Survey of 218 organic contaminants in groundwater derived from the world's largest untreated wastewater irrigation system: Mezquital Valley, Mexico
| Autor: | Hector Barrios-Piña, Arturo Hernández-Antonio, Cristina Moreau, Jürgen Mahlknecht, Aldo I. Ramírez, Abrahan Mora, Luis E. Lesser |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
volatile organic compound
010504 meteorology & atmospheric sciences groundwater resource Hydrogeology irrigation (agriculture) Endocrine Disruptors 01 natural sciences enalapril Endocrinology groundwater Water pollution phthalic acid derivative Organic contaminant degradation endocrine disruptor organic pollutant Federal District [Mexico] geography.geographical_feature_category Esters General Medicine clarithromycin Pollution Health risks Mexico City benzoylecgonine erythromycin Environmental chemistry carbamazepine gemfibrozil phthalate Environmental Engineering water transport organic compound Aquifer valsartan irrigation system Article soil triclocarban Groundwater pollution Humans naproxen Mexico [North America] trimethoprim chemical compound Groundwater resources Public Health Environmental and Occupational Health Hormones methylprednisolone meprobamate adsorption Organic pollutants metformin Mezquital Valley Water resources Agricultural Irrigation paracetamol Health Toxicology and Mutagenesis 010501 environmental sciences health hazard pollutant removal caffeine Pharmaceutically active compounds spring sulfamethoxazole Groundwater recharge water contamination metoprolol Dibutyl Phthalate unclassified drug Aquifers Wastewater Pharmaceutical Preparations bis 2 (ethylhexyl)phthalate diethyltoluamide lincomycin Environmental Monitoring Irrigation hormone phthalic acid dibutyl ester ground water Diethylhexyl Phthalate Durango [Mexico] Organic compounds Recharging (underground waters) Environmental Chemistry Volatile organic compounds cotinine wastewater Mexico 0105 earth and related environmental sciences semi volatile organic compound geography Landforms Water transport aquifer waste water water supply México General Chemistry atenolol 7 INGENIERÍA Y TECNOLOGÍA water resource Environmental science Groundwater Water Pollutants Chemical |
| Zdroj: | Chemosphere Scopus |
| Popis: | The Mezquital Valley system is the world's oldest and largest example with regard to use of untreated wastewater for agricultural irrigation. Because of the artificial high recharge associated with the Mezquital Valley aquifers, groundwater is extracted for human consumption, and there are plans to use this groundwater as a water resource for Mexico City. Thus, this study analyzed 218 organic micro-contaminants in wastewater, springs, and groundwater from Mezquital Valley. Five volatile organic compounds (VOCs) and nine semi-volatile organic compounds (SVOCs) were detected in the wastewater used for irrigation. Only two SVOCs [bis-2-(ethylhexyl) phthalate and dibutyl phthalate] were detected in all the wastewater canals and groundwater sources, whereas no VOCs were detected in groundwater and springs. Of the 118 pharmaceutically active compounds (PhACs) and 7 reproductive hormones measured, 65 PhACs and 3 hormones were detected in the wastewater. Of these, metformin, caffeine, and acetaminophen account for almost sixty percent of the total PhACs in wastewater. Nevertheless, 23 PhACs were detected in groundwater sources, where the majority of these compounds have low detection frequencies. The PhACs sulfamethoxazole, N,N-diethyl-meta-toluamide, carbamazepine, and benzoylecgonine (primary cocaine metabolite) were frequently detected in groundwater, suggesting that although the soils act as a filter adsorbing and degrading the majority of the organic pollutant content in wastewater, these PhACs still reach the aquifer. Therefore, the presence of these PhACs, together with the high levels of the endocrine disruptor bis-2-(ethylhexyl) phthalate, indicate that water sources derived from the recharge of the studied aquifers may pose a risk to consumer health. © 2018 The Authors |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|