Table 2.

Concentration of AgNPs obtained from ICP-OES assessment.

Location	Sampling event
	1 (mg L−1)	2 (mg L−1)	3 (mg L−1)	4 (mg L−1)
STP 1	15.38 ± 5.95	0.47 ± 0.12	0.40 ± 0.44	0.53 ± 0.31
STP 2	20.02 ± 0.56	0.53 ± 0.31	0.33 ± 0.32	0.13 ± 0.03
River 1	10.16 ± 1.32	0.13 ± 0.06	0.23 ± 0.12	0.13 ± 0.06
River 2	9.63 ± 0.80	0.13 ± 0.06	0.30 ± 0.26	0.10 ± 0.00