In this study, the concentrations of polycyclic aromatic hydrocarbons (PAHs) were investigated in meat process food and for cooking methods (pan-frying and charcoal fire). The methodology involved liquid-liquid extraction, silica gel cartridge clean-up and determination by gas chromatography/mass spectrometry (GC/MS). The recovery of 17 PAHs spiked into these samples ranged from 66.6 % to 98.0% and the coefficient of variation was less than 10%, but that of dibenz(a,h)anthracene was 16.39%. The mean concentration of total PAHs in processed samples was ND∼7.2 ng/g, whereas that pan-fried and charcoal-fired samples were ND∼22.1 ng/g and, 12.7∼367.8 ng/g, respectively. Therefore, the concentrations of total PAHs in cooked samples were higher than in original samples and charcoal-fired samples had the highest total PAH levels.

인구의 증가와 생활수준의 향상으로 폐기물 발생량이 증가하고 있으며, 이를 처리하기 위한 폐기물처리시설은 주민기피시설로 인식되어, 입지결정에 있어 보다 객관적이고, 체계적인 방법론의 도입이 필요한 실정이다. 본 연구는 대표적인 폐기물 처리시설인 매립지에 대한 입지특성 및 패턴을 분석하는 것을 목표로 하며, 이를 위해 지자체 소유의 매립지 222 개소의 위치정보에 대한 점 데이터를 기준시점에 의한 시공간분석방법을 수행하였다. 관련법안의 개정흐름에 따라 1999년, 2007년, 2011년 세 가지 시점의 매립지 분포를 표준편차 타원체(Standard Deviational Ellipse), 최근린 지수분석(Nearest Neighbor Index Analysis), Ripley’s K 함수에 의한 전체적인 입지패턴 분석과 퍼지모드(Fuzzy Mode), 최근린 계층군집방법(Nearest Neighbor Hierarchical Clustering)을 이용한 국지적인 입지패턴을 분석하였다. 표준편차 타원체의 분석 결과 중심점의 위치는 미세하게 남서쪽으로 이동하고 있었으며, 최근린 지수는 99% 유의수준에서 각각 0.81, 0.87, 0.75로 군집패턴을 확인하였으며, Ripley’s K 함수 역시 시간이 경과할수록 군집하는 특성을 나타내었다. 퍼지모드, 최근린 계층군집을 통한 핫스팟 분석결과 시간이 경과할수록 수도권 인근으로 콜드스팟이, 남부지방으로 핫스팟이 형성되어 폐기물 발생량과 처리시설의 입지가 일치하지 않음을 알 수 있었다. 본 연구를 통해 도출된 주요 매립분포지역에 속성 값의 적용 및 법의 개정의 내용에 따른 입지의 주요 영향요인을 분석한다면 보다 정량화된 매립지 입지모델을 수립할 수 있을 것으로 예상된다.

The developement of insecticidal soaps made by various fatty acids and organic control for insect by using of insecticidal soap(fatty acid salts) were empolyed. And the results were as follows： 1. To determine the input volume of potassium hydroxide for saponification of fatty acids, there were compared to individual acid value of fatty acids. in case of coconut fatty acids for saponification was 266.3 mg of potassium hydroxide(266g/1kg of fatty acid) was calculated. 2. To make the 25% soap content by coconut fatty acids, there was required for the 266g of potassium hydroxide and 3,459 liter of soft water. Then the liquor of soap was 4,644 liter. 3. The progress of insecticidal soap made by fatty acids was accomplished indirect heating and stirring reactor (1)to make the volume of potassium hydroxide solution and warming up(90℃) (2)input volume of individual fatty acid (3)more than 30 min stirring reaction (4)cooling progress. 4. Insecticidal value of insecticidal soap was observed more than 92% the dilution of 50 dilution solution in consecutive 5 days of 2 treatments of the 25% soap made by coconut fatty acids on the red pepper. And insecticidal value of insecticidal soap was observed more than 94% the 100 dilution solution in consecutive 5 days of 3 treatments of the 25% soap made by coconut fatty acids on red pepper and cabbage. 5. The treatment of two times of 25% soap made by coconut fatty acids at the 50 dilution solution and 100 dilution solution in spider mite on red bean has 100% insecticidal value. 6. There was no observation phytotoxic sypmtons on red pepper in field, except for 25% soap made by carprylic acid. 7. Over the two times over 0.1% in addition of isopropyl alcohol was to improvement the insecticidal effect, but there was no effect in addition of diatomaceous earth.