Importance of secondary organic aerosol formation of <i>α</i>-pinene, limonene, and <i>m</i>-cresol comparing day- and nighttime radical chemistry
<p>The oxidation of biogenic and anthropogenic compounds leads to the formation of secondary organic aerosol mass (SOA). The present study aims to investigate <span class="inline-formula"><i>α</i></span>-pinene, limonene, and <span class="inline-formul...
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2021-06-01
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| Series: | Atmospheric Chemistry and Physics |
| Online Access: | https://acp.copernicus.org/articles/21/8479/2021/acp-21-8479-2021.pdf |
| _version_ | 1818448526591393792 |
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| author | A. Mutzel A. Mutzel Y. Zhang Y. Zhang O. Böge M. Rodigast M. Rodigast A. Kolodziejczyk A. Kolodziejczyk X. Wang H. Herrmann |
| author_facet | A. Mutzel A. Mutzel Y. Zhang Y. Zhang O. Böge M. Rodigast M. Rodigast A. Kolodziejczyk A. Kolodziejczyk X. Wang H. Herrmann |
| author_sort | A. Mutzel |
| collection | DOAJ |
| description | <p>The oxidation of biogenic and anthropogenic compounds leads to the formation
of secondary organic aerosol mass (SOA). The present study aims to
investigate <span class="inline-formula"><i>α</i></span>-pinene, limonene, and <span class="inline-formula"><i>m</i></span>-cresol with regards to their SOA
formation potential dependent on relative humidity (RH) under night-
(NO<span class="inline-formula"><sub>3</sub></span> radicals) and daytime conditions (OH radicals) and the resulting
chemical composition. It was found that SOA formation potential of limonene
with NO<span class="inline-formula"><sub>3</sub></span> under dry conditions significantly exceeds that of the OH-radical reaction, with SOA yields of 15–30 % and 10–21 %,
respectively. Additionally, the nocturnal SOA yield was found to be very
sensitive towards RH, yielding more SOA under dry conditions. In contrast, the SOA formation potential of <span class="inline-formula"><i>α</i></span>-pinene with NO<span class="inline-formula"><sub>3</sub></span>
slightly exceeds that of the OH-radical reaction, independent from RH. On
average, <span class="inline-formula"><i>α</i></span>-pinene yielded SOA with about 6–7 % from NO<span class="inline-formula"><sub>3</sub></span>
radicals and 3–4 % from OH-radical reaction. Surprisingly, unexpectedly
high SOA yields were found for <span class="inline-formula"><i>m</i></span>-cresol oxidation with OH radicals (3–9 %), with the highest yield under elevated RH (9 %), which is most likely
attributable to a higher fraction of 3-methyl-6-nitro-catechol (MNC). While
<span class="inline-formula"><i>α</i></span>-pinene and <span class="inline-formula"><i>m</i></span>-cresol SOA was found to be mainly composed of
water-soluble compounds, 50–68 % of nocturnal SOA and 22–39 % of
daytime limonene SOA are water-insoluble. The fraction of SOA-bound peroxides
which originated from <span class="inline-formula"><i>α</i></span>-pinene varied between 2 and 80 % as a
function of RH.</p>
<p>Furthermore, SOA from <span class="inline-formula"><i>α</i></span>-pinene revealed pinonic acid as the most
important particle-phase constituent under day- and nighttime conditions
with a fraction of 1–4 %. Other compounds detected are norpinonic acid
(0.05–1.1 % mass fraction), terpenylic acid (0.1–1.1 % mass
fraction), pinic acid (0.1–1.8 % mass fraction), and
3-methyl-1,2,3-tricarboxylic acid (0.05–0.5 % mass fraction). All
marker compounds showed higher fractions under dry conditions when formed
during daytime and showed almost no RH effect when formed during night.</p> |
| first_indexed | 2024-12-14T20:20:55Z |
| format | Article |
| id | doaj.art-bf9e539f886b4956bae178127c78bbd2 |
| institution | Directory Open Access Journal |
| issn | 1680-7316 1680-7324 |
| language | English |
| last_indexed | 2024-12-14T20:20:55Z |
| publishDate | 2021-06-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Atmospheric Chemistry and Physics |
| spelling | doaj.art-bf9e539f886b4956bae178127c78bbd22022-12-21T22:48:44ZengCopernicus PublicationsAtmospheric Chemistry and Physics1680-73161680-73242021-06-01218479849810.5194/acp-21-8479-2021Importance of secondary organic aerosol formation of <i>α</i>-pinene, limonene, and <i>m</i>-cresol comparing day- and nighttime radical chemistryA. Mutzel0A. Mutzel1Y. Zhang2Y. Zhang3O. Böge4M. Rodigast5M. Rodigast6A. Kolodziejczyk7A. Kolodziejczyk8X. Wang9H. Herrmann10Leibniz Institute for Tropospheric Research (TROPOS), Atmospheric Chemistry Department (ACD), Permoserstr. 15, 04318 Leipzig, Germanynow at: Eurofins Institute Dr. Appelt Leipzig, Täubchenweg 28, 04318 LeipzigLeibniz Institute for Tropospheric Research (TROPOS), Atmospheric Chemistry Department (ACD), Permoserstr. 15, 04318 Leipzig, GermanyState Key Laboratory of Organic Geochemistry and Guangdong Key Laboratory of Environmental Protection and Resources Utilization, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, ChinaLeibniz Institute for Tropospheric Research (TROPOS), Atmospheric Chemistry Department (ACD), Permoserstr. 15, 04318 Leipzig, GermanyLeibniz Institute for Tropospheric Research (TROPOS), Atmospheric Chemistry Department (ACD), Permoserstr. 15, 04318 Leipzig, Germanynow at: Indulor Chemie GmbH & Co. KG Produktionsgesellschaft Bitterfeld, 06749 Bitterfeld-Wolfen, GermanyLeibniz Institute for Tropospheric Research (TROPOS), Atmospheric Chemistry Department (ACD), Permoserstr. 15, 04318 Leipzig, GermanyInstitute of Physical Chemistry of the Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, PolandState Key Laboratory of Organic Geochemistry and Guangdong Key Laboratory of Environmental Protection and Resources Utilization, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, ChinaLeibniz Institute for Tropospheric Research (TROPOS), Atmospheric Chemistry Department (ACD), Permoserstr. 15, 04318 Leipzig, Germany<p>The oxidation of biogenic and anthropogenic compounds leads to the formation of secondary organic aerosol mass (SOA). The present study aims to investigate <span class="inline-formula"><i>α</i></span>-pinene, limonene, and <span class="inline-formula"><i>m</i></span>-cresol with regards to their SOA formation potential dependent on relative humidity (RH) under night- (NO<span class="inline-formula"><sub>3</sub></span> radicals) and daytime conditions (OH radicals) and the resulting chemical composition. It was found that SOA formation potential of limonene with NO<span class="inline-formula"><sub>3</sub></span> under dry conditions significantly exceeds that of the OH-radical reaction, with SOA yields of 15–30 % and 10–21 %, respectively. Additionally, the nocturnal SOA yield was found to be very sensitive towards RH, yielding more SOA under dry conditions. In contrast, the SOA formation potential of <span class="inline-formula"><i>α</i></span>-pinene with NO<span class="inline-formula"><sub>3</sub></span> slightly exceeds that of the OH-radical reaction, independent from RH. On average, <span class="inline-formula"><i>α</i></span>-pinene yielded SOA with about 6–7 % from NO<span class="inline-formula"><sub>3</sub></span> radicals and 3–4 % from OH-radical reaction. Surprisingly, unexpectedly high SOA yields were found for <span class="inline-formula"><i>m</i></span>-cresol oxidation with OH radicals (3–9 %), with the highest yield under elevated RH (9 %), which is most likely attributable to a higher fraction of 3-methyl-6-nitro-catechol (MNC). While <span class="inline-formula"><i>α</i></span>-pinene and <span class="inline-formula"><i>m</i></span>-cresol SOA was found to be mainly composed of water-soluble compounds, 50–68 % of nocturnal SOA and 22–39 % of daytime limonene SOA are water-insoluble. The fraction of SOA-bound peroxides which originated from <span class="inline-formula"><i>α</i></span>-pinene varied between 2 and 80 % as a function of RH.</p> <p>Furthermore, SOA from <span class="inline-formula"><i>α</i></span>-pinene revealed pinonic acid as the most important particle-phase constituent under day- and nighttime conditions with a fraction of 1–4 %. Other compounds detected are norpinonic acid (0.05–1.1 % mass fraction), terpenylic acid (0.1–1.1 % mass fraction), pinic acid (0.1–1.8 % mass fraction), and 3-methyl-1,2,3-tricarboxylic acid (0.05–0.5 % mass fraction). All marker compounds showed higher fractions under dry conditions when formed during daytime and showed almost no RH effect when formed during night.</p>https://acp.copernicus.org/articles/21/8479/2021/acp-21-8479-2021.pdf |
| spellingShingle | A. Mutzel A. Mutzel Y. Zhang Y. Zhang O. Böge M. Rodigast M. Rodigast A. Kolodziejczyk A. Kolodziejczyk X. Wang H. Herrmann Importance of secondary organic aerosol formation of <i>α</i>-pinene, limonene, and <i>m</i>-cresol comparing day- and nighttime radical chemistry Atmospheric Chemistry and Physics |
| title | Importance of secondary organic aerosol formation of <i>α</i>-pinene, limonene, and <i>m</i>-cresol comparing day- and nighttime radical chemistry |
| title_full | Importance of secondary organic aerosol formation of <i>α</i>-pinene, limonene, and <i>m</i>-cresol comparing day- and nighttime radical chemistry |
| title_fullStr | Importance of secondary organic aerosol formation of <i>α</i>-pinene, limonene, and <i>m</i>-cresol comparing day- and nighttime radical chemistry |
| title_full_unstemmed | Importance of secondary organic aerosol formation of <i>α</i>-pinene, limonene, and <i>m</i>-cresol comparing day- and nighttime radical chemistry |
| title_short | Importance of secondary organic aerosol formation of <i>α</i>-pinene, limonene, and <i>m</i>-cresol comparing day- and nighttime radical chemistry |
| title_sort | importance of secondary organic aerosol formation of i α i pinene limonene and i m i cresol comparing day and nighttime radical chemistry |
| url | https://acp.copernicus.org/articles/21/8479/2021/acp-21-8479-2021.pdf |
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