. 2014 Sep 9;6(9):2657–2675. doi: 10.3390/toxins6092657

Table 1.

Physicochemical characteristics of Los Patos shallow lake at the time zero and at after of 48 h of H₂O₂ addition.

Parameters	Time Zero	Light	48 h after H₂O₂ addition
Parameters	Time Zero	Light	0	0.17 (mg L⁻¹)	0.33 (mg L⁻¹)	0.83 (mg L⁻¹)	1.67 (mg L⁻¹)	3.33 (mg L⁻¹)
Conductivity (μS cm⁻¹)	599 ± 15	Yes	618 ± 12	666 ± 12	662 ± 20	665 ± 27	630 ± 19	640 ± 18
Conductivity (μS cm⁻¹)	599 ± 15	No	680 ± 18	667 ± 19	670 ± 21	660 ± 25	630 ± 20	645 ± 20
pH	9.47 ± 0.20	Yes	8.88 ± 0.10	9.05 ± 0.13	9.00 ± 0.12	9.06 ± 0.09	9.19 ± 0.12	9.22 ± 0.12
pH	9.47 ± 0.20	No	7.87 ± 0.12	7.45 ± 0.18	7.44 ± 0.10	7.68 ± 0.15	8.06 ± 0.15	8.20 ± 0.10
Optical Density	0.37 ± 0.02	Yes	0.08 ± 0.01	0.07 ± 0.01	0.09 ± 0.02	0.09 ± 0.01	0.08 ± 0.02	0.08 ± 0.02
Optical Density	0.37 ± 0.02	No	0.08 ± 0.02	0.07 ± 0.01	0.09 ± 0.02	0.09 ± 0.01	0.08 ± 0.01	0.07 ± 0.01
Total Phosphorus (mg L⁻¹)	0.89 ± 0.10	Yes	0.87 ± 0.10	0.83 ± 0.12	0.82 ± 0.09	0.81 ± 0.12	0.87 ± 0.03	0.90 ± 0.08
Total Phosphorus (mg L⁻¹)	0.89 ± 0.10	No	0.89 ± 0.09	0.79 ± 0.10	0.81 ± 0.12	0.96 ± 0.15	0.91 ± 0.06	0.94 ± 0.09
Dissolved total Phosphorus (mg L⁻¹)	0.20 ± 0.08	Yes	0.18 ± 0.08	0.40 ± 0.10	0.40 ± 0.09	0.55 ± 0.13	0.53 ± 0.09	0.55 ± 0.09
Dissolved total Phosphorus (mg L⁻¹)	0.20 ± 0.08	No	0.16 ± 0.08	0.30 ± 0.12	0.31 ± 0.13	0.47 ± 0.12	0.49 ± 0.10	0.53 ± 010
Chl-a (μg L⁻¹)	530 ± 10	Yes	445 ± 12	117 ± 5	74 ± 3	77 ± 8	71 ± 9	58 ± 8
Chl-a (μg L⁻¹)	530 ± 10	No	420 ± 22	320 ± 9	75 ± 6	81 ± 8	117 ± 7	111 ± 5
COD (mgO₂ L⁻¹)	243 ± 12	Yes	212 ± 8	142 ± 6	129 ± 9	130 ± 9	120 ± 10	126 ± 5
COD (mgO₂ L⁻¹)	243 ± 12	No	213 ± 10	226 ± 15	205 ± 11	200 ± 12	180 ± 9	119 ± 7
Total coliforms (MPN × 100 mL⁻¹)	4600	Yes	4600	2800	2400	150	90	<3
Total coliforms (MPN × 100 mL⁻¹)	4600	No	4600	2800	2400	280	93	<3
Fecal coliforms (MPN × 100 mL⁻¹)	4600	Yes	4600	2100	2100	130	11	<3
Fecal coliforms (MPN × 100 mL⁻¹)	4600	No	4600	2100	2100	210	14	<3