2021
DOI: 10.5194/acp-21-7473-2021
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Abstract: Abstract. We present shipborne measurements of NOx (≡ NO + NO2) and NOy (≡ NOx+ gas- and particle-phase organic and inorganic oxides of nitrogen) in summer 2017 as part of the expedition “Air Quality and climate change in the Arabian BAsin” (AQABA). The NOx and NOz (≡ NOy-NOx) measurements, made with a thermal dissociation cavity ring-down spectrometer (TD-CRDS), were used to examine the chemical mechanisms involved in the processing of primary NOx emissions and their influence on the NOy budget in chemically … Show more

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Cited by 14 publications
(20 citation statements)
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“…Similar to the NPAHs and RPAHs, most other air pollutants (e.g. non-methane hydrocarbons, carbonyl compounds, NO x , NO z , O 3 , SO 2 ) measured during the AQABA campaign showed the highest concentration in the Arabian Gulf (Bourtsoukidis et al, 2019;Eger et al, 2019;Pfannerstill et al, 2019;Tadic et al, 2020;Wang et al, 2020;Friedrich et al, 2021).…”
Section: Occurrence Of Pahs and Pah Derivativesmentioning
confidence: 62%
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“…Similar to the NPAHs and RPAHs, most other air pollutants (e.g. non-methane hydrocarbons, carbonyl compounds, NO x , NO z , O 3 , SO 2 ) measured during the AQABA campaign showed the highest concentration in the Arabian Gulf (Bourtsoukidis et al, 2019;Eger et al, 2019;Pfannerstill et al, 2019;Tadic et al, 2020;Wang et al, 2020;Friedrich et al, 2021).…”
Section: Occurrence Of Pahs and Pah Derivativesmentioning
confidence: 62%
“…BAP, which is predominantly in the particulate phase, is mainly degraded by heterogeneous reaction with ozone (Shiraiwa et al, 2009), while 2-NFLT is mainly formed by homogeneous reaction of FLT with OH or NO 3 (Atkinson and Arey, 1994;Reisen and Arey, 2005) and subsequent reaction with NO 2 . Ozone concentrations varied between 20 ppbv (in the Arabian Sea) and 150 ppbv (in the Arabian Gulf), while the variation of NO x was higher (from 50 pptv in Arabian Sea to more than 10 ppbv in the northern Red Sea and the Arabian Gulf) (Tadic et al, 2020;Friedrich et al, 2021).…”
Section: Source Attribution By Npahs and Opahsmentioning
confidence: 96%
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