title: Calculation of the ecological risk index in the José Antonio Alzate Dam, State of Mexico, Mexico.
abstract: Due to the problem of contamination in the Jose Antonio Alzate dam, located in the State of Mexico, Mexico, the partition coefficient, the contamination degree, and the ecological risk index of nine metals were calculated in order to establish the water quality in different areas of the Alzate dam. The sampling sites were selected according to the river flow into the dam, via three sampling programs, the physical-chemical parameters were measured in situ, and the samples were collected to measure metals in the dissolved phase and also as suspended particulate matter. Thomann's model was used to calculate the partition coefficient. Håkanson's methodology was used to determine the degree of contamination and the ecological risk index. Finally, the water quality criteria for the dissolved metals were calculated. The results for suspended particulate matter suggest a moderate risk of metal contamination in the dam. Copper and lead in dissolved form exceeded the values of water quality criteria.
authors.affiliation: Departamento de Posgrado, Instituto Tecnológico de Toluca, Av. Tecnológico S/N, Col. Ex-rancho la Virgen, Metepec, State of México, Mexico. edgarlg2000@yahoo.com
authors.forename: Edgar
authors.initials: E
authors.lastname: López-Galván
authors.forename: Icela
authors.initials: I
authors.lastname: Barceló-Quintal
authors.forename: Hugo E
authors.initials: HE
authors.lastname: Solís-Correa
authors.forename: Anne Laure
authors.initials: AL
authors.lastname: Bussy
authors.forename: Pedro
authors.initials: P
authors.lastname: Avila-Pérez
authors.forename: Sergio Martínez
authors.initials: SM
authors.lastname: Delgadillo
mesh_terms: D002104:Cadmium / Q000032:analysis; D002857:Chromium / Q000032:analysis; D003300:Copper / Q000032:analysis; D004463:Ecology; D004784:Environmental Monitoring / Q000379:methods; D007854:Lead / Q000032:analysis; D008670:Metals / Q000032:analysis*; D008800:Mexico; D010316:Particle Size; D012306:Risk; D045483:Rivers; D014874:Water Pollutants, Chemical / Q000032:analysis*; D014881:Water Supply / Q000032:analysis*
chemical_list: D008670:Metals; D014874:Water Pollutants, Chemical; D002104:Cadmium; D002857:Chromium; D007854:Lead; D003300:Copper