Research on PM2.5 Spatiotemporal Forecasting Model Based on LSTM Neural Network

Table 2

Comparison of model performance with different time lags.

Parameter	Parameter (h)	MAE (μg/m^3)	RMSE (μg/m^3)	R^2
Time lag	1	7.81	12.727	0.92
	2	8.26	13.020	0.92
	4	7.31	12.374	0.92
	8	7.26	12.219	0.93
	10	7.06	12.132	0.93
	12	7.03	12.074	0.93
	14	6.83	12.048	0.93
	16	6.99	12.082	0.93
	24	7.33	12.393	0.92