Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. XIV
Written by Ramona-Carmen HĂRȚĂU, Simona GAVRILAȘ, Claudiu-Ștefan URSACHI, Simona PERȚA-CRIȘAN, Florentina-Daniela MUNTEANU
This study assesses the groundwater quality at the CET HIDROCARBURI ARAD site using a Global Pollution Index (IGP*) methodology that integrates multiple water quality indicators concerning legal thresholds. Water samples from three monitoring wells were collected annually over 11 years (2010-2020) and analyzed for pH, total suspended solids, fixed residue at 105°C, and chemical oxygen demand. The findings reveal that 93.94% of the samples exceeded acceptable limits based on 2008 regulatory references, with pollution levels surpassing ecological thresholds, particularly in Control Well No. 3, indicating persistent ecological stress. Despite this, long-term trends suggest overall groundwater stability, with 78.79% of historical data (2008-2017) falling within permissible ranges. Statistical analysis highlighted variations in pH and COD, suggesting localized impacts from nearby facilities such as a reagent store. The study recommends implementing a sustainable, site-specific water management plan supported by real-time monitoring and targeted assessments of emerging contaminants to enhance environmental protection and risk mitigation.
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