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

Table 3

Median values of the pollutant factors in the well data-accumulated regions.

Factors	Regions
	Guangzhou	Wanning	Qingdao	Shenyang	Wuhan
Sulfur dioxide (mg/m^3)	0.096	0.002	0	0.0082	0.0421
Hydrogen chloride (mg/m^3)	0.0946	0.0638	0.0399	0.0203	0.9288
Experimental period (month)	0.0563	0.0101	0.08	0.0769	0.1314
Nitrogen dioxide (mg/100 cm^2·day)	0.0166	0.0131	0.0521	0.0655	0.079
Hydrogen sulfide (mg/100 cm^2·day)	0.1456	0.2867	0.2846	0.5118	0.279
Sulfation rate (mg/100 cm^2·day)	0.0348	0.0431	0.0176	0.0664	0.0394
Ammonia (mg/100 cm^2·day)	0.0098	0.0584	0.1645	0.0115	0.0089
Sea salts (mg/100 cm^2·day)	2.083	0.7638	1.6562	6.6289	3.719
Water-soluble dust (g/m^2)	4.2203	3.063	2.9046	18.6164	5.1195