Significant enhancements of nitrogen oxides, black carbon, and ozone in the North Atlantic lower free troposphere resulting from North American boreal wildfires

• Published in: Journal of Geophysical Research: Atmospheres
• Other Authors: Val Martin, M. (author), Honrath, R. (author), Owen, R. (author), Pfister, Gabriele (author), Fialho, P. (author), Barata, F. (author)
• Format: Article in Journal/Newspaper
• Language: English
• Published: American Geophysical Union 2006
• Subjects: ICARTT; North Atlantic troposphere; Atmospheric composition and structure: North Atlantic
• Online Access: http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-004-709; https://doi.org/10.1029/2006JD007530

Extensive wildfires burned in northern North America during summer 2004, releasing large amounts of trace gases and aerosols into the atmosphere. Emissions from these wildfires frequently impacted the PICO-NARE station, a mountaintop site situated 6-15 days downwind from the fires in the Azores Islands. To assess the impacts of the boreal wildfire emissions on the levels of aerosol black carbon (BC), nitrogen oxides and O₃ downwind from North America, we analyzed measurements of CO, BC, total reactive nitrogen oxides (NOy), NOx (NO + NO₂) and O₃