酸の堆積,溶融炉の排出量,そしてアメリカ西部の線形性問題
Science (New York, N.Y.)
|August 30, 1985
まとめ
米国西部の有色金属溶融工場からの二酸化硫黄の排出量は,ロッキー山脈の降水中の硫酸塩濃度と線形的に相関しています. これは1000キロメートル以上の距離での硫黄の輸送を意味しています.
科学分野:
- 環境科学 環境科学
- 大気化学 大気化学
- 地質化学 地質化学
背景:
- 非鉄金属の鋳造工場は,二酸化硫黄 (SO2) の排出量の重要な源である.
- 大気中の硫黄の堆積は,生態系と水質に影響を与える可能性があります.
- 排出と堆積の関係を理解することは,環境管理にとって極めて重要です.
研究 の 目的:
- 非鉄金属溶融工場からのSO2排出量と降水中の硫酸塩濃度との関係を調査する.
- 排出源から受容領域への硫黄輸送の規模を決定する.
主な方法:
- 西米の smelters から 4 年間の SO2 排出データと,ロッキーマウンテン州からの降水における硫酸塩濃度データとの比較.
- 排出量の変動と降水硫酸塩濃度の相関を確立するための統計分析.
主要な成果:
- SO2排出量と降水中の硫酸塩濃度との間には,統計的に有意な線形関係が観察されました.
- 排出源と降水監視場所の空間的分布は,硫黄の輸送距離が1000kmを超えることを示唆しています.
結論:
- 米国西部の有色金属溶融工場からのSO2排出は,ロッキーマウンテン地域全体の降雨における硫酸塩濃度に影響を及ぼすことが実証されています.
- 大気中での硫黄の長距離輸送は,地域の空気質と堆積パターンの重要な要因である.
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