Service-Life Study of Polycarbonate Outdoors Using Python with Incomplete Data

Table 5

Mean and variance of the importance of the pollutant factors after 100 repetitions of the calculations.

Factors	Mean of the 100 results	Variance of the 100 results
Sulfur dioxide (mg/m^3)	0.00969447
Hydrogen chloride (mg/m^3)	0.01319386
Experimental period (month)	0.76373876
Nitrogen dioxide (mg/100 cm^2·day)	0.01498199
Hydrogen sulfide (mg/100 cm^2·day)	0.00904402
Sulfation rate (mg/100 cm^2·day)	0.00600798
Ammonia (mg/100 cm^2·day)	0.01206354
Sea salts (mg/100 cm^2·day)	0.02162541
Water-soluble dust (g/m^2)	0.0084063
Non-water-soluble dust (g/m^2)	0.0059862