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Calidad reportada
Excelente
Buena
Aceptable
Contaminada
Fuertemente contaminada
Región Hidrológico Administrativa
Año
I. Península de Baja California
2003
43.7
12.5
18.8
25.0
0.0
2004
40.0
20.0
33.3
6.7
0.0
2005
53.0
7.0
27.0
13.0
0.0
2006
46.7
13.3
26.7
6.7
6.7
2007
46.1
23.1
23.1
7.7
0.0
2008
25.0
8.3
50.0
12.5
4.2
2009
27.3
9.1
45.5
13.6
4.5
2010
33.3
9.5
33.3
23.9
0.0
2011
7.7
7.7
53.8
30.8
0.0
2012
18.8
22.4
35.3
18.8
4.7
2013
1.2
23.8
34.5
38.1
2.4
2014
3.9
10.5
51.3
28.9
5.3
2015
48.8
9.5
31.0
9.5
1.2
2016
46.4
18.6
27.8
6.2
1.0
2017
53.6
13.4
23.7
8.2
1.1
2018
53.7
8.6
25.8
9.7
2.2
2019
45.2
15.5
25.0
11.9
2.4
2020
40.4
23.6
20.2
15.7
0.0
II. Noroeste
2003
80.0
20.0
0.0
0.0
0.0
2004
38.5
15.4
30.8
7.7
7.7
2005
50.0
21.4
7.1
21.4
0.0
2006
21.4
28.6
0.0
42.9
7.1
2007
14.3
35.7
14.3
28.6
7.1
2008
60.0
10.0
20.0
5.0
5.0
2009
50.0
26.5
23.5
0.0
0.0
2010
51.2
23.1
20.5
2.6
2.6
2011
52.8
22.2
16.7
8.3
0.0
2012
15.5
70.4
12.7
1.4
0.0
2013
11.8
53.9
31.6
1.3
1.4
2014
31.5
31.5
34.2
2.7
0.0
2015
73.8
13.1
11.9
0.0
1.2
2016
71.5
15.8
9.5
1.1
2.1
2017
73.4
10.6
10.6
3.2
2.2
2018
71.2
9.6
12.8
3.2
3.2
2019
53.1
10.2
22.4
10.2
4.1
2020
74.6
2.8
15.5
7.0
0.0
III. Pacífico Norte
2003
70.0
15.0
15.0
0.0
0.0
2004
70.7
17.1
9.8
2.4
0.0
2005
65.9
17.1
12.2
4.9
0.0
2006
64.3
16.7
14.3
2.4
2.4
2007
65.9
14.6
17.1
2.4
0.0
2008
68.3
14.6
14.6
2.5
0.0
2009
70.7
12.2
17.1
0.0
0.0
2010
70.7
12.2
17.1
0.0
0.0
2011
61.0
19.5
17.1
2.4
0.0
2012
32.3
57.9
8.7
1.0
0.0
2013
12.5
60.5
26.5
0.5
0.0
2014
18.4
32.5
48.1
1.0
0.0
2015
86.0
8.4
4.7
0.9
0.0
2016
83.2
9.9
4.3
1.7
0.9
2017
82.5
10.3
4.0
3.2
0.0
2018
79.6
12.4
5.3
1.3
1.4
2019
57.6
19.4
18.4
4.1
0.5
2020
77.7
8.6
8.6
5.1
0.0
IV. Balsas
2003
28.2
15.4
23.1
28.2
5.1
2004
32.6
14.0
27.9
20.9
4.7
2005
33.3
21.4
16.7
21.4
7.1
2006
28.6
23.8
21.4
21.4
4.8
2007
36.2
19.1
23.4
19.1
2.2
2008
32.7
20.7
32.8
8.6
5.2
2009
16.6
23.8
41.7
13.1
4.8
2010
38.5
29.9
17.1
11.1
3.4
2011
16.7
35.8
34.6
11.2
1.7
2012
31.2
16.9
32.6
15.7
3.6
2013
17.9
17.3
43.9
17.0
3.9
2014
25.1
28.0
28.7
13.7
4.6
2015
40.1
18.8
19.6
14.2
7.4
2016
32.7
19.1
21.9
18.2
8.1
2017
45.2
9.4
23.6
13.9
7.9
2018
40.9
15.5
21.5
14.3
7.8
2019
33.3
12.4
25.9
18.1
10.3
2020
35.1
13.3
33.5
13.3
4.7
V. Pacífico Sur
2003
0.0
0.0
-
0.0
0.0
2004
0.0
0.0
0.0
0.0
0.0
2006
100.0
0.0
0.0
0.0
0.0
2007
77.8
22.2
0.0
0.0
0.0
2008
0.0
0.0
0.0
0.0
0.0
2009
0.0
0.0
0.0
0.0
0.0
2010
0.0
0.0
0.0
0.0
0.0
2011
0.0
20.0
20.0
20.0
20.0
2012
36.2
43.1
16.4
3.4
0.9
2013
26.2
39.3
29.5
5.0
0.0
2014
32.4
46.5
19.0
2.1
0.0
2015
76.8
13.4
6.3
3.5
0.0
2016
79.9
6.7
6.0
3.4
4.0
2017
82.9
5.3
3.3
3.9
4.6
2018
76.6
6.3
10.8
4.4
1.9
2019
74.8
5.3
9.9
3.8
6.2
2020
75.0
10.4
9.7
1.4
3.5
VI. Río Bravo
2003
69.2
7.7
23.1
0.0
0.0
2004
60.5
13.2
23.7
2.6
0.0
2005
31.6
15.8
52.6
0.0
0.0
2006
55.6
7.4
22.2
11.1
3.7
2007
11.4
68.6
17.1
2.9
0.0
2008
23.9
54.3
17.4
4.4
0.0
2009
48.6
46.2
2.6
2.6
0.0
2010
29.1
45.3
24.4
1.2
0.0
2011
35.8
42.0
22.2
0.0
0.0
2012
63.8
19.0
14.5
2.3
0.5
2013
46.9
20.3
31.1
1.7
0.0
2014
45.5
35.2
16.8
2.5
0.0
2015
68.0
15.1
15.5
1.4
0.0
2016
58.0
20.8
16.8
4.4
0.0
2017
64.1
17.2
13.1
4.9
0.7
2018
66.5
9.1
16.7
6.8
0.9
2019
61.5
15.0
14.5
6.5
2.5
2020
60.7
11.2
20.4
7.3
0.5
VII. Cuencas Centrales del Norte
2003
90.0
10.0
0.0
0.0
0.0
2004
81.8
18.2
0.0
0.0
0.0
2005
40.0
30.0
30.0
0.0
0.0
2006
45.0
25.0
30.0
0.0
0.0
2007
80.0
20.0
0.0
0.0
0.0
2008
85.7
9.5
4.8
0.0
0.0
2009
90.0
10.0
0.0
0.0
0.0
2010
80.0
20.0
0.0
0.0
0.0
2011
85.0
10.0
5.0
0.0
0.0
2012
41.9
51.2
7.0
0.0
0.0
2013
8.7
65.2
26.1
0.0
0.0
2014
15.2
47.8
37.0
0.0
0.0
2015
75.5
18.4
2.0
4.1
0.0
2016
83.2
11.1
1.9
1.9
1.9
2017
74.5
16.4
5.5
1.8
1.8
2018
82.7
7.7
7.7
1.9
0.0
2019
66.0
14.0
18.0
2.0
0.0
2020
81.3
12.5
2.1
4.2
0.0
VIII. Lerma-Santiago-Pacífico
2003
30.1
20.5
26.0
19.2
4.2
2004
28.2
21.4
30.1
13.6
6.8
2005
39.5
13.6
22.2
19.8
4.9
2006
39.5
16.5
23.9
13.8
6.4
2007
41.7
14.6
28.2
8.7
6.8
2008
40.4
14.4
24.2
19.0
2.0
2009
48.7
9.3
24.0
12.7
5.3
2010
44.9
12.1
24.8
14.8
3.4
2011
23.0
33.8
25.6
13.8
3.8
2012
22.3
24.3
32.7
17.7
3.0
2013
7.5
26.4
53.4
10.0
2.7
2014
9.4
23.4
57.2
6.6
3.4
2015
32.3
15.1
41.7
8.3
2.6
2016
41.6
10.5
35.9
7.1
4.9
2017
37.5
13.3
34.3
9.6
5.3
2018
37.5
11.7
37.8
8.3
4.7
2019
31.7
13.1
38.8
11.0
5.4
2020
38.8
8.0
38.0
11.7
3.5
IX. Golfo Norte
2003
66.6
16.7
14.3
0.0
2.4
2004
65.0
20.0
7.5
5.0
2.5
2005
82.1
7.7
5.1
5.1
0.0
2006
59.0
18.0
20.5
2.6
0.0
2007
75.6
9.8
7.3
7.3
0.0
2008
80.5
12.2
4.9
2.4
0.0
2009
80.9
11.9
4.8
2.4
0.0
2010
83.7
9.3
2.3
4.7
0.0
2011
88.3
4.7
4.7
2.3
0.0
2012
66.8
17.4
10.6
3.4
1.7
2013
64.9
20.2
11.6
2.5
0.8
2014
74.5
11.9
11.1
1.2
1.2
2015
73.0
9.9
12.7
1.2
3.2
2016
77.4
6.3
10.3
2.4
3.6
2017
76.4
5.3
13.3
2.3
2.7
2018
72.1
9.2
13.1
2.4
3.2
2019
62.9
13.2
13.2
6.3
4.4
2020
61.2
13.8
19.0
3.0
3.0
X. Golfo Centro
2003
62.2
5.4
2.7
18.9
10.8
2004
2.4
61.9
21.4
7.1
7.1
2005
0.0
75.6
12.2
7.3
4.9
2006
0.0
82.0
8.0
8.0
2.0
2007
0.0
78.0
12.0
8.0
2.0
2008
0.0
74.4
18.6
4.7
2.3
2009
0.0
70.3
13.0
11.1
5.6
2010
0.0
79.2
17.0
1.9
1.9
2011
0.0
74.1
18.5
3.7
3.7
2012
36.6
27.7
20.2
13.9
1.7
2013
25.7
36.9
32.5
4.4
0.5
2014
26.5
30.1
36.1
6.4
0.8
2015
55.0
17.2
19.8
5.0
3.1
2016
59.4
18.0
13.2
6.4
3.0
2017
66.4
7.7
18.6
5.8
1.5
2018
62.1
12.4
15.3
8.4
1.8
2019
56.0
10.6
18.3
10.2
4.9
2020
65.0
11.8
17.5
4.2
1.5
XI. Frontera Sur
2003
71.9
6.3
3.1
15.6
3.1
2004
0.0
0.0
0.0
0.0
0.0
2005
55.6
14.8
29.6
0.0
0.0
2006
34.4
50.0
9.4
6.3
0.0
2007
18.7
65.6
9.4
6.3
0.0
2008
21.8
71.9
6.3
0.0
0.0
2009
0.0
86.1
13.9
0.0
0.0
2010
27.7
55.6
16.7
0.0
0.0
2011
81.8
15.2
0.0
3.0
0.0
2012
71.1
19.8
7.1
1.2
0.8
2013
51.1
34.8
12.5
1.6
0.0
2014
62.0
26.0
10.4
1.2
0.4
2015
72.0
21.5
4.2
2.3
0.0
2016
73.3
19.0
6.5
0.8
0.4
2017
28.5
30.1
39.8
1.2
0.4
2018
20.1
16.7
59.4
3.1
0.7
2019
17.9
17.9
51.8
10.4
2.0
2020
51.4
18.8
28.3
1.4
0.0
XII. Península de Yucatán
2003
91.7
8.3
0.0
0.0
0.0
2004
92.9
7.1
0.0
0.0
0.0
2005
100.0
0.0
0.0
0.0
0.0
2006
100.0
0.0
0.0
0.0
0.0
2007
100.0
0.0
0.0
0.0
0.0
2008
100.0
0.0
0.0
0.0
0.0
2009
90.0
0.0
10.0
0.0
0.0
2010
100.0
0.0
0.0
0.0
0.0
2011
100.0
0.0
0.0
0.0
0.0
2012
95.5
1.5
3.0
0.0
0.0
2013
54.7
35.8
9.5
0.0
0.0
2014
90.6
7.5
1.9
0.0
0.0
2015
81.1
7.5
11.3
0.0
0.0
2016
85.1
4.3
10.6
0.0
0.0
2017
4.1
37.5
56.3
2.1
0.0
2018
2.1
27.7
70.2
0.0
0.0
2019
0.0
21.4
66.7
11.9
0.0
2020
4.4
24.4
66.7
4.4
0.0
XIII. Aguas del Valle de México
2003
4.0
4.0
20.0
40.0
32.0
2004
5.3
5.3
21.1
36.8
31.6
2005
4.0
8.0
20.0
36.0
32.0
2006
4.0
0.0
24.0
32.0
40.0
2007
4.0
0.0
28.0
28.0
40.0
2008
4.0
0.0
28.0
20.0
48.0
2009
4.2
0.0
20.8
25.0
50.0
2010
3.7
3.7
25.9
14.8
51.9
2011
5.0
0.0
40.0
5.0
50.0
2012
32.7
5.5
34.5
9.1
18.2
2013
1.5
7.5
55.2
23.9
11.9
2014
13.4
32.0
35.1
17.5
2.1
2015
13.3
17.3
36.0
24.0
9.3
2016
2.9
14.5
39.1
27.5
16.0
2017
1.4
4.2
52.1
28.2
14.1
2018
1.3
6.8
56.8
16.2
18.9
2019
1.6
3.2
46.8
22.6
25.8
2020
7.4
22.1
39.7
20.6
10.3
Nacional
2003
51.8
12.9
15.7
14.3
5.3
2004
41.2
21.9
21.4
10.3
5.3
2005
42.0
22.0
19.0
12.0
5.0
2006
40.4
25.3
17.6
11.3
5.4
2007
38.2
30.2
17.6
9.4
4.6
2008
40.6
25.3
20.5
9.5
4.1
2009
41.0
26.8
19.7
7.9
4.6
2010
42.3
27.5
18.9
7.5
3.8
2011
35.0
31.1
23.1
7.8
3.0
2012
40.7
26.2
21.3
9.6
2.2
2013
26.2
30.4
34.3
7.5
1.6
2014
31.4
27.1
33.6
6.0
1.8
2015
55.9
15.0
20.6
6.0
2.5
2016
57.5
13.9
18.6
6.4
3.6
2017
53.6
12.9
23.0
7.0
3.5
2018
50.8
11.9
26.9
6.9
3.5
2019
42.6
13.5
28.8
10.1
5.0
2020
51.5
12.3
26.0
7.8
2.4
NOTAS DE LA VARIABLE
| Porcentaje de sitios de monitoreo en cuerpos de agua superficiales que miden DBO5, según el nivel reportado de calidad del agua. |
DBO5: Demanda Bioquímica de Oxígeno a cinco días. Determina la cantidad de materia orgánica biodegradable. Es un indicativo de la cantidad de materia órganica presente en los cuerpos de agua, proveniente principalmente de las descargas de las aguas residuales tanto de origen municipal como no municipal. Los valores de DBO5 se expresan en mg/l; de acuerdo con este indicador, los niveles de calidad del agua son los siguientes: Excelente, si: DBO5 <= 3 Buena, si: 3 < DBO5 <= 6 Aceptable, si: 6 < DBO5 <= 30 Contaminada, si: 30 < DBO5 <= 120 Fuertemente contaminada, si DBO5 > 120 Simbología: "<", menor que;" >", mayor que; "<=", menor o igual que. |
FUENTES
| Comisión Nacional del Agua, Estadísticas del Agua en México Ediciones 2005-2018. Secretaría del Medio Ambiente y Recursos Naturales, México. |
| Comisión Nacional del Agua, Gerencia de Calidad del Agua, Septiembre, 2021. |
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