This study was conducted to investigate the influence of moisture removal using a moisture condensation tube on the odor concentration, when sampling a malodorous substance from an odor discharge facility’s emission sites. For high-temperature and humid gas streams, the odor concentration was decreased through the use of a moisture condensation tube. The multiple odor concentration of the high-temperature and humid gas streams emitted from boiler-burning equipment decreased from a 3,000 to a 1,221 dilution factor when using one or two moisture condensation tube. This multiple odor concentration was further decreased to a 1,000 dilution factor by using two moisture condensation tubes and glass beads, and also was decreased to a 374 dilution factor by using two moisture condensation tubes and silicagel. Among the designated offensive odorous substances, ammonia, trimethylamine and acetaldehyde that have high solubility in water showed high reduction rate of their concentration. Compared to the result using a sampling tube only, the concentration was decreased by 94.8% ~ 97.7% for ammonia, by 87.5% ~ 95.9% for trimethylamine and by 100% for acetaldehyde. The findings of this study indicate that sampling using a moisture condensation tube affects the concentration of multiple odors. Therefore, it is considered that using a sampling tube only for emissions sampling enhances analytical accuracy and precision rather than using moisture condensation tube with sampling tube, even for the emissions containing moisture.

The efficiency of using 7 indoor plants, which were Chrysalidocarpus lutescens, Ficus robusta, Sansevienria trifasciata, Rhapis excelsa, Scindapusus aureus, Anthurium andraeanum and Pachira aquatica, for B·T·E (Benzene, Toluene, Ethylbenzene) removal were assessed at 1200 Lux light intensity in airtight chambers (1.27 m3). Rhapis excelsa, Chrysalidocarpus lutescens and Ficus robusta were among the most effective plants, completely removing for B·T·E within 38 hours, wherease Scindapusus aureus and Sansevienria trifasciata were the lowest in terms of removal efficiency. But when the removal efficiency was measured per unit leaf area (μg·m−3·−2), it was found that Scindapusus aureus, Anthurium andraeanum and Sansevienria trifasciata removed higher amount than Rhapis excelsa, Chrysalidocarpus lutescens and Ficus robusta. Plants with wide leaves and a big leaf area including Rhapis excelsa and Chrysalidocarpus lutescens showed higher removal efficiencies of B·T·E than those with smaller leaves such as Scindapusus aureus. Among the plants tested over 120 hours, the species that emitted the highest levels of CO2, involved with photosynthesis and respiration in plants, Pachira aquatica (11,560 ppm) was emitting 10 times more CO2 than Scindapusus aureus (1,260 ppm).

In this study was analyzed substances that high contribute to odor strength degree which emitted from the painting, the plating, the casting, the rubber manufacturing, and the used oil refining facilities in Gwangju Hanam industrial complex. In order to this, we analyzed two types of nitrogen compounds, five types of sulfur compounds, thirteen types of the aldehyde, and ten types of volatile organic compounds discharged from an outlet for antipollution facilities. The results are as following high contribution rate sustances to odor strenth was ordered butylaldehyde (73.8%) ＞ acetaldehyde (17.7%) ＞ propionaldehyde (4.9%) at painting facilities. At plating facilities, it was ordered Acetaldehyde (59.0%) ＞ ammonia (19.1) ＞ hydrogen sulfide (13.1%). At casting facilities, it was ordered Hydrogen sulfide (65.9%) ＞ acetaldehyde (17.2%) ＞ sulfur dioxide(5.2%). At rubber manufacturing facilities, it was ordered i-valeraldehyde (35.0%) ＞ butylaldehyde (32.0%) ＞ n-valeraldehyde (13.3%) and at used oil refinery facilities, it was ordered Acetaldehyde (36.8%)＞ butylaldehyde (33.6%) ＞ sulfur dioxide (14.5%).

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.

일부 지역의 일반인을 대상으로 대체요법에 대한 개인적 인식 정도와 이용경험을 파악하여 대체요법 의 효율적 이용 방안을 연구하고 대체요법의 발전을 모색하는데 그 목적을 두고 본 연구를 시행하였다. 본 연구를 시행하기 위해 전남의 일부 지역 성인의 일반인을 연구자의 편의에 의해 선정하여 300명 을 대상으로 설문조사를 실시하였다. 본 연구를 통하여, 첫째, 대체요법에 대한 지식 정도는 설문에 응답한 응답자 중 ‘약간 안다’ 44.4%였다. 둘째, 대체요법의 ‘이용 경험은 있다.’는 응답자가 22.6%로 매우 낮았으나 이는 설문에 앞서 대체요법 의 범주를 제시하지 않아 대체요법에 대한 용어의 이해 정도가 낮은 이유로 보여 진다. 셋째, 248명의 응답자 중 166명이 대체요법을 이용하고 있다고 응답했다. 이는 대체요법의 범주를 미 리 제시하지 않아 대체요법의 범주에 대한 이해의 차이로 해석되어지며 본 질문 사항에서 대체요법의 범주를 이해한 것으로 보여 진다. 넷째, 연구대상자들이 가장 교육받고 싶은 요법으로 남자는 대체요법을 교육받고 싶은 1순위에 41명 이 침술(수지침, 사혈 등)을 교육받고 싶어 했고, 여자는 대체요법을 교육받고 싶은 1순위에 20명이 요 가를 교육받고 싶어 하였다. 따라서 대체요법 교육에 있어 남녀의 특성을 고려하여 교육을 시킬 때 더욱 효과적이 될 것임을 알 수 있었다. 대체요법에 대한 종류와 그 효능을 입증 할 수 있는 연구와 더불어 체계적인 홍보와 교육에 있어 적 극적인 노력이 필요하다고 사료된다.