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
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
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
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
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
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
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
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
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
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
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
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
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
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

NOTAS DE LA VARIABLE

WebFOCUS Report
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


FUENTES

Comisión Nacional del Agua, Estadísticas del Agua en México Ediciones 2005-2015. Secretaría del Medio Ambiente y Recursos Naturales, México.
Comisión Nacional del Agua, Sistema Nacional de Información del Agua, consultado en: http://201.116.60.25/sina/, 18-07-2016.