蛍光由来水質パラメータを用いた排出汚染検出のための検出限界ベースおよびK近傍法ベース分類アプローチの比較評価
Yustika Desti Yolanda1, Mita Nurhayati2, Sangsik Kim3
1School of Advanced Science and Technology Convergence, Kyungpook National University, 2559 Gyeongsang-daero, Sangju, Gyeongsangbuk-do, 37224, Republic of Korea.
Journal of environmental management
|January 21, 2026
まとめ
機械学習は、蛍光データを使用して廃水汚染を正確に検出します。K近傍法(KNN)は、堅牢な水質監視のために検出限界(LOD)法よりも優れたパフォーマンスを示します。
科学分野:
- 環境科学; 分析化学; データサイエンス
背景:
- 廃水処理場(WWTP)の排出汚染は、公衆衛生と生態系にリスクをもたらします。光学増白剤と蛍光が指標として使用されますが、長期的な機械学習研究は乏しいです。水生環境の保護には、効果的な検出方法が不可欠です。
研究 の 目的:
- LODベースおよびKNNベースの機械学習法を比較して、WWTP排出の検出を比較すること。水質監視のための蛍光励起-放出マトリックス(EEM)および物理化学的パラメータの効果を評価すること。変動環境条件下での機械学習モデルの堅牢性を評価すること。
主な方法:
- 韓国の河川地点、WWTP排出、および影響を受けた下流地点から20ヶ月にわたって水サンプルを収集しました。蛍光励起-放出マトリックス(EEM)および従来の物理化学的パラメータを採用しました。データ分析のためにLODベースおよびKNNベースの分類アルゴリズムを利用しました。
主要な成果:
- KNNは、変動条件下でLODベースの方法(71-94%)を上回る、98%および91%の最適な精度を達成しました。トリプトファン様(ピークT)および微生物フミン様(ピークM)の蛍光が重要な指標でした。導電率が最も影響力のある物理化学的パラメータでした。90%の精度で検出可能な最小排出混合比は13-23%の範囲でした。
結論:
- 機械学習、特にKNNは、WWTP排出汚染を検出するための堅牢で正確なアプローチを提供します。蛍光分光法と機械学習の組み合わせは、水質監視能力を向上させます。この研究は、高度な分析技術による環境保護の改善の可能性を強調しています。
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