A Water Quality Index (WQI) is a useful statistical tool for simplifying, reporting and interpreting complex information obtained from any body of water. simple number given by WQI model explains the level water contamination. The objective was to develop Luis L. Leon dam located in state Chihuahua, Mexico. Monthly samples were 2009; January 10, February 12, March 8, May 20, June July 9, August September October 11, November 15 December 13. Ten sampling sites randomly selected after dividing...

Pollution levels have been increasing in water ecosystems worldwide. A quality index (WQI) is an available tool to approximate the of and facilitate work decision-makers by grouping analyzing numerous parameters with a single numerical classification system. The objective this study was develop WQI for dam used irrigation about 5000 ha agricultural land. dam, La Vega, located Teuchitlan, Jalisco, Mexico. Seven sites were selected sampling samples collected March, June, July, September,...

The objective of this study was to determine the seasonal and downstream water quality variations San Pedro River in Chihuahua, Mexico. Water samples were collected monthly from October 2005 August 2006 triplicate, totaling 165 samples. five sampling locations were: below Francisco I. Madero dam (LP); between Rosales Delicias (RD); Meoqui (M); El Torreon (ET), Julimes (LJ). levels As, Be, Ca, Cd, Co, Cu, Cr, Fe, Li, Mg, Mn, Mo, Ni, Pb, Sb, Se, Sr, Ti, Ta, V Zn measured using an Inductively...

Pollutants from pig farms in Mexico have caused problems many surface water reservoirs. Growing concern has driven the search for low-cost wastewater treatment solutions. The objective of this research was to evaluate potential an in-series constructed wetland remove nutrients a farm. system had horizontal flow that consisted three cells, first wetland, second sedimentation cell, and third subsurface wetland. vegetation used Thypa sp. Scirpus A mix soil with red volcanic rock (10–30 mm...

A Water Quality Index (WQI) is a simple numeric expression reflecting the quality of water in any ecosystem at given time. The objective this study was to develop WQI for man-made dam Francisco I. Madero located Chihuahua, Mexico. Eight points were randomly selected area and each point samples collected monthly from March 2011 February 2012 three depths; 0.30 m, 5 m 10 m. following physical-chemical variables measured: potential hydrogen (pH), electrical conductivity (EC), dissolved oxygen...

Pollution of freshwater ecosystems from polycyclic aromatic hydrocarbons (PAHs) is a global concern. The US Environmental Protection Agency (EPA) has included the PAHs pyrene, phenanthrene, and naphthalene among 16 priority compounds special concern for their toxicological effects. aim this study was to adapt characterize microbial consortium ore waste with potential remove these three water. This exposed target at levels 5, 10, 20, 50, 100 mg L

Presently, water contamination issues are of great concern worldwide. Mexico has not escaped this environmental problem, which negatively affects aquifers, bodies and biodiversity; but most all, public health. The objective was to determine the level in six tributaries Conchos River relate their levels human health risks. Bimonthly samples were obtained from each location during 2005 2006. Physical-chemical variables (temperature, pH, electrical conductivity (EC), Total solids total...

The availability of good quality water resources is essential to ensure healthy crops and livestock. objective this study was evaluate the level pollution in Bustillos Lagoon northern Mexico. Physical-chemical parameters like sodium, chloride, sulfate, electrical conductivity, nitrates, pesticide dichlorodiphenyltrichloroethane (DDT) were analyzed determine available lagoon. Although DDT has been banned several countries, it still used for agricultural purposes Mexico its presence area had...

La zeolita se ha utilizado de forma efectiva para la adsorción iones en agua contaminada. El objetivo fue evaluar remoción metales pesados utilizando filtros empacados con una natural diferente granulometría. Se evaluaron cuatro tratamientos: 70 mm (T1-grande), 30 (T2-mediano), 500 μm (T3-chico) y combinación (T4-mixto). concentración Ag, Al, As, Au, B, Ba, Be, Bi, Ca, Cd, Co, Cr, Cu, Fe, Hg, K, Li, Mg, Mo, Na, Ni, P, Pb, Sb, Se, Sn, Sr, Tu, Ti, Tl, V, W Zn medida cruda (AC), cual empleó...

De la Mora-Orozco, C., Flores-Garnica, J. G., Flores-López, H. E., Rubio-Arias, O., Chávez-Durán, A. A., Ochoa-Rivero, M., & García-Velasco, (enero-febrero, 2018). Variaciones espacio-temporales y modelaje de concentración oxígeno disuelto en el lago Chapala, México. Tecnología Ciencias del Agua, 9(1), 39-52, DOI: 10.24850/j-tyca-2018-01-03. La disminución (OD) ecosistemas acuáticos alrededor mundo ha afectado su calidad. El objetivo fue estimar variación espacio-temporal OD agua Fueron...

Radon (222Rn) is an odorless and tasteless gas that known to cause lung cancer. The objective of this research was quantify the levels exposure radon among people living in environment rich uranium (U). concentrations were measured for 3 days 12 homes Aldama, Mexico. Homeowners agreed participate study; hence, sample non-probabilistic. with a portable AlphaGuard Monitor (Genicron Instruments GmbH), which placed bedroom each home at height 0.74 m. Gas registered Becquerels (Bq m−3), readings...

Restoration of riparian areas is an important step toward improving water flow and quality the Río Conchos in northern Mexico. To provide background data for restoration decisions we characterized ecological integrity a 40-km-long corridor along middle Conchos. The characterization consisted determining dominant species trees shrubs, structure, habitat using standard transect sampling habitat-quality index (QBR index) corridor. Our indicate that willow (Salix nigra) mesquite (Prosopis...

Recreational water use provides important benefits for human health; nevertheless, there can be adverse effects if the is polluted. Aim of this work was to develop a Water Quality Index (RWQI) Colina Lake in Mexico. samples were collected from March 2011 February 2012 at seven random locations and three depths (0.30 m, 1.0 m 2.0 m). Parameters analyzed pH, electrical conductivity (EC), total dissolved solids (TDS), oxygen (DO), temperature (T), turbidity, hardness (TH) chlorides (Cl-) (TC)...

This study investigated metal contamination levels in soils at six points along a riparian area of the Conchos watershed Chihuahua, Mexico. Soil samples were collected from surface horizon (0-15 cm) as well two subsurface horizons (15-30 cm and 30-50 cm). Cadmium, sodium, manganese, lead, copper, iron zinc concentrations determined by flame atomic absorption spectrometry while arsenic mercury calculated hydrourous-generator spectrometry. Also measured pH, M.O.(%), CaCO3(%), H.C., CE, N-NO3...

Lago de Colina (Colina Lake) is located about 180 km south of the city Chihuahua (Mexico), and during Semana Santa (Holy Week) vacation period its recreational use high. The objective this study was to quantify coliform heavy metal levels in water body before after Holy Week 2010. Twenty sampling points were randomly selected two samples collected at each point near surface (0.30 m) 1 m depth. After same twenty sampled depths. Therefore, a total 80 analyzed for fecal coliforms following...

The hydraulic Conchos Watershed is essential for the inhabitants of state Chihuahua, Mexico.Nevertheless, evidence shows that water flows in River contaminated.The objective was to determine if Vanadium (V) and Lithium (Li) were present River.During 2004 2005 six points located different tributaries obtaining samples.The Zaragoza (Z), Satevo (S), Florido (F), Parral (P), Chuviscar (CH) Ojinaga (O).The samples collected at 2-monthly intervals.Both elements determined using an Inductively...

Groundwater and domestic wastewater are often used in conjunction with surface water to irrigate crops semiarid areas. A concern associated this practice is the potential accumulation of arsenic (As) heavy metals soil plants, especially places where irrigation contains geogenic As. Studies on uptake cereal growing under dry oxidizing conditions scarce. one-year field experiment was conducted evaluate translocation As barley oats irrigated either groundwater (GW) or treated (TWW) northern...

Natural zeolites have been employed to adsorb contaminants in water. This study is aimed evaluate the cation and anion leaching from zeolite after wastewater was passed through filters packed with a natural (heulandite-CaAl2Si7O18·6H2O). Eight treatments were evaluated 2 × factorial treatment design. Factor A two levels: 127 g 80.4 g. B nanoparticles one bag (3.19 g) bags (6.39 g); C use of magnet: without. There replications; hence, total 16 employed. The water obtained municipal plant...

There exist potential health risks due to the presence of some elements in groundwater. This study presents measurements gross alpha and beta activity chemical concentrations (fluorides nitrates) 25 water wells Aldama municipality, Chihuahua, Mexico. Total emitter analyses were performed at Academic Unit Nuclear Studies Autonomous University Zacatecas. Radioactive concentrated by total evaporation. All samples measured with a Wallac-Oy 1411 liquid scintillate pulse separation option (Pulse...

Las fermentaciones frecuentemente requieren la adición de nutrientes o inóculos, así como el control ciertos parámetros. Esto aumenta los costos operativos y dificulta su implementación, especialmente en lugares donde no hay interés tratar residuos orgánicos. El objetivo fue realizar una fermentación sumergida sin inóculo utilizando solo frutas verduras para evaluar cantidad ácidos orgánicos actividades enzimáticas alternativa obtener productos alto valor agregado. Para ello, desechos...

Sotol (Dasylirion spp.) is a native plant of the Chihuahuan desert, used in production alcoholic beverages. The Mexican Council (CMS) and Certification (CCS) supervise compliance with NOM-159-SCFI-2004 official standard; these organizations also fulfil other functions. objective this study was to carry out an economic financial feasibility analysis greenhouse sotol seedlings grown under seedbed conditions. cost data were obtained from module established municipality Meoqui, Chihuahua,...

There is a general belief that high levels of arsenic are found in waters the northern states Mexico.In order to test this hypothesis, research was conducted with objective determining San Pedro River located state Chihuahua, Mexico.From October 2005 August 2006 on monthly basis, water samples were collected at five points along River.Three repetitions each point resulting total 165 samples.Total concentration L -1 detected an Inductively Coupled Plasma-Optical Emission Spectrometer...

Under the current climate crisis, ecological integrity of forest ecosystems is key to increasing resilience and sustainability water soil resources. Most forests around world have experienced deforestation degradation in past few decades; however, rate at which these occur varies depending on many factors, including type trees, management, climate. We conducted a review deforestation, degradation, erosion pine-oak within Rio Conchos basin northern Mexico. Preference was given recent studies...