Interaction between Soil Physicochemical Parameters and Earthworm Communities in Irrigated Areas with Natural Water and Wastewaters

Table 2

Range of nitrogen, phosphorus, heavy metals (ETM), and pathogens contents from 7 upstream to downstream wastewater sampling points in El Gourzi effluent, according to Tamrabet et al.’s [20] study.

Parameter	mg/l	NH^4+mg/l	mg/l	Fe; mg/l	Mn; mg/l	Cu; mg/l	Mn; mg/l	Zn; mg/l	FC; G/100 ml	FS; G/100 ml
Range values	3.25–6.4	58.5–170.7	1.4–13.45	0.14–4.08	5.14–9.1	0.60–0.66	5.14–9.1	0.28–0.74	0.63 × 10^4–2.75 × 10^4	0.7 × 10^4–1.1 × 10^4

: nitrates; NH⁴⁺: ammonium; : orthophosphates; Fe: iron; Cu: copper; Zn: zinc; Mn: manganese; FC: fecal coliforms; FS: fecal streptococci; G: germs/seeds.