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1 Renau-Prunonosa, A.; Garcia-Menendez, O.; Ibanez, M.; Vazquez-Sune, E.; Boix, C.; Ballesteros, B. B.; Garcia, M. H.; Morell, I.; Hernandez, F. 2020. Identification of aquifer recharge sources as the origin of emerging contaminants in intensive agricultural areas. La Plana de Castellón, Spain. Water, 12(3):731. (Special issue: Pharmaceutic Compounds, as Emerging Organic Contaminants, and their Occurrence and Transport in Groundwater: Sources, Reactions and Fate). [doi: https://doi.org/10.3390/w12030731]
Groundwater recharge ; Aquifers ; Groundwater pollution ; Pharmaceutical pollution ; Wastewater treatment plants ; Pollutants ; Water resources ; Water management ; Agriculture ; Farmland ; Coastal area / Spain / La Plana de Castellon / Rambleta
(Location: IWMI HQ Call no: e-copy only Record No: H049570)
(3.70 MB) (3.70 MB)
In urban, industrial, and agricultural areas, a vast array of contaminants may be found because they are introduced into the aquifers by different recharge sources. The emerging contaminants (ECs) correspond to unregulated contaminants, which may be candidates for future regulation depending on the results of research into their potential effects on health and on monitoring data regarding their occurrence. ECs frequently found in wastewater, such as acetaminophen, carbamazepine, primidone, and sulfamethoxazole, may be good indicators of the introduction of the reclaimed water to the aquifers. The resistance of the ECs to removal in wastewater treatment plants (WWTPs) causes them to be appropriate sewage markers. Plana de Castellón (Spain) is a coastal area that has been characterized by intensive citrus agriculture since the 1970s. Traditionally, in the southern sector of Plana de Castellón, 100% of irrigation water comes from groundwater. In recent years, local farmers have been using a mixture of groundwater and reclaimed water from wastewater treatment plants (WWTPs) to irrigate the citrus. The aims of the present study were: i) to assess the occurrences, spatial distributions, and concentrations of selected ECs, including 32 antibiotics, 8 UV filters, and 2 nonsteroidal anti-inflammatory drugs, in groundwater in a common agricultural context; ii) to identify the recharge (pollution) sources acting as the origin of the ECs, and iii) to suggest ECs as indicators of reclaimed water arrival in detrital heterogeneous aquifers. The obtained data provided relevant information for the management of water resources and elucidated the fate and behavior of emerging contaminants in similar contexts.
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