경수 ( Kim Gyeong-soo ),박귀환 ( Park Gui-hwan ) 한국도서(섬)학회 2018 韓國島嶼硏究 Vol.30 No.1

Jeollanam-do has implemented the brand policy to create “Islands that people hope to visit” by cultivating marine resources such as islands. This study investigated the characteristics of the natural environment in four islands Island that people hope to visit”. The contents of germanium and selenium, which are trace minerals in the soils and tidal flat, were examined and the relationship between the content of crops and sea foods was investigated. The study also investigated the artificial influence in soil of islands. This study was mainly performed in Yeosu Sonjukdo, Boseong Jangdo, Wando Saengildo and Shinan Gijeom·Soakdo. As studied materials, germanium and selenium were analyzed by ICP/MS using hydrogen generation method. The artificial pollution of soil was analyzed by soil contamination process test standards. The content of germanium was 0.361 ∼ 2.420 mg/kg in the soils and tidal flats of “Islands that people hope to visit” and the highest concentration was observed in Yeosu Sonjukdo at 2.097 mg/kg in soils and 1.608 mg/kg in tidal flats, on average. The germanium content of crops and sea foods was the highest at 34.904 ㎍/kg in Jangdo Tegillarca granosa. The content of selenium was 0.013 ∼ 0.941 mg/kg in the “Islands that people hope to visit” area, the highest average concentration of soils was 0.409 mg/kg in Gijeom·Soakdo and the highest average concentration of tidal flats was 0.081 mg/kg in Jangdo. The contents of selenium in crops and sea foods were detected at 720.50 ㎍/kg in Tegillarca granosa of Jangdo, and 582.69 ㎍/kg in small octopus of Gijeom·Soakdo, and 396.11 ㎍/kg in small octopus of Jangdo. The content of Tegillarca granosa and small octopus showed very high concentration, but were found to be safe because they did not exceed adults appropriate intake per day. The artificial pollution in soil of Islands that people hope to visit” showed that the harmful substances were detected below the background concentration of the soil, and the island area showed very clean soil condition that has not yet been contaminated.

전자산화 공법을 이용한 축산폐수 처리에 관한 연구

이성기 ( Seong Key Lee ),송영일 ( Young Il Song ),김현중 ( Hyun Jung Kim ),임항선 ( Hang Seon Lim ),서광엽 ( Gwang Yeob Seo ),이인호 ( In Ho Lee ) 한국수처리학회 2004 한국수처리학회지 Vol.12 No.3

This study that do single cathode discharge structure electron generating device and do electron generating device with high voltage high frequency pulse corona with do electromagnetism wave device batch type experiment of synthetic wastewater and swine wastewater. The results are as follows. Appeared higher than Run A and Run C in temperature and pH change Run B reaction end 10 day in an experiment do single cathode discharge structure electron generating device batch. Run A pH change decreased by effect of created hydrogen peroxide as reaction is proceeded. Run B pH upward tendency is impact of hydroxides that is reaction product with free electron and water by that form electron generating device. In COD of Run B and Run C, T-N, T-P removal comparison Run B 15 - 20% higher appear . Run B COD, T-N, T-P removal on reaction 5day all items most High removal efficiency see . COD removal could raise removal efficiency to 88% to reaction 3day in occasion of sample of that concentration such as synthetic wastewater in an experiment do electron generating device with high voltage high frequency pulse corona. A large amount of electron and T-N removal that use radical of method confirmed that need reaction condition of reaction 4 - 5 day with synthetic wastewater and swine wastewater raising sample total high voltage pulse corona that use sample of 100i. Reaction 5day, T-N removal were seen 42.2% and 38.6% each. It is not good quality by method with high voltage high frequency pulse corona but a large amount of electron and radical did not influence to T-P removal. Result appeared that do not influence in organic matter and nutrient removal by an electromagnetic wave device producer singleness experiment.

도시 환경소음 특성조사를 통한 생활환경 개선

남지현 ( Ji-hyeon Nam ),배주순 ( Ju-soon Bae ),이소영 ( So-young Lee ),김인열 ( In-yeol Kim ),김도훈 ( Do-hoon Kim ),신주도 ( Joo-do Shin ),임항선 ( Hang-seon Lim ) 한국환경기술학회 2024 한국환경기술학회지 Vol.25 No.3

In modern society, urban noise problems are becoming incrreasingly serious due to industrialization and urbanization. The government is operating a passive environmental noise measurement network in accordance with the “Environmental Noise Measurement Network Operation Guidelines” to determine the noise status. Since the noise sources are diversified due to urbanization and each of them has specific characteristics, it is necessary to observe the perceived noise level through frequency and Traffic Noise Index (TNI) analysis, as well as quantitative evaluation such as environmental noise verification of the source. In this study, noise levels were measured a total of six times during the day and night semiannually in Gwangyang and Suncheon cities in Jeollanam-do, and frequency and TNI analysis was conducted for the areas that exceeded the standards. The results are as follows. Gwangyang City showed an excess rate of 0.8 to 14.3% compared to the noise standard in school areas and general residential areas, and showed high noise levels in the high-frequency area near 1 kHz due to the influence of traffic. Among roadside points in school areas and general residential areas, 83.3% of all points showed TNI index exceeding 74. Suncheon City showed an exceedance rate of 2.7 to 17.8% in green areas, and showed high noise levels at high frequencies around 1 kHz and around 250 Hz due to the influence of vehicles and motorcycles. Additionally, the TNI index of green areas exceeded 74 in all time zones except midnight. We expect that the results of this study can be used as basic data for improving measurement network operation and establishing noise reduction measures in the future.

여수국가산단 및 주변지역 악취발생 원인조사

송승리 ( Seung-ri Song ),오길영 ( Gil-young Oh ),서윤규 ( Yun-gyu Seo ),김계홍 ( Gye-hong Kim ),김현재 ( Hyun-jae Kim ),김인열 ( In-yeol Kim ),임항선 ( Hang-seon Lim ),안양준 ( Yang-jun An ),박귀환 ( Gwi-hwan Park ),박종수 ( Jong- 한국환경기술학회 2021 한국환경기술학회지 Vol.22 No.6

The purpose of this study is to understand the current status and cause of the distribution of odor substances in the Yeosu National Industrial Complex and its surrounding areas. Samples were analyzed by collecting 90 samples at dawn, daytime and night from a total of 15 points, 9 points in the management area, 2 points in the boundary area, and 4 points in the affected area. The analysis items include 5 meteorological factors, complex odor, 22 types of the designated odors and other Volatile Organic Compounds (VOCs). At the MA3 (Fig. 1) point in the management area, the strict emission allowance standard for complex odors was exceeded three times, Ammonia, two types of sulfur compounds, two types of aldehydes, and six types of VOCs were detected, but they were within the standard. As a result of by calculating the odor contribution, the contribution of 74.9 % or more was found at the point where butyraldehyde was detected. Therefore, in order to prevent odors at the Yeosu Industrial Complex, measures to reduce aldehydes with high odor contribution should be prioritized, and it is necessary to simultaneously investigate through real-time harmful atmospheric measurement vehicles. Based on the contents presented in this study, if the system and policies reflecting the results of the odor occurrence survey of Yeosu National Industrial Complex and surrounding areas are supplemented, the odor environment of Yeosu National Industrial Complex will be sufficiently improved.