永定新河水質(zhì)監(jiān)測與分析

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DOI：10.3969/j.issn.1004-6755.2025.05.007

中圖分類號：S931.3 文獻標志碼：A 文章編號：1004—6755（2025）05-0037—03

Abstract：The Yongding New River serves multiple functions，including flood control and storage，agricultural irrigation，aquaculture，and ecological protection. By monitoring water quality at four stations in the Yongding New River from 2022 to 2023， changes in the annual average concentrations of permanganate index（ CODMn ），total nitrogen（TN），total phosphorus（TP），petroleum，and dissolved oxygen （DO） were analyzed.The results showed that the overall water quality of the four stations in Yongding New River from 2O22 to 2O23 had not changed much，the annual average concentration of CODMn ，TN and DO had increased compared with 2O22，but the annual average concentration of TP was basically stable; the predominant pollutants were identified as CODMn ，TN and petroleum. Key words： Yongding New River; water quality monitoring; water quality analysis

永定新河位于天津市區(qū)的北部，是海河流域永定河下游的入海河道[]，起于屈家店閘，經(jīng)北辰區(qū)、東麗區(qū)和濱海新區(qū)，在北塘鎮(zhèn)入渤海，全長66km[2] 。（剩余3533字）