Variable

DF

Parameter Estimate

Standard Error

t Value

Pr > |t|

Variance Inflation

Intercept

1

1.16145

0.15861

7.32

<0.0001

0

month

1

−0.05704

0.00813

−7.02

<0.0001

1.51949

NO₂

1

0.03686

0.00295

12.51

<0.0001

9.74253

CO

1

0.32654

0.05925

5.51

<0.0001

8.25080

humid

1

0.01382

0.00153

9.05

<0.0001

2.10674

windmax

1

0.01588

0.00280

5.67

<0.0001

1.57194

no23

1

−0.00000110

1.910873E−7

−5.76

<0.0001

8.61501

co3

1

−0.00328

0.00126

−2.60

0.0098

4.77293

o323

1

6.359915E−8

6.027122E−9

10.55

<0.0001

1.06678