Randomized trial examines PM 2.5 variations in New York City due to Canadian wildfire smoke, indicating significant air quality concerns.
Key Points
This research aims to understand how smoke from the June 2023 Canadian wildfires affected air quality in New York City, focusing on PM 2.5 concentrations.
Utilized in situ observations, satellite retrievals, and trajectory analysis.
Employed emissions estimates from the Regional Advanced Baseline Imager and Integrated Monitoring System.
Analyzed data from the NYS Mesonet Profiler Network and ERA5 reanalysis to determine the influence of cyclonic activity.
Smoke aerosols primarily remained in the boundary layer and lower troposphere.
Daily wildfire emission intensity led to fluctuations in PM 2.5 concentrations in New York City.
A quasi-stationary extratropical cyclone played a crucial role in transporting smoke for three consecutive days.