Migration of BTEX and Biodegradation in Shallow Underground Water through Fuel Leak Simulation

Table 1

The monitoring results of dissolved oxygen concentration in the water level monitoring hole of sand tank (mg/L).

Time (day)	W1	W2	W3	W4	W5	W6	W7	W8
92	6.43	0.23	0.2	0.17	7.19	0.33	0.06	0.13
106	6.98	0.23	0.24	0.72	6.73	1.07	0.91	1.06
117	7.61	1.11	0.47	0.5	7.92	1.43	0.78	0.32
142	8.0	1.0	0.5	0.3	8.1	0.8	0.4	0.3