Air Pollutant Concentration Forecasting Using Long Short-Term Memory Based on Wavelet Transform and Information Gain: A Case Study of Beijing

Table 1

Statistical descriptions of the main indicators.

	PM2.5	PM10	NO2	CO	SO2	O3
Unit	μg/m^3	μg/m^3	μg/m^3	μg/m^3	μg/m^3	μg/m^3
Mean	73.63	99.24	12.76	1.17	49.45	98.49
Std.	65.73	73.89	15.84	0.96	23.68	64.68
Min	5	7	2	0.2	10	3
Max	477	550	133	8	155	308
Median	55	84	7	0.9	43.5	84.5
Skewness	2.02	1.79	2.91	2.83	1.19	0.68
Kurtosis	5.49	4.79	11.21	11.52	1.56	−0.35