カードキャプターさくらからフロリダ・キーズまでの大西洋大陸の表面水域の浮遊物

F T Manheim, R H Meade, G C Bond

Science (New York, N.Y.)

|January 23, 1970

まとめ

大西洋沿岸の海水中の懸浮物質は,海岸近くに集中し,オフショアではなく海岸に沿って移動します. 煙草やフライアッシュのような汚染物質は,これらの水域で広く見られます.

科学分野:

海洋化学海洋化学について
海洋学海洋学海洋学
環境科学環境科学

背景:

地表水には懸浮物質が含まれており,水質と海洋生態系に影響を与えます.
懸浮物質の分布を理解することは,沿岸部と海洋の環境管理にとって極めて重要です.

研究の目的:

大西洋沿岸の表面水域における懸浮物質の分布と輸送を調査する.
suspended particles の自然発生源と人類発生源を区別する.

主な方法:

大西洋沿岸沿いの地表水から採取した水サンプルを分析した.
懸浮物質濃度の定量化 (ミリグラム/リットル).
粒子の種類 (有機,汚染物質など) を特定する.

主要な成果:

懸浮物質の高濃度 (> 1.0 mg/L) は,大西洋沿岸から数キロメートルに限られている.
シェルフ領域に入る粒子は,主に海に向かってではなく,長海岸に向かって移動します.
オフショア懸浮物質の濃度は低い (<0.1 mg/L),主に無形な有機粒子である.
煙草,フライアッシュ,加工されたセルロースなどの人為的な汚染物質の広範な分布が観察されました.

結論:

沿岸のプロセスは,大西洋沿岸の近くの懸浮物質の分布を大幅に制御しています.
ロングショア輸送は,シェルフ地域の粒子の支配的な経路です.
人為的な汚染物質は,大西洋沿岸の表面水域に広く浸透しており,広範囲にわたる環境汚染を示しています.

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