Table 3.

Sampling data for Serratia marcescens and phage ΦX174 at each point. (All data in the table was calculated and converted on the basis of Equation (5). The consistency of S1-phage data between group 2 and group 4, group 3 and group 5 is due to the same number of PFU observed).

Species & Point	Serratia marcescens (CFU/m3)				Phage ΦX174 (PFU/m3)
	S1	S2	S3	S4	S1	S2	S3	S4
Group 1	933074	5915	3435	293	1051270	84601	8198	343
Group 2	930318	4982	2519	283	557173	87018	4424	452
Group 3	931731	4339	2954	216	1114346	84163	5537	473
Group 4	933569	4608	1837	269	557173	85385	6929	548
Group 5	467350	5477	2710	452	1114346	82855	3481	378
Average	932173	4961	2686	265	878862	84804	5714	439