Matches in SemOpenAlex for { <https://semopenalex.org/work/W1993744164> ?p ?o ?g. }
- W1993744164 endingPage "347" @default.
- W1993744164 startingPage "326" @default.
- W1993744164 abstract "We report a protocol for using black carbon (BC) aerosol as the seed for secondary organic aerosol (SOA) formation in an environmental chamber. We employ a single-particle soot photometer (SP2) to probe single-particle SOA coating growth dynamics and find that SOA growth on nonspherical BC aerosol is diffusion-limited. Aerosol composition measurements with an Aerodyne high resolution time-of-flight aerosol mass spectrometer (AMS) confirm that the presence of BC seed does not alter the composition of SOA as compared to self-nucleated SOA or condensed SOA on ammonium sulfate seed. We employ a 3-wavelength photoacoustic soot spectrometer (PASS-3) to measure optical properties of the systems studied, including fullerene soot as the surrogate BC seed, nucleated naphthalene SOA from high-NOx photooxidation, and nucleated α-pinene SOA from low-NOx photooxidation. A core-and-shell Mie scattering model of the light absorption enhancement is in good agreement with measured enhancements for both the low- and high-NOx α-pinene photooxidation systems, reinforcing the assumption of a core-shell morphology for coated BC particles. A discrepancy between measured and modeled absorption enhancement factors in the naphthalene photooxidation system is attributed to the wavelength-dependence of refractive index of the naphthalene SOA. The coating of high-NOx α-pinene SOA decreases after reaching a peak thickness during irradiation, reflecting a volatility change in the aerosol, as confirmed by the relative magnitudes of f43 and f44 in the AMS spectra. The protocol described here provides a framework by which future studies of SOA optical properties and single-particle growth dynamics may be explored in environmental chambers. Copyright 2013 American Association for Aerosol Research" @default.
- W1993744164 created "2016-06-24" @default.
- W1993744164 creator A5001370428 @default.
- W1993744164 creator A5009368881 @default.
- W1993744164 creator A5012711441 @default.
- W1993744164 creator A5014472632 @default.
- W1993744164 creator A5033459302 @default.
- W1993744164 creator A5035496453 @default.
- W1993744164 creator A5076259469 @default.
- W1993744164 date "2012-12-20" @default.
- W1993744164 modified "2023-10-04" @default.
- W1993744164 title "Secondary Organic Aerosol Coating Formation and Evaporation: Chamber Studies Using Black Carbon Seed Aerosol and the Single-Particle Soot Photometer" @default.
- W1993744164 cites W1672766972 @default.
- W1993744164 cites W1969834519 @default.
- W1993744164 cites W1973885342 @default.
- W1993744164 cites W1973913788 @default.
- W1993744164 cites W1975120542 @default.
- W1993744164 cites W1975184784 @default.
- W1993744164 cites W1978939574 @default.
- W1993744164 cites W1982056270 @default.
- W1993744164 cites W1984079311 @default.
- W1993744164 cites W1987057659 @default.
- W1993744164 cites W1987820968 @default.
- W1993744164 cites W1989332057 @default.
- W1993744164 cites W1992503741 @default.
- W1993744164 cites W1993138195 @default.
- W1993744164 cites W1994499927 @default.
- W1993744164 cites W1995499409 @default.
- W1993744164 cites W1996488940 @default.
- W1993744164 cites W1997257100 @default.
- W1993744164 cites W2004920665 @default.
- W1993744164 cites W2008493342 @default.
- W1993744164 cites W2009837182 @default.
- W1993744164 cites W2011986020 @default.
- W1993744164 cites W2017737863 @default.
- W1993744164 cites W2019377763 @default.
- W1993744164 cites W2021198116 @default.
- W1993744164 cites W2022318068 @default.
- W1993744164 cites W2027537661 @default.
- W1993744164 cites W2031745442 @default.
- W1993744164 cites W2031921063 @default.
- W1993744164 cites W2035555288 @default.
- W1993744164 cites W2040704969 @default.
- W1993744164 cites W2041106491 @default.
- W1993744164 cites W2048777236 @default.
- W1993744164 cites W2049328184 @default.
- W1993744164 cites W2053090788 @default.
- W1993744164 cites W2053651823 @default.
- W1993744164 cites W2054799169 @default.
- W1993744164 cites W2060576432 @default.
- W1993744164 cites W2061049779 @default.
- W1993744164 cites W2065067029 @default.
- W1993744164 cites W2067209936 @default.
- W1993744164 cites W2072885406 @default.
- W1993744164 cites W2081118881 @default.
- W1993744164 cites W2081134248 @default.
- W1993744164 cites W2082401380 @default.
- W1993744164 cites W2083365286 @default.
- W1993744164 cites W2085767616 @default.
- W1993744164 cites W2086820438 @default.
- W1993744164 cites W2089030920 @default.
- W1993744164 cites W2089143561 @default.
- W1993744164 cites W2092208950 @default.
- W1993744164 cites W2092727759 @default.
- W1993744164 cites W2095850584 @default.
- W1993744164 cites W2096379616 @default.
- W1993744164 cites W2099852381 @default.
- W1993744164 cites W2101623331 @default.
- W1993744164 cites W2103826029 @default.
- W1993744164 cites W2106163623 @default.
- W1993744164 cites W2110320682 @default.
- W1993744164 cites W2113154377 @default.
- W1993744164 cites W2113552426 @default.
- W1993744164 cites W2116937628 @default.
- W1993744164 cites W2117135487 @default.
- W1993744164 cites W2118369265 @default.
- W1993744164 cites W2118494234 @default.
- W1993744164 cites W2122966070 @default.
- W1993744164 cites W2123884580 @default.
- W1993744164 cites W2124958800 @default.
- W1993744164 cites W2125240940 @default.
- W1993744164 cites W2128903528 @default.
- W1993744164 cites W2131048314 @default.
- W1993744164 cites W2131084867 @default.
- W1993744164 cites W2132436820 @default.
- W1993744164 cites W2135497701 @default.
- W1993744164 cites W2136092558 @default.
- W1993744164 cites W2138088023 @default.
- W1993744164 cites W2138548111 @default.
- W1993744164 cites W2140134767 @default.
- W1993744164 cites W2141738333 @default.
- W1993744164 cites W2145320782 @default.
- W1993744164 cites W2146152616 @default.
- W1993744164 cites W2146815278 @default.
- W1993744164 cites W2147053476 @default.
- W1993744164 cites W2154126799 @default.
- W1993744164 cites W2158288594 @default.
- W1993744164 cites W2158718341 @default.