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We investigate heterogeneous oxidation kinetics of monolayer‐thick, surface‐sorbed organics, namely di‐n‐octyl phthalate (DnOP) and palmitic acid (PA), with gas‐phase OH. The pseudo‐first order rate constants for organic loss at OH concentrations of 1.6 × 108 molecules/cm3 are: (2.3 ± 0.1) × 10−4 to (4.8 ± 0.8) × 10−4 s−1, and (1.3 ± 0.5) × 10−4 s−1 for DnOP and PA, respectively. Films developed in...
Ambient levels of chlorinated gases and aerosol components were measured by online chemical ionization and aerosol mass spectrometers after an indoor floor were repeatedly washed with a commercial bleach solution. Gaseous chlorine (Cl2, 10's of ppbv) and hypochlorous acid (HOCl, 100's of ppbv) arise after floor washing, along with nitryl chloride (ClNO2), dichlorine monoxide (Cl2O), and chloramines...
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