フルテキストファイル
タイトルヨミ
ヒョウチャク ゴミ リョウ ノ ソクテイ ニ ヒツヨウ ナ カイヒン ゴミ ノ サキュウ カラ ノ リュウシュツ ニ ヨル ショウシツ ハンゲンキ
タイトル別表記
Elimination Half-life Measurement of Beach Litter in Order to Estimate the Amount of Floating Marine Litter That is Washed Ashore
著者
岡野 多聞 鳥取大学大学院工学研究科化学・生物応用工学専攻
森田 晃 鳥取大学大学院工学研究科化学・生物応用工学専攻
キーワード
Floating marine litter
Elimination half-life
Beached PET bottle
Washed-up lighter
Beach debris
抄録
The amount of marine litter released from each country is reflected in the amount of beached litter originating from each corresponding country. Therefore, the monitoring results are instrumental in improving the measures to prevent the outflow of waste. However, the actual quantity washed ashore minus the quantity of outflow is the change of accumulated quantity on beach. Therefore, we measured the elimination half-life of litter items on eight beaches facing the Sea of Japan, and classified the items the beached quantity of which are possible to be measured. Consequently, it is impossible to measure the beached quantities of debris of polystyrene foam and plastic bags because of their instant transport even by weak wind. The elimination half-life of PET bottles from the beaches is about one month, because some of them contain residues or sand. Therefore the beached quantities of most of plastic bottles are considered possible to be measured by monthly monitoring. Disposable lighters and glass bottles are not affected by wind transport, and their elimination half-lives are around three months. However, it is difficult to measure the beached quantity of plate-like debris thinner than disposable lighters, because they are buried and exposed by blown sand.
出版者
鳥取大学大学院工学研究科
資料タイプ
紀要論文
ISSN・ISBN
0385-8596
掲載誌名
鳥取大学大学院工学研究科/工学部研究報告
最新掲載誌名
鳥取大学大学院工学研究科/工学部研究報告
45
開始ページ
95
終了ページ
105
発行日
2014-12-25
著者版フラグ
出版社版
掲載情報
鳥取大学大学院工学研究科/工学部研究報告. 2014, 45, 95-105
部局名
工学部・工学研究科
言語
日本語