Photochemical Processing of Inorganic and Organic Species in the Canadian High Arctic Aerosols: Impact of Ammonium Cation, Transition Metals, and Dicarboxylic Acids before and after Polar Sunrise at Alert

• Main Authors: Dharmendra Kumar Singh (7484093), Kimitaka Kawamura (1770541), Pingqing Fu (1517941), Hideki Kasukabe (11347611), Ayako Yanase (4325674), Leonard A. Barrie (2371558)
• Format: Other Non-Article Part of Journal/Newspaper
• Language: unknown
• Published: 2021
• Subjects: Microbiology; Ecology; Plant Biology; Environmental Sciences not elsewhere classified; Astronomical and Space Sciences not elsewhere classified; Biological Sciences not elsewhere classified; Chemical Sciences not elsewhere classified; alkaline earth metals; suggesting photochemical production; substantially correlated (<; ec stayed low; ammonium availability index; 3 transition metals; oc ratios peaked; alert temporal variations; sup >+</ sup; 2 </ sup; soluble organic carbon; organic aerosols ); transition metals; organic carbon; organic aerosols; strongly correlated; photochemical processing; ec ); ammonium cation; >< sup; r </; p </; organic species; organic salts; elemental carbon; sunrise ); study demonstrates; strong correlations; significant predictor; significant correlations; significant correlation; research gap; range transport; questions raised; previous study; oxalic acid; mg ); march together; fenton reaction; fenton chemistry; dicarboxylic acids; correlation statistics; correlation decreases; concurrently studied; carbonaceous components; 89 %); 5 cations; Arctic; Fenton
• Online Access: https://doi.org/10.1021/acsearthspacechem.1c00242.s001

Temporal variations and correlation statistics of major inorganic and organic species and carbonaceous components of the total suspended particulate matter (TSPM) at Alert were concurrently studied. Organic carbon (OC) and water-soluble organic carbon (WSOC) declined from February to mid-March toget...