Table 4.

Experimental long-term sensor drift big data.

Batch ID	Month	Number of the Data
		Ethanol	Ethylene	Ammonia	Acetaldehyde	Acetone	Toluene
Batch 1	1, 2	83	30	70	98	90	74
Batch 2	3~10	100	109	532	334	164	5
Batch 3	11, 12, 13	216	240	275	490	365	0
Batch 4	14, 15	12	30	12	43	64	0
Batch 5	16	20	46	63	40	28	0
Batch 6	17~20	110	29	606	574	514	467
Batch 7	21	360	744	630	662	649	568
Batch 8	22, 23	40	33	143	30	30	18
Batch 9	24, 30	100	75	78	55	61	101
Batch 10	36	600	600	600	600	600	600