The Border Air-Quality Study and Meteorology Study (BAQS-Met) was conducted in the region between Lakes Huron, St. Clair, and Erie, with the aim of studying the impact of lake breezes on local air-quality and long-range-transported chemistry. The study comprised a measurement-intensive field campaign from June 22 to July 10, 2007 as well as a local monitoring network that operated from the months of June through August. Aerodyne Aerosol Mass Spectrometers (AMS) were used at two supersites (Bear Creek and Harrow) and on board the NRC Twin Otter aircraft and Environment Canada (EC)'s CRUISER mobile laboratory as part of the study. Also measured aboard the aircraft were O_3, CO, SO_2, NO/NO_2, particle size distribution and number. CRUISER observations also included CO, O_3, SO_2, NO/NO_2, NOy, CO_2, selected VOCs, Black Carbon, and particle number.
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