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May 24, 2026Environmental PollutionOpen Access

Diversity of contaminants of emerging concern in a semi-arid groundwater system

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Authors

CMChifae EL MEKNASSISTSarah TWEEDCBChristine Baduel

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Overview

Spatial analysis shows significant groundwater contamination from WWTPs in semi-arid aquifers, highlighting pollution risks.

Key Points

  • Determine the diversity and sources of contaminants of emerging concern (CECs) in a semi-arid groundwater system.
  • Conducted spatial and statistical analyses to identify sources of CECs
  • Measured the presence and distance of CECs from wastewater treatment plants
  • Evaluated groundwater depth effects on CEC presence
  • CECs were most diverse within 3 km of wastewater treatment plants, with notable persistence of carbamazepine and caffeine.
  • Long-range transport of CECs was observed up to 18 km downgrading from sources.
  • Elevated risks of far-field pollution were indicated, with few significant correlations to hotspots.

Cite This Study

MEKNASSI et al. (2026) studied this question.

synapsesocial.com/papers/6a12949848a0ea1665670f44https://doi.org/10.1016/j.envpol.2026.128367
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