Eutrophication Levels through San Pedro-Mezquital River Basin


This paper presents an eutrophication diagnosis for the San Pedro-Mezquital basin at Mexico; procedure accounted to set up 10 sampling points distributed along the river pathway, sample collection was done at two extreme conditions: rainy season and dry season. Five parameters were analyzed in this work: pH, % Dissolved Oxygen, reactive phosphorus, and nitrogen species as nitrate and ammonia compounds. Obtained concentrations were statistically analyzed to establish if there were significant differences among sites and between seasons; being the dry season the one with higher nutrient content, ammonia can be considered statistical significance due to the total values found for each season. Calculation of the Karydis eutrophication index for each parameter showed that more damaged sites were those nearby the cities, and most of the sampled sites belonged to the eutrophic category.

Share and Cite:

M. Pérez-López, M Sánchez-Martínez, M. Vicencio-de la Rosa and M. Teutli-León, "Eutrophication Levels through San Pedro-Mezquital River Basin," Journal of Environmental Protection, Vol. 4 No. 11A, 2013, pp. 45-50. doi: 10.4236/jep.2013.411A006.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] A. McQuatters-Gollop, A. J. Gilbert, L. D. Mee, J. E. Vermaat, Y. Artioli, C. Humborg and F. Wulff, “How Well Do Ecosystem Indicators Communicate the Effects of Anthropogenic Eutrophication,” Estuarine, Coastal and Shelf Science, Vol. 82, No. 4, 2009, pp. 583-596.
[2] L. W. Canter, “Environmental Impact Assessment,” 2nd Edition, McGraw-Hill, 1998.
[3] D. Chapman, “Water Quality Assessment,” 1st Edition, Chapman and Hall, London, 1992.
[4] National Water Commission (NWC), “The polluted Tunal River: San Pedro Basin Restoration Project,” 1st Edition, CNA, 2005.
[5] S. Bonilla, “Planktonic Cyanobacteria from Uruguay, Identification and Management Manual,” 1st Edition, Regional Office for Science of UNESCO for Latin-American and the Caribbean, Uruguay, Montevideo, 2009.
[6] X. Yang, X. Wu, H. L. Hao and Z. L. He, “Mechanisms and assessment of water eutrophication,” Journal of Zhejiang University SCIENCE A, Vol. 9, No. 3, 2008, pp. 197-209.
[7] V. H. Smith, G. D. Tilman and J. C. Nekola, “Eutrophication: Impacts of Excess Nutrient Inputs on Freshwater, Marine, and Terrestrial Ecosystems,” Environmental Pollution, Vol. 100, No. 1-3, 1999, pp. 179-196.
[8] WWF, “Integrated Management of the San Pedro-Mezquital River Basin,” 2008.
[9] S. L. Miliarium Aureum, “Aquifer Vulnerability,” 2008.
[10] APHA American Public Health Association, “Standard Methods for the Examination of Water and Wastewater Analysis,” 19th Edition, AWWA-WEF, Washington D.C., 1995.
[11] C. N. Aranda, “Eutrophication and Water Quality in a Tropical Costal Zone,” Ph.D. Doctoral Thesis, University of Barcelona, Barcelona, 2004.

Copyright © 2022 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.