1. Department of Chemistry, Umeå University, Umeå, SE-90187, Sweden
2. Great Lakes Ecosystem Management Section, Environment and Climate Change Canada, Burlington, Ontario L7R 4A6, Canada
3. Water Quality Monitoring and Surveillance Division, Environment and Climate Change Canada, Burlington, Ontario L7R 4A6, Canada
4. Graduate School of Oceanography, University of Rhode Island, Narragansett, Rhode Island 02882, United States
5. Aquatic Contaminants Research Division, Environment and Climate Change Canada, Burlington, Ontario L7R 4A6, Canada
6. Air Quality Processes Research Section, Environment and Climate Change Canada, Egbert, Ontario L0L 1N0, Canada