Data from: The first high-resolution aerosol pH change since industrial revolution constructed by the nitrogen isotopes of ice core ammonium
Creators
- 1. Central South University of Forestry and Technology
- 2. Brown University
- 3. Yunnan University
- 4. Chinese Academy of Sciences
- 5. Qufu Normal University
- 6. University of Science and Technology of China
- 7. Tianjin University
Description
Aerosol acidity has broad significance in the atmosphere and ecosystems; however, a reliable way to quantify its changes over long time is lacking. Here, we propose a new approach calculating aerosol pH based on the nitrogen stable isotope composition (δ15N) of aerosol ammonium (NH4+) and for the first time reconstruct historical trajectory of aerosol pH over the last two centuries via δ15N of NH4+ achieved in a Tibetan ice core. We observed a significant decrease in δ15N of ice core NH4+ by 13‰ from the preindustrial to modern era, corresponding to a decreased in aerosol pH by 0.75 units. The decline in pH demonstrates a dominant role of anthropogenic emissions in acid gases over alkaline gases since Industrial Revolution. Our study also suggests that spatiotemporal patterns of aerosol acidity could be widely revealed by future nitrogen stable isotope of aerosol or ice core ammonium measurement, which in turn will promote the understanding in aerosol chemistry in the context of global environmental changes.y in the context of global environmental changes.
Notes
Funding provided by: National Key Research and Development Program of China
Crossref Funder Registry ID: http://dx.doi.org/10.13039/501100012166
Award Number: 2017YFC0212700
Funding provided by: National Key Research and Development Program of China
Crossref Funder Registry ID: http://dx.doi.org/10.13039/501100012166
Award Number: 2016YFA0600802
Funding provided by: National Science Foundation
Crossref Funder Registry ID: http://dx.doi.org/10.13039/100000001
Award Number: AGS-1351932
Funding provided by: National Science Foundation
Crossref Funder Registry ID: http://dx.doi.org/10.13039/100000001
Award Number: AGS-1624618
Funding provided by: Chinese Academy of Sciences*
Crossref Funder Registry ID:
Award Number: QYZDB-SSWDQC002
Funding provided by: National Natural Science Foundation of China
Crossref Funder Registry ID: http://dx.doi.org/10.13039/501100001809
Award Number: 41530748
Funding provided by: National Natural Science Foundation of China
Crossref Funder Registry ID: http://dx.doi.org/10.13039/501100001809
Award Number: 41773094
Funding provided by: Hunan Natural Science Foundation-Youth Science*
Crossref Funder Registry ID:
Award Number: 2021JJ41071
Funding provided by: China Scholarship Council
Crossref Funder Registry ID: http://dx.doi.org/10.13039/501100004543
Award Number: 201704910659
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