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제목 : (2019) 생태계 기후변화 리스크 평가 및 적응대책 연구
발행일 : 2019-01-01 | 조회수 : 11135
카테고리 :
v 목 차 요약문 ········································································································ⅰ 목차 ···········································································································ⅴ 표목차 ········································································································ⅷ 그림목차 ·························································...
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제목 : (2018) 담수생태계 잔류 미세플라스틱(microplastics) 검출에 관한 시험연구
발행일 : 2018-01-01 | 조회수 : 3016
카테고리 :
1 Ⅰ. 서 론 플라스틱은 초경량에 내구성이 강한 장점이 있다. 이로 인해 세계 플 라스틱 생산량은 1950년대 2백만 톤이었으나, 2015년에는 4억 7백만 톤 으로 65년 동안 2백배 이상 증가하였다 Geyer, Jambeck, and Law, 2017 또한 1950년부터 2015년까지 65년 동안 플라스틱 폐기물 발생량 은 6,300백만 톤으로 이 중 77% 4,900만 톤 가 매립되거나 버려진 것으 로 추정된다. 현재의 추세가 지속될 경우 2050년 330억 톤이 될 것으로 예상된다 Geyer, Jambeck, and Law, 2017 그러나 플라스틱 폐기물에 대한 재활용은 1990년 초에 시작되어, 그 이후 매년 평균 0.7%씩 증가 하여 현재 20%의 재활용률을 보이고 있다. 선진국의 경우 폐기물...
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제목 : (2018) 외래생물 정밀조사. 5
발행일 : 2018-01-01 | 조회수 : 5073
카테고리 :
vii 목 차 요약문 ····················································································································i 목차 ······················································································································ⅶ 표목차 ··················································································································ⅸ 그림목차 ······················...
