Nga Lee Ng 1 , 2 , Steven S. Brown 3 , 4 , Alexander T. Archibald 5 , Elliot Atlas 6 , Ronald C. Cohen 7 , John N. Crowley 8 , Douglas A. Day 9 , 4 , Neil M. Donahue 10 , Juliane L. Fry 11 , Hendrik Fuchs 12 , Robert J. Griffin 13 , Marcelo I. Guzman 14 , Hartmut Herrmann 15 , Alma Hodzic 16 , Yoshiteru Iinuma 15 , José L. Jimenez 9 , 4 , Astrid Kiendler-Scharr 12 , Ben H. Lee 17 , Deborah J. Luecken 18 , Jingqiu Mao 19 , 20 , Robert McLaren 21 , Anke Mutzel 15 , Hans D. Osthoff 22 , Bin Ouyang 23 , Benedicte Picquet-Varrault 24 , Ulrich Platt 25 , Havala O. T. Pye 18 , Yinon Rudich 26 , Rebecca H. Schwantes 27 , Manabu Shiraiwa 28 , Jochen Stutz 29 , Joel A. Thornton 17 , Andreas Tilgner 15 , Brent J. Williams 30 , Rahul A. Zaveri 31
22 August 2018
Oxidation of biogenic volatile organic compounds (BVOC) by the nitrate radical (NO 3) represents one of the important interactions between anthropogenic emissions related to combustion and natural emissions from the biosphere. This interaction has been recognized for more than 3 decades, during which time a large body of research has emerged from laboratory, field, and modeling studies. NO 3-BVOC reactions influence air quality, climate and visibility through regional and global budgets for reactive nitrogen (particularly organic nitrates), ozone, and organic aerosol. Despite its long history of research and the significance of this topic in atmospheric chemistry, a number of important uncertainties remain. These include an incomplete understanding of the rates, mechanisms, and organic aerosol yields for NO 3-BVOC reactions, lack of constraints on the role of heterogeneous oxidative processes associated with the NO 3 radical, the difficulty of characterizing the spatial distributions of BVOC and NO 3 within the poorly mixed nocturnal atmosphere, and the challenge of constructing appropriate boundary layer schemes and non-photochemical mechanisms for use in state-of-the-art chemical transport and chemistry–climate models.
This review is the result of a workshop of the same title held at the Georgia Institute of Technology in June 2015. The first half of the review summarizes the current literature on NO 3-BVOC chemistry, with a particular focus on recent advances in instrumentation and models, and in organic nitrate and secondary organic aerosol (SOA) formation chemistry. Building on this current understanding, the second half of the review outlines impacts of NO 3-BVOC chemistry on air quality and climate, and suggests critical research needs to better constrain this interaction to improve the predictive capabilities of atmospheric models.