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Comprehensive evaluation method for environmental air quality

A technology for comprehensive evaluation of ambient air quality, applied in the field of comprehensive evaluation of ambient air quality, it can solve the problems of complex calculation process, fixed pollution index and neglect, and achieve the effect of simple calculation.

Inactive Publication Date: 2014-12-10
CHINA WEST NORMAL UNIVERSITY
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Problems solved by technology

Actually, SO 2 , NO 2 Has reached light pollution, but was ignored in the AQI evaluation
[0009] A lot of research has been done on air quality evaluation methods at home and abroad, but there are problems with fixed pollution indicators, complicated calculation processes, and unclear descriptions.
In particular, the air quality index adopts the maximum value method, ignoring the comprehensive benefits of other pollutants

Method used

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Embodiment Construction

[0017] The present invention will be described in further detail below in conjunction with the embodiments.

[0018] A new comprehensive evaluation method of air quality: NAQI calculation method, its calculation formula is as follows:

[0019] P i = c i s i

[0020] W i = c i s i Σ i = 1 n c i s i

[0021] NAQI = 100 × Σ ...

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Abstract

The invention discloses a comprehensive evaluation method for environmental air quality. The comprehensive evaluation method mainly comprises the following steps: calculating ratios (pollution indexes) of the concentrations of various pollutants to corresponding first-grade concentration limit values in an environmental air quality standard, and with ratios of the pollution indexes to a sum of the pollution indexes as a weight, amplifying a sum of products of the pollution indexes and the weight by 100 times to obtain a new air quality index (NAQI for short). A calculation method the NAQI is as follows: formulas are as shown in the specification. According to the method, in consideration of the comprehensive influence of various pollutants, based on a first-grade air quality standard, the air quality is evaluated according to the dynamic weight. Compared with the prior art, the method is more scientific and accurate, and is simpler and more convenient to calculate.

Description

technical field [0001] The invention relates to the field of air pollution prevention and control, in particular to a comprehensive evaluation method for ambient air quality. Background technique [0002] Air is one of the three major substances (air, water, food) that human beings depend on for survival. However, due to the acceleration of industrialization and urbanization, the air quality is obviously declining. Especially the recent haze weather has made air pollution the focus of attention of the government and the public. In order to evaluate the ambient air quality, many cities conduct long-term continuous monitoring of air pollutants by establishing automatic atmospheric environment monitoring stations. Based on the mass concentration of air pollutants, the introduction of Air Quality Index (AQI) is to make it easier for the public to understand the state of air quality. The air quality index is used in many countries and regions. [0003] The air quality index i...

Claims

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Application Information

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IPC IPC(8): G01N33/00
Inventor 李友平周洪
Owner CHINA WEST NORMAL UNIVERSITY
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