Source Contributions of PM_2.5 in the Severe Haze Episode in Hebei Cities

Table 4

The average source contributions (%) to PM_2.5 concentrations in Hebei cities by source regions and sectors from 1 January to 28 February 2013.

	IN	PO	DO	TR	AG	IN	PO	DO	TR	AG	IN	PO	DO	TR	AG
	Shijiazhuang					Xingtai					Handan
SHB	29.7	0.6	24.6	4.4	9.4	27.3	0.5	27.6	1.8	9.9	28.8	0.6	25.1	3.0	8.8
NHB	3.3	0.0	8.0	0.0	2.7	2.2	0.0	5.1	0.0	2.2	1.7	−0.1	4.1	0.0	1.8
BJTJ	0.9	0.0	1.5	0.0	0.2	1.0	0.0	1.5	0.0	0.3	0.8	0.0	1.2	0.0	0.2
SD	0.4	−0.1	1.3	−0.1	0.9	0.7	−0.1	2.0	0.0	1.3	0.7	−0.1	2.3	0.0	1.4
HN	0.3	−0.1	0.7	−0.1	0.7	1.5	−0.1	2.4	0.0	2.7	2.5	−0.2	3.7	0.0	4.1
SX	1.5	0.1	1.9	0.0	0.5	1.6	0.1	1.9	0.0	0.5	1.3	0.0	1.6	0.0	0.4
Sum	36.1	0.5	38	4.2	14.4	34.3	0.4	40.5	1.8	16.9	35.8	0.2	38	3	16.7
	Zhangjiakou					Chengde					Qinhuangdao
SHB	0.2	0.0	0.4	0.0	0.5	0.1	0.0	0.3	0.0	0.3	0.2	0.0	4.2	0.0	0.2
NHB	31.2	0.9	26.9	4.0	8.5	16.9	0.6	35.8	2.4	10.8	28.2	1.3	20.1	3.0	8.2
BJTJ	0.4	0.0	0.8	0.1	0.4	1.5	0.0	2.8	0.1	1.2	1.0	0.0	1.8	0.0	0.5
SD	0.1	0.0	0.2	0.0	0.3	0.2	0.0	0.5	0.0	0.6	0.9	0.0	1.2	0.1	1.4
HN	0.1	0.0	0.1	0.0	0.3	0.1	0.0	0.1	0.0	0.3	0.1	0.0	0.2	0.0	0.3
SX	0.7	0.1	1.1	0.0	0.7	0.3	0.0	0.4	0.0	0.2	0.2	0.0	0.3	0.0	0.1
Sum	32.7	1	29.5	4.1	10.7	19.1	0.6	39.9	2.5	13.4	30.6	1.3	27.8	3.1	10.7
	Cangzhou					Hengshui					Langfang
SHB	0.6	−0.1	1.5	−0.1	0.8	2.0	−0.2	4.7	−0.1	1.6	0.5	0.0	1.0	0.0	0.5
NHB	14.0	0.3	23.9	0.8	10.4	13.5	0.2	24.6	0.9	11.1	9.1	0.2	14.9	0.3	5.0
BJTJ	5.3	0.2	7.5	0.3	1.1	1.9	0.0	2.7	0.0	0.4	16.0	0.2	29.4	1.4	3.6
SD	2.9	0.2	5.8	0.1	4.6	2.6	−0.2	6.9	−0.1	4.6	0.7	0.0	1.5	0.0	1.1
HN	0.5	−0.2	1.3	−0.1	1.6	0.2	−0.3	2.8	−0.2	2.8	0.1	−0.1	0.3	0.0	0.4
SX	0.7	0.0	1.0	0.0	0.3	1.0	−0.1	1.5	0.0	0.4	0.4	0.0	0.7	0.0	0.2
Sum	24	0.4	41	1	18.8	21.2	−0.6	43.2	0.5	20.9	26.8	0.3	47.8	1.7	10.8
	Baoding					Tangshan
SHB	0.9	−0.1	1.8	−0.1	0.8	0.2	0.0	0.4	0.0	0.2
NHB	35.4	0.3	31.9	3.4	9.2	40.0	2.0	28.6	1.7	9.2
BJTJ	2.2	0.0	3.3	0.0	0.4	1.5	0.0	3.0	0.0	0.8
SD	0.5	−0.1	1.3	0.0	0.9	0.5	0.1	1.0	0.0	1.0
HN	0.2	−0.1	0.4	0.0	0.5	0.1	0.0	0.2	0.0	0.3
SX	0.5	0.0	0.7	0.0	0.2	0.2	0.0	0.3	0.0	0.1
Sum	39.7	0.0	39.4	3.3	12	42.5	2.1	33.5	1.7	11.6