Formerly known as the Aquatic Toxicity Workshop (ATW), CEW is Canada’s predominant annual meeting in the field of ecological toxicology and related disciplines.  It provides the opportunity to share information on current and emerging topics of regional, national and international importance related to contaminants in ecosystems, both aquatic and terrestrial. Participants include students, academics, government scientists and regulators, environmental consultants, and industry representatives. For more information about the CEW, see About.

CEW 2021 – Halifax

Call for Abstracts is Open Now!!!


Mark your calendar – CEW is back!  The first-ever Hybrid event for CEW will be taking place October 3 to 6, 2021! The CEW Hybrid format will support both in-person attendees in Halifax and virtual attendees while still maintaining the atmosphere of learning and fellowship that CEW has been successfully providing for over 47 years.

Looking forward to seeing you this fall….in Halifax or virtually!

  • Date: October 3 – 6th 2021
  • Session Topics

Agriculture Inputs: Nutrients and Pesticides
Aquaculture and Forestry Industry
Aquatic Toxicology
Boat Harbour
Community Base Monitoring with First Nations/Indigenous Services
Ecotoxicology in a changing climate (Global warming, Ocean acidification, etc.)
Environmental DNA – Applications for Biomonitoring and Bioassessment
Emerging Contaminants of Concern (PFAS, Microplastics, etc)
Environmental Effects Monitoring
Legacy Contamination and Remediation
Metals and Mining
Nano and Molecular Toxicology
Ocean Plastics and Microplastics
Offshore Drilling, Oil
Pharmaceuticals and Personal Care Products (PPCPs)
Reproductive and Developmental Toxicity
Risk Assessment and Management
Sediment and Soil Assessment
Toxicokinetics and Biotransformation
Wildlife Toxicology