均值

标准差

极差

偏度

峰度

变异系数

AQI

长沙

88.9406

49.9035

338.0000

6.4599

1.6654

0.5611

株洲

85.1361

48.438

340.0000

7.3759

1.8103

0.5689

湘潭

86.5772

45.8179

344.0000

7.3582

1.767

0.5292

PM2.5

长沙

80.8701

43.3231

267.9000

3.9494

0.8820

0.5357

株洲

91.6120

51.1703

348.8000

5.5913

1.3596

0.5586

湘潭

96.8545

52.5998

374.4000

5.3707

1.3377

0.5431

NO₂

长沙

38.5184

16.589

102.9000

3.9007

1.0686

0.4307

株洲

35.2328

14.5183

82.1000

3.7306

0.9431

0.4121

湘潭

37.1953

15.3931

92.3000

3.7458

0.9937

0.4138