Kishore Kumar Jagadeesan, Kathryn Proctor, Richard Standerwick, Ruth Barden, Barbara Kasprzyk-Hordern
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Predicting Pharmaceutical Concentrations and Assessing Risks in the Aquatic Environment Using PERK: A Case Study of a Catchment Area in South-West England
The aim of this study was to introduce a model to predict pharmaceuticals concentrations in the aquatic environment and their environmental impacts using the Risk Quotient (RQ) approach. The model was trained using: (i) high resolution dataset on pharmaceuticals’ concentration in wastewater and receiving environment in a river catchment, (ii) understanding of pharmaceuticals’ discharge points in the catchment, (iii) fate of pharmaceuticals during wastewater treatment and in the receiving environment, (iv) high resolution per-postcode pharmaceutical prescription data. A total of 41 pharmaceuticals were evaluated, with successful predictions achieved for concentrations falling within the range of 0.7 (influent: 37%, effluent: 39%, river: 29%) to 1% (influent: 56%, effluent: 58%, river: 48%) of the measured values. Importantly, our risk assessment demonstrates significant environmental risks associated with specific pharmaceuticals, with strong alignment (86%) between assessments based on predicted and measured data, underscoring the reliability of our model in assessing environmental risks. The observed variability in predicted and measured concentrations underscores the necessity for ongoing model refinement, particularly in regions with notable discrepancies such as wastewater treatment plant (WWTP) C. Overall, our study illustrates the intricate dynamics of pharmaceutical contamination in aquatic ecosystems, emphasizing the crucial need for continued research in this field.
期刊介绍:
Water Research, along with its open access companion journal Water Research X, serves as a platform for publishing original research papers covering various aspects of the science and technology related to the anthropogenic water cycle, water quality, and its management worldwide. The audience targeted by the journal comprises biologists, chemical engineers, chemists, civil engineers, environmental engineers, limnologists, and microbiologists. The scope of the journal include:
•Treatment processes for water and wastewaters (municipal, agricultural, industrial, and on-site treatment), including resource recovery and residuals management;
•Urban hydrology including sewer systems, stormwater management, and green infrastructure;
•Drinking water treatment and distribution;
•Potable and non-potable water reuse;
•Sanitation, public health, and risk assessment;
•Anaerobic digestion, solid and hazardous waste management, including source characterization and the effects and control of leachates and gaseous emissions;
•Contaminants (chemical, microbial, anthropogenic particles such as nanoparticles or microplastics) and related water quality sensing, monitoring, fate, and assessment;
•Anthropogenic impacts on inland, tidal, coastal and urban waters, focusing on surface and ground waters, and point and non-point sources of pollution;
•Environmental restoration, linked to surface water, groundwater and groundwater remediation;
•Analysis of the interfaces between sediments and water, and between water and atmosphere, focusing specifically on anthropogenic impacts;
•Mathematical modelling, systems analysis, machine learning, and beneficial use of big data related to the anthropogenic water cycle;
•Socio-economic, policy, and regulations studies.