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        검색결과 2

        1.
        2024.04 구독 인증기관·개인회원 무료
        Division of the risk management, APQA(Animal and Plant Quarantine Agency) is conducting the IRA(Import Risk Assessment) to prevent the introduction of pests when importing foreign agricultural products. In the 2023 IRA, 55 cases of 19 items from 23 countries was analyzed, and fresh avocado(variety: HASS) from the Philippines was concluded in September 2023 and can be imported in accordance with appropriate phytosanitary measures. The main issue in the IRA of fresh avocado fruits from the Philippines was whether HASS variety avocados were host plants of Bactrocera dorsalis. As a result of the risk analysis, B. dorsalis were included in the pest list that needs to be managed by special risk management. As a risk management for B. dorsalis, one trap using methyl-eugenol is installed per 20 ha once a week. After surveying, if the population is more than 2/trap/day, control measures such as adding traps and spraying pesticides are necessary. As equivalence, regionalization, and transparency have been strengthened with the recent entry into force of the mega FTA, a higher level of scientific basis is required. Accordingly, division of the risk management, APQA is working harder to improve its expertise, and we need your cooperation and attention of the IRAs.
        2.
        2015.04 KCI 등재 서비스 종료(열람 제한)
        This study identified concentrations, toxicities, and sources of polycylic aromatic hydrocarbons (PAHs) and heavy metals in roadside sediment from different areas of Gwangju City. Samples were collected from 13 sites of heavy traffic area (TA), downtown area (DA) and park area (PA) during February and June in 2014. The results showed a wide distribution range of PAHs concentrations between 0.139 mg/kg and 1.740 mg/kg. The highest concentration of PAHs appeared in heavy traffic area (TA). The toxic equivalent quotients (TEQs) of PAHs in the roadside sediment ranged from 27 ng/g to 159 ng/g. The TEQs and PAHs ratio of heavy traffic area and downtown area was 9.1 to 11.0%, respectively. The contributions from potential sources to PAHs in roadside sediment were estimated by the principal component analysis (PCA) and diagnostic ratios between PAHs. Vehicular (gasoline and diesel engine) emissions were found to the predominant contributor of PAHs. The concentrations of heavy metals were highest in the heavy traffic areas. The correlation analysis among traffic intensity and heavy metals, showed that AADT correlates very strongly with Cr, Cu and Pb concentrations. From the results of pollution index (PI) calculation for roadside sediment, heavy traffic area was severly polluted by heavy metals such as Cr, Cu, Pb and Zn. Contaminants in roadside sediment were found to be much affected by the vehicles. Therefore, roadside deposited sediments would be expected to be managedon a regular basis.