Table 3 Numerical features of standard cloud models. This table shows the cloud model parameters for AQI and various pollutants at different pollution levels. Each pollution level (excellent, good, mild pollution, moderate pollution, severe pollution) has a set of parameters (Ex, En, He), representing Ex, En, and He, which describe the expected concentration, distribution width, and fuzzy boundary of pollutant concentrations at that level.
From: Air quality assessment in Beijing based on cloud model
Pollutant | Excellent | Good | Mild | Moderate | Severe |
|---|---|---|---|---|---|
AQI | (25,8.33,0.83) | (75,8.33,0.83) | (125,8.33,0.83) | (175,8.33,0.83) | (250,16.67,1.67) |
CO | (1,0.33,0.003) | (3,0.33,0.003) | (9,1.67,0.017) | (19,1.67,0.017) | (30,2,0.02) |
NO\(_2\) | (20,6.67,0.67) | (60,6.67,0.67) | (130,16.67,1.67) | (230,16.67,1.67) | (422.5,47.5,4.75) |
O\(_3\) | (50,16.67,1.67) | (130,10,1) | (187.5,9.17,0.92) | (240,8.33,0.83) | (532.5,89.17,8.92) |
\(PM_{10}\) | (25,8.33,0.83) | (100,16.67,1.67) | (200,16.67,1.67) | (300,16.67,1.67) | (385,11.67,1.17) |
\(PM_{2.5}\) | (17.5,5.83,0.58) | (55,6.67,0.67) | (95,6.67,0.67) | (132.5,5.83,0.58) | (200,16.67,1.67) |
SO\(_2\) | (25,8.33,0.83) | (100,16.67,1.67) | (312.5,54.17,5.42) | (637.5,54.17,5.42) | (1200,133.33,13.33) |
