地表水氨氮检测分析数据

氨氮在自然地表水体和地下水体中主要以硝酸盐氮(NO3)为主，以游离氨(NH3)和铵离子(NH4+)形式存在的氮受污染水体的氨氮 叫水合氨，也称非离子氨。氨氮是水体中的营养素，可导致水富营养化现象产生，是水体中的主要耗氧污染物，对鱼类及某些水生生物有毒害。算法规则:X=(A-B-a)/b/V。公式中: X是测试水样中氨氮的质量浓度，单位为毫克每升(mg/L) ，A是测试水样的吸光度，B是空白试验的吸光度，a是校准曲线的截距，b是校准曲线的斜率，V是测试水样体积，单位为毫升(mL)。2.数据应用: 通过数据分析，按照 《地表水环境质量标准》（GB3838-2002） 要求我们可以判断该点位氨氮的水质类别以Ⅱ类和Ⅲ类为主，说明水质较好。

Ammonia nitrogen mainly exists in the form of nitrate nitrogen (NO₃⁻) in natural surface water and groundwater. For ammonia nitrogen in polluted water bodies that exists in the forms of free ammonia (NH₃) and ammonium ions (NH₄⁺), it is referred to as hydrated ammonia, also known as non-ionic ammonia.
Ammonia nitrogen acts as a nutrient in water bodies, capable of inducing water eutrophication. It is also a major oxygen-consuming pollutant in aquatic environments and exhibits toxicity to fish and some aquatic organisms.
Algorithm Rule: X = (A - B - a) / b / V. In this formula: X represents the mass concentration of ammonia nitrogen in the tested water sample, with the unit of milligrams per liter (mg/L); A is the absorbance of the tested water sample; B is the absorbance of the blank test; a is the intercept of the calibration curve; b is the slope of the calibration curve; V is the volume of the tested water sample, with the unit of milliliters (mL).
2. Data Application: Through data analysis, the water quality category of ammonia nitrogen at this sampling site can be determined in accordance with the Environmental Quality Standards for Surface Water (GB3838-2002). The water quality here is dominated by Class Ⅱ and Class Ⅲ, indicating good water quality.

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该数据集包含105条地表水氨氮检测数据，每月更新，数据结构详细，包括样品编号、氨氮浓度等关键字段。数据应用于水质评估，通过算法规则计算氨氮浓度，判断水质类别，支持环境管理决策。