宣城市地表水中总氮检测数据

依据《水质 总氮的测定 碱性过硫酸钾消解紫外分光光度法》（HJ 636 - 2012 ），经总氮检测仪器校准、地表水水样采集及规范检测流程操作，参照对应地表水环境质量功能区总氮限值标准，Ⅴ类水总氮≤2.0mg/L 对宣城市地表水点位检测，结果显示各点位总氮浓度均未超对应限值，判定为合格 。

According to the Standard for the Determination of Total Nitrogen in Water by Alkaline Potassium Persulfate Digestion Ultraviolet Spectrophotometry (HJ 636-2012), with calibration of total nitrogen detection instruments, collection of surface water samples and implementation in accordance with standardized detection procedures, and referring to the total nitrogen limit standards for corresponding surface water environmental quality functional zones where the total nitrogen limit for Class V water is ≤2.0 mg/L, the detection of surface water monitoring sites in Xuancheng City showed that the total nitrogen concentration at each site did not exceed the corresponding limit, and all sites were judged as qualified.

搜集汇总

背景与挑战

背景概述

该数据集包含宣城市2024年地表水总氮检测数据，共36条记录，涵盖三个监测点位的检测结果，所有检测值均低于2.0mg/L的限值标准。数据每年更新，采用国家标准检测方法，主要用于水质评估和富营养化防治。