곤충생태원에서 진행되는 진로체험프로그램의 일환으로 ‘곤충 캠프, 파브르의 하루’ 프로그램을 개발하여 시범 적용하였다. 참가자는 전주시 지역에 거주하는 초등·중학생 16명이며, 야간시간(19:00-23:00)대에 활동이 이루어짐에 따라 사전에 보호자로부터 참여 동의를 획득하였다. 야외 활동은 각 개인별로 랜턴과 채집 도구를 지참하였으며, 4-5명씩 한 조를 이루어 담당 교사와 보조 교사가 동행하였다. 주된 활동은 야간등화, 통나무 무더 기, 야생의 서식지, 미리 설치한 곤충 트랩 속 곤충 찾기, 스탬프 미션활동 등으로 구성되었다. 실내활동으로는 곤충 동정하기, 곤충 관찰 수첩, 나만의 곤충도감 만들기 등을 진행하였다. 효과를 분석하기 위해서 프로그램이 진행되기 전과 끝난 후에 설문조사를 실시하였다. 분석 결과, 참여자의 평균 연령은 12.8세이며, 프로그램 참여를 통해 자아존중감의 향상(3.34점→3.61)과 진로인식 향상(3.40점→3.66)에 긍정적인 변화를 가져왔다(p<0.05). 야간에 이루어지는 활동으로 고려해야 할 사항이 많기는 하지만, 참여자의 재참여 의도가 90점으로 만족도가 높은 것으로 나타났기에, 향후 추가적인 연구 및 새로운 시도가 필요할 것으로 보인다.

농가에서 곤충자원을 활용한 치유농업프로그램의 개발 요구가 증가함에 따라 기존 곤충 돌보기 중심의 치유프로그램과 더불어 활용할 수 있는 야간 곤충채집 활동을 치유농업프로그램으로 개발하 고 시범 적용하였다. 야간곤충채집 활동은 대학생 9명에게 사전에 참여 동의를 획득하고, 전남대학교 학술림(장성)에서 1박 2일간 진행하였다. 18시부터 24시까지 야간 채집 활동과 익일 오전에는 채집한 곤충을 이용한 곤충 표본 제작 활동으로 프로그램을 구성하였다. 프로그램의 효과 분석을 위해 사전 (활동 전), 중간(채집활동 직후), 사후(표본제작 직후)에 뇌파, 맥파 검사 그리고 설문조사를 실시하였 다. 뇌파 분석 결과, 야간 채집활동 직후 뇌파의 기초율동이 향상(10.67→11.44)하였다(p<0.05). 요인 분석을 통한 스트레스 분석 결과, 내적 스트레스는 3.22(사전)→2.96(사후)로 감소(p<0.1)하였고, 문제 수행능력 관련 스트레스는 2.92(중간)→2.70(사후)로 감소하였다. 이러한 결과는 야간 채집 활동 속에 서 이용되는 근육의 움직임이 뇌 기능 향상과 스트레스 감소에 영향을 줄 것으로 생각된다. 참여자가 적은 연구의 한계를 극복하기 위해 향후 연령대별, 성별 등 다양한 참여자를 대상으로 추가적인 채집 프로그램의 개발 및 적용이 필요하다.

It has been discovered that the isosaccharinic acid (ISA) formed in a cellulose degradation leachate were capable of forming soluble complexes with thorium, uranium (IV) and plutonium. Since 1993, the ISA has received particular attention in the literature due to its ability to complex a range of radionuclides, potentially affecting the migration of radionuclides. ISA is formed as a result of interactions between cellulosic materials within the waste inventory and the alkalinity resulting from the use of cementitious materials in the construction of the repository. In an alkaline cementitious environment, cellulose degrades mainly via a peeling-off reaction. The main degradation product is ISA, a polyhydroxy type of ligand forming stable complexes with tri- and tetravalent radionuclides. ISA can have an adverse effect on the sorption of radionuclides to an extent which depends on its concentration in the cement pore water and potentially enhance their mobility. The concentration of ISA is governed by several factors such as cellulose loading, cement porosity, extent of cellulose degradation, etc. The sorption of ISA on cement, however, is the process which governs the concentration of ISA in the pore water. According to the experimental result from a literature, the ISA concentration in facilities with a cellulose loading of 5% is calculated to be of the order of 10−4 M. At this level, the effect of cellulose degradation products on radionuclide sorption is negligibly small. Recently in Korea, cellulous limits as waste acceptance criteria is studying and planning to prepare the detailed requirement for near surface radioactive waste disposal facilities. It is desirable to suggest consideration on cellulose disposal limits around the time that the regulatory body and concern organizations establish the cellulose disposal limits as follows. Firstly, identify the cellulose effect on the sorption of the nuclides as cementitious disposal environments such as affected nuclides, threshold value and contribution to radiological risks under domestic disposal environment. Secondly, make sure and consider the difference between lab-scale experimental conditions and probability occurring in real disposal conditions such as probability for generation and persistence of pH in cellulosic material disposal conditions and cellulosic material disposal methods. Finally, consider characterization of cellulosic material such as polymerization, contents of cellulose in law material and time of degradation process. As a result, desirable cellulose limits are to set up for both safety and economic aspect.

Light is very important for plant growth and a major limiting factor in indoor plant cultivation, such as in balconies. This study was conducted to investigate the light intensity and lettuce (Latuca sativa L.) growth in an apartment balcony affected by the direction of balcony. Photosynthetic photon flux (PPF), air temperature, and relative humidity in the east-, south-, or west-facing balcony were measured for a year. The lettuce was grown in the east-, south-, or west-facing balcony. The time and amount of light entering into the balcony differed according to the direction of the balcony window. Whereas light entered into the east-facing balcony from sunrise to noon, it entered into the west-facing balcony afternoon before sunset. The temperature and humidity in the balcony also varied according to the direction of the balcony window. Daily Light Integral (DLI) in the south-facing balcony was 20~50% of outdoor and DLI in east- or west-facing balconies was 10~20%. Also, the environmental characteristics of the balconies were affected seasonally. In the spring (from March to May), the DLI was around 10 mol･m-2･day-1 and the average temperature was around 25°C. But the DLI was below 10 mol･m-2･day-1 and the average temperature and relative humidity were around 30°C and over 60%, respectively, in the summer (from June to August). In the balcony, the average temperature was maintained around 10°C even in winter, which is a condition of freezing outdoor. Growth of the lettuce in the south-facing balcony was better than that of the other directions. This is attributed to better environmental conditions of south-facing balcony. Therefore, considering the environmental characteristics of the balcony, selection and management of crops with relatively low light demand like leafy vegetables are required. It is also recommended to cultivate crops from autumn to spring.