[Retracted] Analysis of Influencing Factors of PM2.5 Concentration and Design of a Pollutant Diffusion Model Based on an Artificial Neural Network in the Environment of the Internet of Vehicles

Table 1

Calculation of pollutant concentration.

Pollutant types	Daily average emission concentration (g/m^3)	Discharge rate (m^3/h)	Average strength (g/s)	C (50 m) (mg/m^3)	C (500 m) (mg/m^3)	C (1000 m) (mg/m^3)
BC (black charcoal)	5.8	1100.0	1.77	0.7621	0.0410	6.06E − 52
CO	690.0	1200.0	230.0	99.0360	5.3286	7.88E − 50
CO2	1324.7	2500.0	919.9	396.1008	21.3121	3.15E − 49
NH3	68.6	1100.0	21.0	9.0424	0.4865	7.20E − 51
OC (organic carbon)	4.8	1100.0	1.47	0.6330	0.0341	5.04E − 52
VOC (volatile organic compounds)	895.8	3200.0	796.3	342.8797	18.4485	2.73E − 49
PMC	19.6	2700.0	14.7	6.3297	0.3406	5.04E − 51
SO2	41.0	2300.0	26.2	11.2815	0.6070	8.98E − 51
NOx (nitrogen oxide)	450.0	1200.0	150.0	64.5887	3.4752	5.14E − 50
PM2.5	46.69	2700.0	35.0	15.0707	0.8109	1.20E − 50