G1运河中总磷检测数据

水体中的磷是藻类生长需要的一种关键元素，过量磷会造成水体污秽异臭，是湖泊发生富营养化和海湾出现赤潮的主要原因。检测出来的总磷浓度越低，代表河道水质越好，为政府监管做出参考依据。1、数据来源：按照《水质 总磷的测定 钼酸铵分光光度法》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:ρ=(A-A0-a)/b/V，式中ρ为样品中总磷的质量浓度，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为取样体积，单位m1。3、数据判定：根据《地表水环境质量标准》进行判定，若总磷≤0.02mg/L，则判定为Ⅰ类水质；若0.02mg/L＜总磷≤0.1mg/L，则判定为Ⅱ类水质；若0.1mg/L＜总磷≤0.2mg/L，则判定为Ⅲ类水质；若0.2mg/L＜总磷≤0.3mg/L，则判定为Ⅳ类水质；若0.3mg/L＜总磷≤0.4mg/L，则判定为Ⅴ类水质；若总磷＞0.4mg/L，则判定为劣Ⅴ类水质。4、数据应用：通过分析水样中的总磷浓度含量，我们可以判断该地表水的水质好坏，避免因总磷浓度含量超高引起的水质问题，为监管提供依据。

Phosphorus in water bodies is a key element required for algal growth. Excessive phosphorus causes foul odors and discoloration of water bodies, and is the main cause of lake eutrophication and red tides in coastal bays. The lower the detected total phosphorus concentration, the better the river water quality, which can provide reference basis for government regulatory supervision.
1. Data Source: Surface water samples were collected and tested in accordance with the standard *Water quality—Determination of total phosphorus—Ammonium molybdate spectrophotometric method*.
2. Algorithm Rules: Calculations are performed using the following formula: ρ=(A-A₀-a)/(bV), where ρ is the mass concentration of total phosphorus in the sample, with the unit of 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; and V is the sampling volume, with the unit of mL.
3. Data Judgment: Water quality is classified according to the *Environmental Quality Standards for Surface Water*. The classification criteria are as follows:
- Class I water quality: total phosphorus ≤ 0.02 mg/L;
- Class II water quality: 0.02 mg/L < total phosphorus ≤ 0.1 mg/L;
- Class III water quality: 0.1 mg/L < total phosphorus ≤ 0.2 mg/L;
- Class IV water quality: 0.2 mg/L < total phosphorus ≤ 0.3 mg/L;
- Class V water quality: 0.3 mg/L < total phosphorus ≤ 0.4 mg/L;
- Inferior Class V water quality: total phosphorus > 0.4 mg/L.
4. Data Application: By analyzing the total phosphorus concentration in water samples, we can evaluate the water quality of the surface water, avoid water quality problems caused by excessive total phosphorus concentration, and provide reference basis for regulatory work.

搜集汇总

数据集介绍

特点

G1运河中总磷检测数据是由浙江格临检测股份有限公司提供的企业数据，包含100条记录，每月更新。数据按照《水质 总磷的测定 钼酸铵分光光度法》进行采集和检测，用于分析水样中的总磷浓度含量，判断水质好坏，为政府监管提供参考依据。