Table 3. Bacterial Abundance in Water Samples Based on qPCR-Derived 16S rRNA Gene Copy Numbers.

	16S rRNA gene copies per milliliter of water in
	(A) unspiked WW	(B) spiked WW	(C) chlorination	(D) HPC	(E) fresh water
mean	1.44 × 106	2.02 × 106	1.17 × 106	1.74 × 106	2.05 × 103
SD	6.33 × 105	4.88 × 105	3.40 × 105	4.43 × 105	1.84 × 103
significant difference with group(s) (p ≤ 0.05)	B, E	A, C, E	B, E	E	A, B, C, D