Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Y. J. Tham"'
Publikováno v:
Atmospheric Chemistry and Physics, Vol 24, Pp 977-992 (2024)
The nitrate radical (NO3) is a critical nocturnal atmospheric oxidant in the troposphere, which widely affects the fate of air pollutants and regulates air quality. Many previous works have reported the chemistry of NO3 in inland regions of China, wh
Externí odkaz:
https://doaj.org/article/99083e3cc68e420ba084df4c411d2491
Autor:
R. C. Thakur, L. Dada, L. J. Beck, L. L. J. Quéléver, T. Chan, M. Marbouti, X.-C. He, C. Xavier, J. Sulo, J. Lampilahti, M. Lampimäki, Y. J. Tham, N. Sarnela, K. Lehtipalo, A. Norkko, M. Kulmala, M. Sipilä, T. Jokinen
Publikováno v:
Atmospheric Chemistry and Physics, Vol 22, Pp 6365-6391 (2022)
Several studies have investigated new particle formation (NPF) events from various sites ranging from pristine locations, including forest sites, to urban areas. However, there is still a dearth of studies investigating NPF processes and subsequent a
Externí odkaz:
https://doaj.org/article/c4516680b0864ef487da9789f29fcded
Autor:
L. Caudillo, B. Rörup, M. Heinritzi, G. Marie, M. Simon, A. C. Wagner, T. Müller, M. Granzin, A. Amorim, F. Ataei, R. Baalbaki, B. Bertozzi, Z. Brasseur, R. Chiu, B. Chu, L. Dada, J. Duplissy, H. Finkenzeller, L. Gonzalez Carracedo, X.-C. He, V. Hofbauer, W. Kong, H. Lamkaddam, C. P. Lee, B. Lopez, N. G. A. Mahfouz, V. Makhmutov, H. E. Manninen, R. Marten, D. Massabò, R. L. Mauldin, B. Mentler, U. Molteni, A. Onnela, J. Pfeifer, M. Philippov, A. A. Piedehierro, M. Schervish, W. Scholz, B. Schulze, J. Shen, D. Stolzenburg, Y. Stozhkov, M. Surdu, C. Tauber, Y. J. Tham, P. Tian, A. Tomé, S. Vogt, M. Wang, D. S. Wang, S. K. Weber, A. Welti, W. Yonghong, W. Yusheng, M. Zauner-Wieczorek, U. Baltensperger, I. El Haddad, R. C. Flagan, A. Hansel, K. Höhler, J. Kirkby, M. Kulmala, K. Lehtipalo, O. Möhler, H. Saathoff, R. Volkamer, P. M. Winkler, N. M. Donahue, A. Kürten, J. Curtius
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 17099-17114 (2021)
Biogenic organic precursors play an important role in atmospheric new particle formation (NPF). One of the major precursor species is α-pinene, which upon oxidation can form a suite of products covering a wide range of volatilities. Highly oxygenate
Externí odkaz:
https://doaj.org/article/49e181487bc54896a3f154f556547c1d
Autor:
M. Xia, X. Peng, W. Wang, C. Yu, Z. Wang, Y. J. Tham, J. Chen, H. Chen, Y. Mu, C. Zhang, P. Liu, L. Xue, X. Wang, J. Gao, H. Li, T. Wang
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 15985-16000 (2021)
Nitryl chloride (ClNO2) is an important chlorine reservoir in the atmosphere that affects the oxidation of volatile organic compounds (VOCs) and the production of ROx radicals and ozone (O3). This study presents measurements of ClNO2 and related comp
Externí odkaz:
https://doaj.org/article/f1f4e5b059ee4d47847e25379fdd19ce
Autor:
M. Xiao, C. R. Hoyle, L. Dada, D. Stolzenburg, A. Kürten, M. Wang, H. Lamkaddam, O. Garmash, B. Mentler, U. Molteni, A. Baccarini, M. Simon, X.-C. He, K. Lehtipalo, L. R. Ahonen, R. Baalbaki, P. S. Bauer, L. Beck, D. Bell, F. Bianchi, S. Brilke, D. Chen, R. Chiu, A. Dias, J. Duplissy, H. Finkenzeller, H. Gordon, V. Hofbauer, C. Kim, T. K. Koenig, J. Lampilahti, C. P. Lee, Z. Li, H. Mai, V. Makhmutov, H. E. Manninen, R. Marten, S. Mathot, R. L. Mauldin, W. Nie, A. Onnela, E. Partoll, T. Petäjä, J. Pfeifer, V. Pospisilova, L. L. J. Quéléver, M. Rissanen, S. Schobesberger, S. Schuchmann, Y. Stozhkov, C. Tauber, Y. J. Tham, A. Tomé, M. Vazquez-Pufleau, A. C. Wagner, R. Wagner, Y. Wang, L. Weitz, D. Wimmer, Y. Wu, C. Yan, P. Ye, Q. Ye, Q. Zha, X. Zhou, A. Amorim, K. Carslaw, J. Curtius, A. Hansel, R. Volkamer, P. M. Winkler, R. C. Flagan, M. Kulmala, D. R. Worsnop, J. Kirkby, N. M. Donahue, U. Baltensperger, I. El Haddad, J. Dommen
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 14275-14291 (2021)
New particle formation (NPF) is a significant source of atmospheric particles, affecting climate and air quality. Understanding the mechanisms involved in urban aerosols is important to develop effective mitigation strategies. However, NPF rates repo
Externí odkaz:
https://doaj.org/article/6aac995a628d449aa6612bfaf88c7f06
Autor:
M. Okuljar, H. Kuuluvainen, J. Kontkanen, O. Garmash, M. Olin, J. V. Niemi, H. Timonen, J. Kangasluoma, Y. J. Tham, R. Baalbaki, M. Sipilä, L. Salo, H. Lintusaari, H. Portin, K. Teinilä, M. Aurela, M. Dal Maso, T. Rönkkö, T. Petäjä, P. Paasonen
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 9931-9953 (2021)
Most of the anthropogenic air pollution sources are located in urban environments. The contribution of these sources to the population of atmospheric particles in the urban environment is poorly known. In this study, we investigated the aerosol parti
Externí odkaz:
https://doaj.org/article/9fd6b5937c264b78986fc5e43d43ed08
Autor:
X. Fan, J. Cai, C. Yan, J. Zhao, Y. Guo, C. Li, K. R. Dällenbach, F. Zheng, Z. Lin, B. Chu, Y. Wang, L. Dada, Q. Zha, W. Du, J. Kontkanen, T. Kurtén, S. Iyer, J. T. Kujansuu, T. Petäjä, D. R. Worsnop, V.-M. Kerminen, Y. Liu, F. Bianchi, Y. J. Tham, L. Yao, M. Kulmala
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 11437-11452 (2021)
Gaseous hydrochloric (HCl) and hydrobromic acid (HBr) are vital halogen species that play essential roles in tropospheric physicochemical processes. Yet, the majority of the current studies on these halogen species were conducted in marine or coastal
Externí odkaz:
https://doaj.org/article/fa106b2ca76b40929146a729ff765cb4
Measurement of iodine species and sulfuric acid using bromide chemical ionization mass spectrometers
Autor:
M. Wang, X.-C. He, H. Finkenzeller, S. Iyer, D. Chen, J. Shen, M. Simon, V. Hofbauer, J. Kirkby, J. Curtius, N. Maier, T. Kurtén, D. R. Worsnop, M. Kulmala, M. Rissanen, R. Volkamer, Y. J. Tham, N. M. Donahue, M. Sipilä
Publikováno v:
Atmospheric Measurement Techniques, Vol 14, Pp 4187-4202 (2021)
Iodine species are important in the marine atmosphere for oxidation and new-particle formation. Understanding iodine chemistry and iodine new-particle formation requires high time resolution, high sensitivity, and simultaneous measurements of many io
Externí odkaz:
https://doaj.org/article/fe3829d503ae4a989b41d7add6953fa4
Autor:
W. Huang, H. Li, N. Sarnela, L. Heikkinen, Y. J. Tham, J. Mikkilä, S. J. Thomas, N. M. Donahue, M. Kulmala, F. Bianchi
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 8961-8977 (2021)
The molecular composition and volatility of gaseous organic compounds were investigated during April–July 2019 at the Station for Measuring Ecosystem – Atmosphere Relations (SMEAR) II situated in a boreal forest in Hyytiälä, southern Finland. I
Externí odkaz:
https://doaj.org/article/38071555ba2e4644b507e96d3360e90f
Autor:
C. Rose, M. P. Rissanen, S. Iyer, J. Duplissy, C. Yan, J. B. Nowak, A. Colomb, R. Dupuy, X.-C. He, J. Lampilahti, Y. J. Tham, D. Wimmer, J.-M. Metzger, P. Tulet, J. Brioude, C. Planche, M. Kulmala, K. Sellegri
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 4541-4560 (2021)
Sulfuric acid (H2SO4) is commonly accepted as a key precursor for atmospheric new particle formation (NPF). However, direct measurements of [H2SO4] remain challenging, thereby preventing the determination of this important quantity, and, consequently
Externí odkaz:
https://doaj.org/article/21df3d00c1164662aa36ffa2aec9db6e