Occurrence and Behavior of Illicit Drugs and Metabolites in Sewagewater from the Spanish Mediterranean Coast (valencia Region) Occurrence and Behavior of Illicit Drugs and Metabolites in Sewage Water from the Spanish Mediterranean Coast (valencia Region)

نویسندگان

  • Lubertus Bijlsma
  • Roque Serrano
  • Carlos Ferrer
  • Isabel Tormos
  • Félix Hernández
چکیده

Cita bibliográfica / Cita bibliogràfica (ISO 690): BIJLSMA, Lubertus, et al. Occurrence and behavior of illicit drugs and metabolites in sewage water from the Spanish Mediterranean coast (Valencia region). Abstract In this work, a study on the occurrence and behavior of illicit drugs and metabolites in sewage water systems has been made. A comprehensive dataset was obtained by analyzing illicit drugs daily in influent and effluent waters from three sewage treatment plants (STPs), over three different weeks. To complete this dataset, monitoring was conducted during an international pop/rock festival, an interesting facet within this study. The STPs selected were sited along the Spanish Mediterranean coast (Castellón province, Valencia region) and represent towns of different sizes, with appreciable variations in the population in the summer period. Illicit drug concentrations in the influents were low, except during the celebration of the music festival, when the levels of cocaine, benzoylecgonine, amphetamine, MDA and MDMA increased. Comparing the influent and effluent concentration data allowed the rough estimation of the removal of illicit drugs and metabolites by each STP. Removal efficiencies were estimated between 75 and 100% for most of the analytes under investigation. The loads discharged into the aquatic ecosystem were also calculated from effluent data. Weekly discharges of drugs and metabolites via effluent sewage waters presented values commonly below 10 g for each individual drug, with the exception of benzoylecgonine, which usually exceeded this level. The increase in population and drug consumption during the music event led to a notable increase in the weekly discharges, reaching values up to 406 g of MDMA and 122 g of benzoylecgonine.

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تاریخ انتشار 2015