Evaluation of Occurrence, Concentration, and Removal of Pathogenic Parasites and Fecal Coliforms in Three Waste Stabilization Pond Systems in Tanzania

Table 8

Spearman’s rho correlation test results for FCs, helminths, and protozoa.

Microorganism	Number of samples	Mean	Median	FCs		Protozoa		Helminths
				r		r		r
FCs (cfu/100 ml)	56	6.8 × 10^7	4.8 × 10^6	—	—	sc	s	nc	n
Protozoa ((oo)cysts/L)	56	141.6	6.0	0.60	0.000	—	—	Mc	s
Helminths (eggs/L)	56	13.7	0	0.05	0.709	0.30	0.049	—	—

Note. cfu = colony-forming unit; r = Spearman’s correlation coefficient;  = is significant level; sc = strong correlation; s = significant; nc = no correlation; n = not significant; wc = moderate correlation.