Preliminary Study on Physico-Chemical Parameters and Phytoplankton of Chiffa River (Blida, Algeria)

Table 2

Pearson correlation coefficient and significance level between the physico-chemical variables of Chiffa river at Blida, Algeria.

	𝑇	EC	NO3^−	NO2^−	NH4^+	Na^+	Mg^2+
NO3^−	(−)**
NO2^−	(−)**		(+)***
Na^+		(+)*			(−)***
Cl^−						(+)*
Ca^2+		(+)**
Org m.	(−)*		(+)***	(+)***
HCO3^−			(+)**	(+)*			(+)*

^∗𝑃 < 0.05; **𝑃 < 0.01; ***𝑃 < 0.001.