Evidence of Multiple Sources of Soil Gas in the Tangshan Fault Zone, North China

Table 4

Fractional CO₂ contributions by different end-members to the soil gases.

Site	Proportions of A-derived CO2	Proportions of L-derived CO2	Proportions of S-derived CO2
	(%)
DHT	3	32	65
TJYC	5	31	64
HBLG	2	36	62
LHD	15	23	62
HET	8	28	64
SWZ	2	33	65
WFS	2	34	64