Zobrazeno 1 - 10
of 137
pro vyhledávání: '"G, EGER"'
Autor:
D. Dienhart, B. Brendel, J. N. Crowley, P. G. Eger, H. Harder, M. Martinez, A. Pozzer, R. Rohloff, J. Schuladen, S. Tauer, D. Walter, J. Lelieveld, H. Fischer
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 119-142 (2023)
Formaldehyde (HCHO), hydrogen peroxide (H2O2) and organic hydroperoxides (ROOH) play a key role in atmospheric oxidation processes. They act as sources and sinks for HOx radicals (OH + HO2), with OH as the primary oxidant that governs the atmospheric
Externí odkaz:
https://doaj.org/article/c34cdcd00794491ba953b8d6cbef07c5
Autor:
D. Dienhart, J. N. Crowley, E. Bourtsoukidis, A. Edtbauer, P. G. Eger, L. Ernle, H. Harder, B. Hottmann, M. Martinez, U. Parchatka, J.-D. Paris, E. Y. Pfannerstill, R. Rohloff, J. Schuladen, C. Stönner, I. Tadic, S. Tauer, N. Wang, J. Williams, J. Lelieveld, H. Fischer
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 17373-17388 (2021)
Formaldehyde (HCHO) is the most abundant aldehyde in the troposphere. While its background mixing ratio is mostly determined by the oxidation of methane, in many environments, especially in the boundary layer, HCHO can have a large variety of precurs
Externí odkaz:
https://doaj.org/article/6f0bd171a3334f9cb6d8cf85efa34ee8
Autor:
P. G. Eger, L. Vereecken, R. Sander, J. Schuladen, N. Sobanski, H. Fischer, E. Karu, J. Williams, V. Vakkari, T. Petäjä, J. Lelieveld, A. Pozzer, J. N. Crowley
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 14333-14349 (2021)
Based on the first measurements of gas-phase pyruvic acid (CH3C(O)C(O)OH) in the boreal forest, we derive effective emission rates of pyruvic acid and compare them with monoterpene emission rates over the diel cycle. Using a data-constrained box mode
Externí odkaz:
https://doaj.org/article/4b4582c6dbc248b3a77f2ac0a4c7fb89
Publikováno v:
European Psychiatry, Vol 65, Pp S145-S145 (2022)
Introduction Mood disorders interrupt well-being and participation in everyday activities through, among others, a mechanism of cognitive impairments. Ample evidence was found for cognitive remediation (CR) effectiveness in various mental health cond
Externí odkaz:
https://doaj.org/article/847b4d45c0fc4ab1be6fe5b2a155fb3b
Autor:
S. Celik, F. Drewnick, F. Fachinger, J. Brooks, E. Darbyshire, H. Coe, J.-D. Paris, P. G. Eger, J. Schuladen, I. Tadic, N. Friedrich, D. Dienhart, B. Hottmann, H. Fischer, J. N. Crowley, H. Harder, S. Borrmann
Publikováno v:
Atmospheric Chemistry and Physics, Vol 20, Pp 4713-4734 (2020)
A total of 252 emission plumes of ships operating in the Mediterranean Sea and around the Arabian Peninsula were investigated using a comprehensive dataset of gas- and submicron-particle-phase properties measured during the 2-month shipborne AQABA (A
Externí odkaz:
https://doaj.org/article/aaf2de03cc1d4ec4bd134036481e0922
Autor:
P. G. Eger, J. Schuladen, N. Sobanski, H. Fischer, E. Karu, J. Williams, M. Riva, Q. Zha, M. Ehn, L. L. J. Quéléver, S. Schallhart, J. Lelieveld, J. N. Crowley
Publikováno v:
Atmospheric Chemistry and Physics, Vol 20, Pp 3697-3711 (2020)
Pyruvic acid (CH3C(O)C(O)OH, 2-oxopropanoic acid) is an organic acid of biogenic origin that plays a crucial role in plant metabolism, is present in tropospheric air in both gas-phase and aerosol-phase, and is implicated in the formation of secondary
Externí odkaz:
https://doaj.org/article/bf3c3ceb39e446a2b69cd4738fae5d33
Autor:
P. G. Eger, N. Friedrich, J. Schuladen, J. Shenolikar, H. Fischer, I. Tadic, H. Harder, M. Martinez, R. Rohloff, S. Tauer, F. Drewnick, F. Fachinger, J. Brooks, E. Darbyshire, J. Sciare, M. Pikridas, J. Lelieveld, J. N. Crowley
Publikováno v:
Atmospheric Chemistry and Physics, Vol 19, Pp 12121-12140 (2019)
Shipborne measurements of nitryl chloride (ClNO2), hydrogen chloride (HCl) and sulfur dioxide (SO2) were made during the AQABA (Air Quality and climate change in the Arabian BAsin) ship campaign in summer 2017. The dataset includes measurements over
Externí odkaz:
https://doaj.org/article/eba11282e9784ecbab51c1b2b23afe64
Autor:
E. Y. Pfannerstill, N. Wang, A. Edtbauer, E. Bourtsoukidis, J. N. Crowley, D. Dienhart, P. G. Eger, L. Ernle, H. Fischer, B. Hottmann, J.-D. Paris, C. Stönner, I. Tadic, D. Walter, J. Lelieveld, J. Williams
Publikováno v:
Atmospheric Chemistry and Physics, Vol 19, Pp 11501-11523 (2019)
The Arabian Peninsula is characterized by high and increasing levels of photochemical air pollution. Strong solar irradiation, high temperatures and large anthropogenic emissions of reactive trace gases result in intense photochemical activity, espec
Externí odkaz:
https://doaj.org/article/6d0e8383927947b9bc14a23d62e38e0c
Publikováno v:
Atmospheric Measurement Techniques, Vol 12, Pp 4149-4169 (2019)
Over the last few decades, differential optical absorption spectroscopy (DOAS) has been used as a common technique to simultaneously measure abundances of a variety of atmospheric trace gases. Exploiting the unique differential absorption cross secti
Externí odkaz:
https://doaj.org/article/84d71cf26e1049bdb55d97b65b2e112f
Publikováno v:
Atmospheric Measurement Techniques, Vol 12, Pp 1935-1954 (2019)
We present a chemical ionization quadrupole mass spectrometer (CI-QMS) with a radio-frequency (RF) discharge ion source through N2∕CH3I as a source of primary ions. In addition to the expected detection of PAN, peracetic acid (PAA) and ClNO2 throug
Externí odkaz:
https://doaj.org/article/d20fefadda9545ec9887e19de9d13b85