[Retracted] Human Health Risk Prediction Method of Regional Atmospheric Environmental Pollution Sources Based on PMF and PCA Analysis under Artificial Intelligence Cloud Model

Table 1

Comparison of source contribution rates between measured data and normal extended data (unit: %).

	Nitrate source	Soil aeolian sand source	Metallurgical source	Sulfate source	Fuel source
Measured data	19	17.7	21.1	34.6	7.6
2	25.5	11.5	23.8	32.3	7
3	24.8	10.7	24.6	32.3	7.6
4	20.7	16.1	20.5	32.4	10.3
6	19.6	17.3	20.1	35.4	7.5
8	19.5	19.1	20.6	34.4	6.4
12	23.9	15.4	15.4	29.5	7
24	25.3	10.9	23.3	32.5	8