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. 2020 Jun 23;741:140445. doi: 10.1016/j.scitotenv.2020.140445

Table 1.

SARS-CoV-2 viral RNA copy numbers and free chlorine in the effluents of septic tanks of Wuchang Cabin Hospital. Disinfectants were added at 10 am every day into the septic tanks.

Dates Samples SARS-CoV-2 (copies/L) Free chlorine (mg/L)c
26th February Influent of septic tank NDa (0/1)b ND
Effluent of septic tank (14.7 ± 2.2) × 103 (1/1) ND
1st March Influent of septic tank ND (0/1) ND
Effluent of septic tank (7.5 ± 2.8) × 103 (6/6) ND
10th March Influent of septic tank ND (0/2) ND
Effluent of septic tank ND (0/2) 23.0 ± 2.0
a

ND, non-detected.

b

Fraction in bracket is number of positive samples to number of total samples.

c

Free chlorine in septic tank 12-h after sodium hypochlorite addition.