This project supports the planned renewal of the Regional Ground-Level Ozone Strategy (RGLOS) for Metro Vancouver. Specifically, the project investigated the background levels of ground-level ozone from the decommissioned Marine Boundary Layer Station (MBLS) in Ucluelet, B.C. One main focus was to find the underlying trend of background ozone over the seven years of operation of the MBLS after removing for seasonality and other contributing variables.
The project also explored the impact of precursor emissions on MBLS background ozone levels, classified geographic source regions of ozone levels on a given day based on back-trajectories, and compared MBLS to ozone trend levels at other Pacific Northwest monitoring stations.
Partner: Metro Vancouver
Keywords: air quality