title: Secondary organic aerosol formation and organic nitrate yield from NO3 oxidation of biogenic hydrocarbons.
abstract: The secondary organic aerosol (SOA) mass yields from NO3 oxidation of a series of biogenic volatile organic compounds (BVOCs), consisting of five monoterpenes and one sesquiterpene (α-pinene, β-pinene, Δ-3-carene, limonene, sabinene, and β-caryophyllene), were investigated in a series of continuous flow experiments in a 10 m(3) indoor Teflon chamber. By making in situ measurements of the nitrate radical and employing a kinetics box model, we generate time-dependent yield curves as a function of reacted BVOC. SOA yields varied dramatically among the different BVOCs, from zero for α-pinene to 38-65% for Δ-3-carene and 86% for β-caryophyllene at mass loading of 10 μg m(-3), suggesting that model mechanisms that treat all NO3 + monoterpene reactions equally will lead to errors in predicted SOA depending on each location's mix of BVOC emissions. In most cases, organonitrate is a dominant component of the aerosol produced, but in the case of α-pinene, little organonitrate and no aerosol is formed.
authors.affiliation: Chemistry Department, Reed College , Portland, Oregon 97202-8199, United States.
authors.forename: Juliane L
authors.initials: JL
authors.lastname: Fry
authors.forename: Danielle C
authors.initials: DC
authors.lastname: Draper
authors.forename: Kelley C
authors.initials: KC
authors.lastname: Barsanti
authors.forename: James N
authors.initials: JN
authors.lastname: Smith
authors.forename: John
authors.initials: J
authors.lastname: Ortega
authors.forename: Paul M
authors.initials: PM
authors.lastname: Winkler
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Lawler
authors.forename: Steven S
authors.initials: SS
authors.lastname: Brown
authors.forename: Peter M
authors.initials: PM
authors.lastname: Edwards
authors.forename: Ronald C
authors.initials: RC
authors.lastname: Cohen
authors.forename: Lance
authors.initials: L
authors.lastname: Lee
mesh_terms: D000336:Aerosols / Q000737:chemistry*; D000393:Air Pollutants / Q000032:analysis / Q000737:chemistry; D000081008:Bicyclic Monoterpenes; D001643:Bridged Bicyclo Compounds / Q000737:chemistry; D053138:Cyclohexenes / Q000737:chemistry; D007700:Kinetics; D000077222:Limonene; D039821:Monoterpenes / Q000737:chemistry; D009566:Nitrates / Q000737:chemistry*; D000081223:Polycyclic Sesquiterpenes; D012717:Sesquiterpenes / Q000737:chemistry; D013729:Terpenes / Q000737:chemistry; D055549:Volatile Organic Compounds / Q000737:chemistry*
chemical_list: D000336:Aerosols; D000393:Air Pollutants; D000081008:Bicyclic Monoterpenes; D001643:Bridged Bicyclo Compounds; D053138:Cyclohexenes; D039821:Monoterpenes; D009566:Nitrates; D000081223:Polycyclic Sesquiterpenes; D012717:Sesquiterpenes; D013729:Terpenes; D055549:Volatile Organic Compounds; C010789:beta-pinene; C035127:sabinene; D000077222:Limonene; C024714:caryophyllene; C030218:3-carene; C005451:alpha-pinene