The concentrations of volatile organic compounds (VOCs) and odor-inducing substances were measured using selected ion flow tube mass spectrometers (SIFT-MS) and a drone equipped with an air quality monitoring system. SIFT-MS can continuously measure the concentration of VOCs and odor-inducing substances in realtime without any pre-treating steps for the sample. The vehicle with SIFT-MS was used for real-time measurement of VOC concentration at the site boundaries of pollution sources. It is possible to directly analyze VOCs concentration generated at the outlets by capturing air from the pollution sources with a drone. VOCs concentrations of nine spots from Banwol National Industrial Complex were measured by a vehicle equipped with SIFT-MS and were compared with the background concentration measured inside the Metropolitan Air Quality Management Office. In three out of the nine spots, the concentration of toluene, xylene, hydrogen sulfide, and methyl ethyl ketone was shown to be much higher than the background concentration. The VOCs concentrations obtained using drones for high-concentration suspected areas showed similar tendencies as those measured using the vehicle with SIFTMS at the site boundary. We showed that if both the drone and real-time air quality monitoring equipment are used to measure VOCs concentration, it is possible to identify the pollutant sources at the industrial complex quickly and efficiently check sites with high concentrations of VOCs.

Two sewage treatment facilities were selected to identify odor emission characteristics, focusing on volatile organic compounds (VOCs) and sulfur compounds. The complex odor, 5 kinds of sulfur compounds and 23 kinds of VOCs were analyzed from gas and sludge storages. Hydrogen sulfide was detected in the highest concentration and had the highest odor quotient among the odorous compounds monitored in this study, demonstrating that the contribution of hydrogen sulfide to the complex odor reached up to 90%. For VOCs, the overall contribution to the complex odor was not critical but VOCs can sufficiently trigger an odorous sensation because the sum of the odor quotient reached up to 2.89.

술의 향미에 영향을 미치는 휘발성분에 관하여 진도홍주의 보존중 그 함량 변화를 검토한 결과는 다음과 같다. Ethanol과 total acid 함량은 보존중 감소현상을 나타내었고, 휘발성분의 함량은 acetaldehyde, fusel oil, acetate, furfural, methanol 순으로 나타났는데 1년 경과 후 methanol은 검출되지 않았고 furfural을 제외한 다른 성분은 증가하는 경향을 보였다. 2년 경과 후에는 acetaldehyde는 21.4~58.4 mg%로 1년 경과 후와 비슷한 수준이었으며 n-propanol, 2-methyl-1-propanol, 2-methyl-1-butanol이 주성분을 이루는 fusel oil은 감소현상을 나타내어 0.71~1.03 mg/ml 함량을 보였다. Acetate는 계속 증가현상을 보여 0.24~0.52 mg/ml로서 초기 함량보다 4~6배 증가하였으며 furfural은 0.01~0.02 mg/ml로 감소하였다.

The volatile aromatic substances from Cinnamomum camphora and C. japonicum among warm-temperate tree species were examined for the physiological and psychological effects on the human body. Each scent of the trees was provided to the test materials. And then their brain wave, pulse rate, aroma sensibility evaluation and POMS were measured as follows. To examine psychological effect of aroma of each tree species on human bodies, aroma sensibility evaluation and POMS were conducted. The result reveals that the aroma of the two tree species were interpreted in terms of comfort, naturalness and stimuli, and that C. camphora shows low level of satisfaction due to strong aroma while C. japonicum is more preferred due to its soft and fragrant aroma. As well, POMS was given to identify subjects' temporary emotional state. The result indicates that C. camphora has higher values in every item than C. japonicum, and that both tree species repress anxiety and depression and create vivacious feelings with higher values in [vivacity] and [anger-hostility] items than [tense-anxiety] and [distress-depression]. To examine the physiological effect of aroma of each tree species, aroma extracted from the two tree species were distributed, and the subjects' brain wave and impulse were measured. The result demonstrates that C. camphor has relaxing effect of increasing α-wave and reducing pulse, and that C. japonicum also has relaxing effect, but the effect is less than that of C. camphora as it reduces pulse though it slightly reduces α-wave. In addition, individual preferences for C. camphora vary as it has big individual deviations vary, but C. japonicum has similar level of preference as its variances are small. The natural and pleasant aroma of these two tree species seem to have tranquilizing effect in both the physiological and psychological aspects and are found to have positive effects of feeling refreshed, feeling enhanced, and so on. In conclusion, there is a sufficient possibility of developing these two aromatic warm-temperate tree species. Also, the importance of such difference between these two tree species lies in the fact that they can set standards for the utilization of warm-temperate forest in the future.

참당귀와 일당귀의 수용추출액과 휘발성물질이 식물의 종자발아와 유묘생장에 미치는 영향을 알아보기 위하여 실험실 실험을 실시하였다. 참당귀의 수용추출액에 의한 참당귀의 종자발아율은 농도가 증가함에 따라 증가하였고 일당귀는 추출액의 농도증가에 따라 감소하였다. 일당귀의 수용추출액에 의해서는 참당귀와 일당귀의 종자발아가 억제되었다. 참당귀의 수용추출액에 의한 참당귀와 일당귀의 유묘생장은 10%농도에서는 대조구보다 높았으나 50%와 100% 농도에서는 농도증가에 따라 비례적으로 감소하였고, 일당귀의 추출액에 의한 참당귀와 일당귀의 유묘생장은 수용추출액의 농도가 증가함에 따라 뚜렷한 억제효과를 보였다. 참당귀와 일당귀의 휘발성물질에 의해서 상추의 종자발아는 전혀 영향을 받지 않았다. 참당귀와 일당귀의 휘발성물질로 처리한 경우, 대조구에 비하여 실험구의 상추의 유근신장이 억제되었지만 농도에 따른 변화는 보이지 않았다.

목초액을 천연보존료로 이용하기 위하여 기계식전용 탄화로에서 제조된 목초액을 대상으로 이화적인 특성 및 휘발성분의 함량을 분석하여 다음과 같은 결과를 얻었다. 목초액은 pH, 비중, 산도, 굴절률, 투과률은 각각 2.40, 1.020, , , 이었고, 용해타르 및 작열잔사는 각각 이었다. 한편 무기성분은 Al 0.11, Cu 4.13, Fe 2.92, Mn 0.15, Zn 4.37, Ca 3.49, K 5.89, Mg 0.43, Na 6.88 mg