TY  - EJOU
AU  - Alvarez, Amado  
AU  - Panta, Enrique Rubiños  
AU  - Reyes, Francisco Gavi  
AU  - Cabañero, Juan José Alarcón  
AU  - Acosta, Elizabeth Hernández  
AU  - Ayala, Carlos Ramírez  
AU  - Saenz, Enrique Mejía  
AU  - Salcedo, Francisco Pedrero  
AU  - Nicolas, Emilio   
AU  - Sosa, Enrique Salazar  

TI  - Water quality in the basin of the Amajac river, Hidalgo, Mexico: Diagnosis and prediction
T2  - Phyton-International Journal of Experimental Botany

PY  - 2006
VL  - 75
IS  - all
SN  - 1851-5657

AB  - A water quality index as a standardized method to compare the category in an integral way, between locations and through time, of the different water, river and stream storages of the Amajac river basin was developed. In addition, it is possible to predict the degree of contamination and establish planning strategies in the management of the water resources for the river basin in issue. The used methodology was based in the quantitative expression of water quality. Three samplings were made (2005-2006) and Dissolved Oxygen, Coliform in feaces, pH, Oxygen Biochemical Demand, Nitrates, Total Phosphorus, Turbidity and Dissolved Total Solids were determined. To predict integral water quality (IWQ), a multiple regression analysis between IWQ and the eight parameters was made. Later on, behavior patterns were identified and mathematical models were developed for each variable. Results indicate that water quality for urban, the drinking water, fishtank and agricultural uses was of medium quality (WQI= 50-69) in 29% of the sampling sites within the hydrologic basin of the Amajac River. At the same time, 59% of the locations were of bad quality (IWQ = 30-49). Finally, 12% of the sites were highly contaminated (IWQ < 30). The best fit for the analyzed parameters was obtained with the cubic models.
KW  - integral water classification
KW  -  hydrologic river basin
KW  -  mathematical models

DO  - 10.32604/phyton.2006.75.071