Estimation of sulfuric acid concentration using ambient ion composition and concentration data obtained with atmospheric pressure interface time-of-flight ion mass spectrometer
Sulfuric acid (H 2 SO 4 , SA) is the key compound in atmospheric new particle formation. Therefore, it is crucial to observe its concentration with sensitive instrumentation, such as chemical ionisation (CI) inlets coupled to atmospheric pressure interface time-of-flight (APi-TOF) mass spectrometers...
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2022
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Online Access: | https://doi.org/10.5194/amt-15-1957-2022 https://doaj.org/article/f1bfb9d3677c4bb684664dcf5d95d3b8 |
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ftdoajarticles:oai:doaj.org/article:f1bfb9d3677c4bb684664dcf5d95d3b8 2023-05-15T13:40:20+02:00 Estimation of sulfuric acid concentration using ambient ion composition and concentration data obtained with atmospheric pressure interface time-of-flight ion mass spectrometer L. J. Beck S. Schobesberger M. Sipilä V.-M. Kerminen M. Kulmala 2022-03-01T00:00:00Z https://doi.org/10.5194/amt-15-1957-2022 https://doaj.org/article/f1bfb9d3677c4bb684664dcf5d95d3b8 EN eng Copernicus Publications https://amt.copernicus.org/articles/15/1957/2022/amt-15-1957-2022.pdf https://doaj.org/toc/1867-1381 https://doaj.org/toc/1867-8548 doi:10.5194/amt-15-1957-2022 1867-1381 1867-8548 https://doaj.org/article/f1bfb9d3677c4bb684664dcf5d95d3b8 Atmospheric Measurement Techniques, Vol 15, Pp 1957-1965 (2022) Environmental engineering TA170-171 Earthwork. Foundations TA715-787 article 2022 ftdoajarticles https://doi.org/10.5194/amt-15-1957-2022 2022-12-31T14:02:11Z Sulfuric acid (H 2 SO 4 , SA) is the key compound in atmospheric new particle formation. Therefore, it is crucial to observe its concentration with sensitive instrumentation, such as chemical ionisation (CI) inlets coupled to atmospheric pressure interface time-of-flight (APi-TOF) mass spectrometers. However, there are environmental conditions for which and physical reasons why chemical ionisation cannot be used, for example in certain remote places or during flight measurements with limitations regarding chemicals. Here, we propose a theoretical method to estimate the SA concentration based on ambient ion composition and concentration measurements that are achieved by APi-TOF alone. We derive a theoretical expression to estimate the SA concentration and validate it with accurate CI-APi-TOF observations. Our validation shows that the developed estimate works well during daytime in a boreal forest ( R 2 =0.85 ); however, it underestimates the SA concentration in, e.g. the Antarctic atmosphere during new particle formation events where the dominating pathway for nucleation involves sulfuric acid and a base ( R 2 =0.48 ). Article in Journal/Newspaper Antarc* Antarctic Directory of Open Access Journals: DOAJ Articles Antarctic The Antarctic Atmospheric Measurement Techniques 15 6 1957 1965 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Environmental engineering TA170-171 Earthwork. Foundations TA715-787 |
spellingShingle |
Environmental engineering TA170-171 Earthwork. Foundations TA715-787 L. J. Beck S. Schobesberger M. Sipilä V.-M. Kerminen M. Kulmala Estimation of sulfuric acid concentration using ambient ion composition and concentration data obtained with atmospheric pressure interface time-of-flight ion mass spectrometer |
topic_facet |
Environmental engineering TA170-171 Earthwork. Foundations TA715-787 |
description |
Sulfuric acid (H 2 SO 4 , SA) is the key compound in atmospheric new particle formation. Therefore, it is crucial to observe its concentration with sensitive instrumentation, such as chemical ionisation (CI) inlets coupled to atmospheric pressure interface time-of-flight (APi-TOF) mass spectrometers. However, there are environmental conditions for which and physical reasons why chemical ionisation cannot be used, for example in certain remote places or during flight measurements with limitations regarding chemicals. Here, we propose a theoretical method to estimate the SA concentration based on ambient ion composition and concentration measurements that are achieved by APi-TOF alone. We derive a theoretical expression to estimate the SA concentration and validate it with accurate CI-APi-TOF observations. Our validation shows that the developed estimate works well during daytime in a boreal forest ( R 2 =0.85 ); however, it underestimates the SA concentration in, e.g. the Antarctic atmosphere during new particle formation events where the dominating pathway for nucleation involves sulfuric acid and a base ( R 2 =0.48 ). |
format |
Article in Journal/Newspaper |
author |
L. J. Beck S. Schobesberger M. Sipilä V.-M. Kerminen M. Kulmala |
author_facet |
L. J. Beck S. Schobesberger M. Sipilä V.-M. Kerminen M. Kulmala |
author_sort |
L. J. Beck |
title |
Estimation of sulfuric acid concentration using ambient ion composition and concentration data obtained with atmospheric pressure interface time-of-flight ion mass spectrometer |
title_short |
Estimation of sulfuric acid concentration using ambient ion composition and concentration data obtained with atmospheric pressure interface time-of-flight ion mass spectrometer |
title_full |
Estimation of sulfuric acid concentration using ambient ion composition and concentration data obtained with atmospheric pressure interface time-of-flight ion mass spectrometer |
title_fullStr |
Estimation of sulfuric acid concentration using ambient ion composition and concentration data obtained with atmospheric pressure interface time-of-flight ion mass spectrometer |
title_full_unstemmed |
Estimation of sulfuric acid concentration using ambient ion composition and concentration data obtained with atmospheric pressure interface time-of-flight ion mass spectrometer |
title_sort |
estimation of sulfuric acid concentration using ambient ion composition and concentration data obtained with atmospheric pressure interface time-of-flight ion mass spectrometer |
publisher |
Copernicus Publications |
publishDate |
2022 |
url |
https://doi.org/10.5194/amt-15-1957-2022 https://doaj.org/article/f1bfb9d3677c4bb684664dcf5d95d3b8 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Atmospheric Measurement Techniques, Vol 15, Pp 1957-1965 (2022) |
op_relation |
https://amt.copernicus.org/articles/15/1957/2022/amt-15-1957-2022.pdf https://doaj.org/toc/1867-1381 https://doaj.org/toc/1867-8548 doi:10.5194/amt-15-1957-2022 1867-1381 1867-8548 https://doaj.org/article/f1bfb9d3677c4bb684664dcf5d95d3b8 |
op_doi |
https://doi.org/10.5194/amt-15-1957-2022 |
container_title |
Atmospheric Measurement Techniques |
container_volume |
15 |
container_issue |
6 |
container_start_page |
1957 |
op_container_end_page |
1965 |
_version_ |
1766132542374674432 |