富阳区地表水中六价铬检测数据

六价铬，均以含氧酸根的形式存在，过量的六价铬对水生物有致死作用。吸入可能致癌，对环境有持久危险性。本数据对富阳区地表水中的六价铬做出检测，从而为政府监管做出参考依据。1、数据来源:按照《水质 六价铬的测定 二苯碳酰二肼分光光度法 GB/T 7467-1987》对地表水进行水样采集检测。2、算法规则: 按照如下公式进行计算:C=(A-A0-a)*D/(b*v)，式中C为样品中六价铬的质量浓度，单位mg/L；A为水样的吸光度；A0为空白试验的吸光度；a为标准曲线的截距；b为标准曲线的斜率；V为试料体积，单位m1；D为稀释倍数。3、数据判定: 根据《地表水环境质量标准》Ⅲ类限值进行判定，若六价铬≤0.05mg/L，则判定地表水中该指标浓度合格，反之不合格。4、数据应用：通过分析水样中的六价铬质量浓度，我们可以判断该地表水的水质好坏，避免因六价铬浓度含量超高引起的水质问题，为监管提供依据。

Hexavalent chromium exists exclusively in the form of oxoanions. Excessive hexavalent chromium is lethal to aquatic organisms, while inhalation may induce cancer and poses persistent environmental hazards. This dataset involves the detection of hexavalent chromium in surface water from Fuyang District, providing reference basis for government supervision and regulation.
1. Data Source: Water samples were collected and tested in accordance with the Standard for the Determination of Hexavalent Chromium in Water - Diphenylcarbazide Spectrophotometry (GB/T 7467-1987).
2. Algorithm Rules: The calculation is performed using the following formula: C=(A-A0-a)*D/(b*v), where C is the mass concentration of hexavalent chromium in the sample (unit: mg/L); A is the absorbance of the water sample; A0 is the absorbance of the blank test; a is the intercept of the standard curve; b is the slope of the standard curve; v is the volume of the test sample (note: the original text uses "m1", which is likely a typo for mL); D is the dilution factor.
3. Data Judgment: The assessment is conducted based on the Class Ⅲ limit specified in the Environmental Quality Standards for Surface Water. If the concentration of hexavalent chromium is ≤ 0.05 mg/L, the concentration of this indicator in the surface water is deemed qualified; otherwise, it is deemed unqualified.
4. Data Application: By analyzing the mass concentration of hexavalent chromium in water samples, the water quality of the surface water can be evaluated, water quality issues caused by excessively high hexavalent chromium concentrations can be prevented, and reliable reference basis can be provided for regulatory work.

搜集汇总

数据集介绍

特点

该数据集记录了富阳区地表水中六价铬的检测结果，包含101条数据，更新频次为按需更新。数据按照国家标准进行采集和检测，用于判断水质是否合格，标准限值为0.05mg/L，主要应用于政府监管。