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. 2019 Nov 6;191(12):720. doi: 10.1007/s10661-019-7876-3

Table 2.

Colony count per unit volume (m3) within one hour and the natural decay rate (%)

S. No. 0 min (CFU/m3) 60 min (CFU/m3) Natural decay (%)
1 1240 260 79.03
2 2090 440 78.95
3 2460 490 80.08
4 2460 522 78.78
5 2810 510 81.85
6 5610 1068 80.96
7 11,180 2370 78.80