Light absorption and thermal measurements of black carbon in different regions of Canada

International audienceA study was conducted to determine the relationship between light absorption measurements from an aethalometer and a particle soot absorption photometer (PSAP) and black carbon mass concentrations across Canadian environments ranging from urban to remote areas. To achieve this, filter samples were collected for thermal analysis of black carbon simultaneously with light absorption measurements at several locations in Canada. Previously, it has been shown that the k relating particle light absorption to black carbon measured with an aethalometer changes with age, type, and composition of the aerosol, which varies with time and by space