Assessment of the Temporal and Spatial Variation of the Mercury Content of Lake Nokoué in Southern Benin Republic (West Africa)

Table 2

Statistical data of the physicochemical parameters of water.

Parameters	n	Mean	Median	Min	Max	Sd	se
Temp (°C)	276	29.37	29.50	26.40	31.70	1.09	0.07
pH	276	7.10	7.13	3.90	11.18	1.02	0.06
Cond (μs/cm)	276	4992.34	499.45	1.00	32723.00	9080.87	546.60
Sal (ppt)	276	2.87	0.24	0.00	18.13	4.93	0.30
COD (mg/L)	276	337.96	182.86	91.43	3072.00	468.58	28.20
MES (mg/L)	276	0.08	0.03	0.00	1.48	0.20	0.01
Hg-Suf (μg/L)	276	0.43	0.24	0.02	4.93	0.57	0.03
Hg-Sed (μg/Kg)	276	7139.02	218.42	21.74	80976.68	14449.48	869.76