Photodissociation of particulate nitrate as a source of daytime tropospheric Cl2

Autor: Xiang Peng, Tao Wang, Weihao Wang, A. R. Ravishankara, Christian George, Men Xia, Min Cai, Qinyi Li, Christian Mark Salvador, Chiho Lau, Xiaopu Lyu, Chun Nan Poon, Abdelwahid Mellouki, Yujing Mu, Mattias Hallquist, Alfonso Saiz-Lopez, Hai Guo, Hartmut Herrmann, Chuan Yu, Jianing Dai, Yanan Wang, Xinke Wang, Alfred Yu, Kenneth Leung, Shuncheng Lee, Jianmin Chen

Publikováno v: Nature Communications, Vol 13, Iss 1, Pp 1-10 (2022)

This study unravels an important daytime Cl2 source in the extra-polar atmosphere and shows that photolysis of particle nitrate at high acidity produced unprecedented levels of Cl2, boosting the oxidative power and air pollutants like O3.

Externí odkaz: https://doaj.org/article/a6a5ce4c2e424b758cab21136be93787

Emissions and Secondary Formation of Air Pollutants from Modern Heavy-Duty Trucks in Real-World Traffic—Chemical Characteristics Using On-Line Mass Spectrometry

Autor: Qianyun Liu, Michael Priestley, Chak K. Chan, Åsa M. Hallquist, Liyuan Zhou, Mattias Hallquist, Christian Mark Salvador

Publikováno v: Environmental Science & Technology

Complying with stricter emissions standards, a new generation of heavy-duty trucks (HDTs) has gradually increased its market share and now accounts for a large percentage of on-road mileage. The potential to improve air quality depends on an actual r

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cc2dd61ea362e774491af2a2832cf268
https://doi.org/10.1021/acs.est.1c00412

A Four Carbon Organonitrate as a Significant Product of Secondary Isoprene Chemistry

Autor: Epameinondas Tsiligiannis, Rongrong Wu, Ben H. Lee, Christian Mark Salvador, Michael Priestley, Philip T. M. Carlsson, Sungah Kang, Anna Novelli, Luc Vereecken, Hendrik Fuchs, Alfred W. Mayhew, Jacqueline F. Hamilton, Peter M. Edwards, Juliane L. Fry, Bellamy Brownwood, Steven S. Brown, Robert J. Wild, Thomas J. Bannan, Hugh Coe, James Allan, Jason D. Surratt, Asan Bacak, Paul Artaxo, Carl Percival, Song Guo, Min Hu, Tao Wang, Thomas F. Mentel, Joel A. Thornton, Mattias Hallquist

Publikováno v: Geophysical Research Letters 49 (2022) 11
Geophysical Research Letters
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Geophysical research letters 49(11), e2021GL097366 (2022). doi:10.1029/2021GL097366
Geophysical Research Letters, 49(11)
Tsiligiannis, E, Wu, R, Lee, B H, Salvador, C M, Priestley, M, Carlsson, P T M, Kang, S, Novelli, A, Vereecken, L, Fuchs, H, Mayhew, A W, Hamilton, J F, Edwards, P M, Fry, J L, Brownwood, B, Brown, S S, Wild, R J, Bannan, T J, Coe, H, Allan, J, Surratt, J D, Bacak, A, Artaxo, P, Percival, C, Guo, S, Hu, M, Wang, T, Mentel, T F, Thornton, J A & Hallquist, M 2022, ' A Four Carbon Organonitrate as a Significant Product of Secondary Isoprene Chemistry ', Geophysical Research Letters, vol. 49, no. 11, e2021GL097366, pp. e2021GL097366 . https://doi.org/10.1029/2021GL097366

Oxidation of isoprene by nitrate radicals (NO3) or by hydroxyl radicals (OH) under high NOx conditions forms a substantial amount of organonitrates (ONs). ONs impact NOx concentrations and consequently ozone formation while also contributing to secon

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e62013e7d59eb9a33faf6442ba4d92a7
https://research.wur.nl/en/publications/a-four-carbon-organonitrate-as-a-significant-product-of-secondary

Photodissociation of particulate nitrate as a source of daytime tropospheric Cl

Autor: Xiang, Peng, Tao, Wang, Weihao, Wang, A R, Ravishankara, Christian, George, Men, Xia, Min, Cai, Qinyi, Li, Christian Mark, Salvador, Chiho, Lau, Xiaopu, Lyu, Chun Nan, Poon, Abdelwahid, Mellouki, Yujing, Mu, Mattias, Hallquist, Alfonso, Saiz-Lopez, Hai, Guo, Hartmut, Herrmann, Chuan, Yu, Jianing, Dai, Yanan, Wang, Xinke, Wang, Alfred, Yu, Kenneth, Leung, Shuncheng, Lee, Jianmin, Chen

Publikováno v: Nature communications. 13(1)

Chlorine atoms (Cl) are highly reactive and can strongly influence the abundances of climate and air quality-relevant trace gases. Despite extensive research on molecular chlorine (Cl

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::d0ff4d7e348a658b0833e0c858ce3b83
https://pubmed.ncbi.nlm.nih.gov/35177585

A transition of atmospheric emissions of particles and gases from on-road heavy-duty trucks

Autor: Berto Paul Yok Long Lee, Martin Jerksjö, Qianyun Liu, Ingvar Wängberg, Samuel Mwaniki Gaita, Håkan Salberg, Åsa M. Hallquist, Johan Mellqvist, Chak K. Chan, Mattias Hallquist, Christian Mark Salvador, Liyuan Zhou, Åke Sjödin

Publikováno v: Atmospheric Chemistry and Physics, Vol 20, Pp 1701-1722 (2020)

The transition, in extent and characteristics, of atmospheric emissions caused by the modernization of the heavy-duty on-road fleet was studied utilizing roadside measurements. Emissions of particle number (PN), particle mass (PM), black carbon (BC),

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0d211e32116374dadfae5428c0399841
https://www.atmos-chem-phys.net/20/1701/2020/