본 연구는 2022년부터 2024년까지 3년간 광주광역시 유 통 쌈 채소류에 대한 잔류농약 실태조사 및 위해성 조사 를 수행하였다. 광주지역내 도매시장, 로컬푸드, 대형마트 를 통해 유통되고 있는 쌈 채소류 10품목[상추, 들깻잎, 쌈 배추, 무(잎), 쑥갓, 쌈추, 청경채, 치커리, 당귀(잎), 근대]에 대해 잔류농약 340종을 분석하였다. 3년간의 검출률과 부적 합률은 68.1%(2,414건), 3.3%(115건)였으며, 총 48종의 농약 성분이 농약 잔류허용기준(MRL)을 초과하여 검출되었다. 농약 잔류허용기준을 초과하여 검출된 농산물 115건 중 기 준치 초과 농약성분은 48종 131건이었으며, 그 중 PLS 기 준치를 초과한 70건은 전체 부적합 건수의 54.7%로 높은 수치를 보였다. 하지만, 농약성분의 위해성 평가(HI) 결과 0.000-0.168%로 안전한 수준인 것으로 확인되었다.

섬 관광은 새로운 관광 트렌드로 주목받고 있으며, 힐링·생태·체류형 등 다양한 형태로 발전하고 있다. 인천은 우리나라에서 가장 많은 섬을 보유한 해양관광 중심지로서, 강화도·백령도·연평도·자월도·덕적도·이작 도·신도·영흥도 등 주요 도서들이 각기 다른 자연환경, 문화유산, 해양레 저 자원을 갖추고 있다. 이를 기반으로 인천시는 풍부한 관광 자원을 활 용해 ‘섬 관광벨트 조성 및 바다로 통하는 인천’ 프로젝트를 추진하고 있 다. 본 연구는 인천 섬 관광에 대한 인식과 트렌드를 파악하기 위해 수 행되었다. 이를 위해 소셜미디어와 SNS에서 인천 섬 관광 관련 키워드 를 수집·정제하고, 단계적인 분석 절차를 거쳐 연구를 진행하였다. 연구 결과, 첫째, ‘여행’, ‘공항’, ‘투어’, ‘시간’, ‘도착’, ‘일정’, ‘바다’, ‘추천’, ‘출발’, ‘방문’, ‘관광공사’, ‘체험’ 등의 키워드가 온라인상에서 활발하게 언급되었다. 둘째, ‘지역’, ‘지원’, ‘서울’, ‘사업’, ‘호텔’ 등의 키워드가 높은 연결중심성을 보였으며, ‘체험’, ‘시간’, ‘바다’, ‘거리’, ‘일정’, ‘추 천’ 등은 강한 근접중심성을 나타냈다. 셋째, CONCOR 분석 결과, ‘관광 계획 및 체류활동’, ‘관광상품 및 교통정보’, ‘관광정책 및 개발계획’ 등 을 포함한 총 5개의 군집이 도출되었다.

A liver mass was incidentally revealed in a 10-year-old male neutered Himalayan cat on radiographic examination conducted in a local animal hospital. The abdominal distention had worsened over the past five months, along with intermittent vomiting and nausea for two weeks. Serum chemistry was unremarkable, except for elevated alkaline phosphatase and gamma-glutamyl transferase levels. Radiography revealed a round-shaped soft mass in the cranial abdomen. Abdominal ultrasonography showed a well defined, massive, fluid-filled cyst with multiple lobes, and heterogeneous echogenicity in the pancreas. Computed tomography examination revealed hypoplasia of the left lobes of the liver, but the vascular changes and enhancement of the mass were not observed on contrast computed tomography images. The herniation of the abdominal fat through the diaphragm was incidentally observed on sonography and computed tomography scan. The patient was tentatively diagnosed with pancreatic cyst. The laparotomy revealed that the origin was not related to the pancreas, but was suspended from the liver. The mass was multilobular and filled with approximately 120 ml of fluid containing a few white blood cells. The patient recovered from anesthesia, but showed postoperative respiratory depression and died of cardiac arrest 15 hours later. Histopathologically, the mass was definitively diagnosed to be hepatic cellular carcinoma.

In case of Korea, unlike overseas nuclear power plants, adjacent units are located in permanently stopped nuclear power plants. Radioactive substances from airborne and liquid effluents are released into the environment from the NPP, and the radioactivity of the released substances must be reported to the regulatory authorities. Radioactive effluents are released into the environment not only in operation but also after permanent shutdown. Due to domestic conditions in which multiple units exist on the same site, it is necessary to consider radioactive effluents generated after permanent shutdown of NPPs. In particular, liquid effluent may have an increased tritium concentration due to draining the spent fuel pool. This paper summarizes the annual liquid emissions of PWR power plants that have been permanently shut down. The data was obtained from the Nuclear Regulatory Commission’s (NRC) annual radioactive effluent release report, which provides information on the annual emissions power plants into the environment. The liquid emissions of each plant were organized into an annual table, providing an overview of the amount of liquid released by each plant. This study aims to raise awareness about the potential environmental impact of permanently shut down nuclear power plants and the need for proper management of their liquid emissions. The findings of this study can used by operator, policymakers, and other stakeholders to make informed decisions regarding the decommissioning and management of nuclear power plants.

Prior to dismantling a nuclear facility, full site characterization should be carried out to identify basic data for various stages of decommissioning, such as deregulation of sites and structures, selection of decontamination technology, decommissioning methods, and waste management and disposal. Radiological characterization is implemented through information collection, on-site measurement, sampling and analysis, and theoretical calculations and proven codes for radioactive material at the time of decommissioning of the nuclear facility. There are issues in that it takes a lot of time and money to collect and analyze samples for characterization of contaminated sites and radioactive structures. Therefore, in the entire process of decommissioning a nuclear facility, a technology that can quickly measure the radiological characteristics of various decommissioning objects and wastes on site is required. In this project, the utilization of gamma cameras that can be analyzed in the field for quick and accurate characteristic evaluation at the dismantling site was studied. A gamma camera, iPIX from Canberra (Now it became Mirion Technology), was tested in this study. It is a unique gamma imager, which have a CdTe sensor with TIMEPIX chip and a coded aperture collimator, quickly locates and identifies low to high level radioactive sources from a distance while estimating the dose rate at the measurement point in real time. It also can be combined with CZT sensor which called iPIX-NID (nuclide Identification) provides users with clear understanding of radionuclides presence with no need of any spectroscopic knowledge. iPIX with iPIX-NID convert the gamma camera into a hot-spot detector with radionuclide information. To verify the applicability of a gamma camera in Nuclear power plant, it was implemented to Kori unit-1 which was permanently shut down from 2017. Various Systems were observed at restricted area including reactor cooling system, boron recovery system, residual heat removal system, containment spray system, and etc. The locations of hot spots were clearly revealed by iPIX and these results can be used for selecting the locations of destructive samples and help to decide the conservative decision making. Condensate water systems in turbine building were also observed by a gamma camera and showed no nuclide. Based on this preliminary gamma camera applications, further investigation and tests will be carried out to Kori Unit-1.