A5101995096- Water Treatment and Disinfection
- Membrane Separation Technologies
- Fecal contamination and water quality
- Water Systems and Optimization
- Pharmaceutical and Antibiotic Environmental Impacts
- Microplastics and Plastic Pollution
- Wastewater Treatment and Reuse
- Environmental Chemistry and Analysis
- Water Quality Monitoring and Analysis
- Urban Stormwater Management Solutions
- Recycling and Waste Management Techniques
- Membrane-based Ion Separation Techniques
- Advanced oxidation water treatment
- Odor and Emission Control Technologies
- Chemical Analysis and Environmental Impact
- Wastewater Treatment and Nitrogen Removal
- Air Quality Monitoring and Forecasting
- Water Quality Monitoring Technologies
- Coagulation and Flocculation Studies
- Toxic Organic Pollutants Impact
- Extraction and Separation Processes
- Child Nutrition and Water Access
- Parasitic Infections and Diagnostics
- Corrosion Behavior and Inhibition
- Analytical Chemistry and Sensors
University of Toronto
2014-2023
Toronto Public Health
2018-2020
University of Alberta
1987-2020
Natural Sciences and Engineering Research Council
2011-2019
Navarro College
2015
Acadia University
2008
Fondation pour la Recherche Stratégique
2008
Southeast Missouri State University
2007
Canada Research Chairs
2006
University of New Brunswick
2006
Plastic pollution is a defining environmental contaminant and considered to be one of the greatest threats Anthropocene, with its presence documented across aquatic terrestrial ecosystems. The majority this plastic debris falls into micro (1 μm–5 mm) or nano (1–1000 nm) size range comes from primary secondary sources. Its small makes it cumbersome isolate analyze reproducibly, ubiquitous distribution creates numerous challenges when controlling for background contamination matrices (e.g.,...
Formation of nine N-nitrosamines has been investigated when seven different source waters representing various qualities were each treated with eleven bench-scale disinfection processes, without addition nitrosamine precursors. These treatments included chlorine (OCl−), chloramine (NH2Cl), dioxide (ClO2), ozone (O3), ultraviolet (UV), advanced oxidation processes (AOP), and combinations. The total organic carbon (TOC) the ranged from 2 to 24 mg·L−1. disinfected water samples untreated...
Certain unregulated disinfection byproducts (DBPs) are more of a health concern than regulated DBPs. Brominated species typically cytotoxic and genotoxic their chlorinated analogs. The impact granular activated carbon (GAC) on controlling the formation selected DBPs following chlorine was evaluated. predicted cyto- genotoxicity calculated using published potencies based comet assay for Chinese hamster ovary cells (assesses level DNA strand breaks). Additionally, measured SOS-Chromotest...
The occurrence of microplastics in drinking water has drawn increasing attention due to their ubiquity and unresolved implications regarding human health. Despite achieving high reduction efficiencies (70 >90%) at conventional treatment plants (DWTPs), remain. Since consumption represents a small portion typical household use, point-of-use (POU) devices may provide the additional removal (MPs) prior consumption. primary objective this study was evaluate performance commonly used...
Studies have shown that viruses are frequently attached onto or enmeshed within suspended particles in natural water and wastewater this viral–particle association can impede disinfection processes some circumstances. This article summarizes the current state of knowledge occurrence particle-associated aquatic environment reported subsequent impacts on processes. The intention is will help guide future research aid regulators attempting to address particle-laden waters.
ABSTRACT Cryptosporidium parvum , which is resistant to chlorine concentrations typically used in water treatment, recognized as a significant waterborne pathogen. Recent studies have demonstrated that dioxide more efficient disinfectant than free against oocysts. It not known, however, if oocysts from different suppliers are equally sensitive dioxide. This study both most-probable-number–cell culture infectivity assay and vitro excystation evaluate inactivation kinetics laboratory at pH 8...
Increases in the global use of plastics have caused concerns regarding potential adverse effects on human health. Plastic products contain hundreds potentially toxic chemical additives, yet exact chemicals which drive toxicity currently remain unknown. In this study, we employed nontargeted analysis and vitro bioassays to identify drivers plastics. A total 56 additives were tentatively identified five commonly used plastic polymer pellets (i.e., PP, LDPE, HDPE, PET, PVC) by employing suspect...