Deciphering the source of primary biological aerosol particles: a pollen case study
Journal Article
·
· ACS Earth and Space Chemistry
- BATTELLE (PACIFIC NW LAB)
- University of California, Irvine
- University of Michigan
Primary biological aerosol particles (PBAPs) are microscopic solids suspended in the atmosphere emitted by biological systems and play critical roles in the atmosphere and at the atmosphere-biosphere interface, impacting human health, climate, and the ecosystem function. Understanding the sources of PBAPs is necessary to decipher the mechanistic interactions between aerosols, climate, and distinct ecosystem components. However, the detection of specific PBAPs in complex ambient aerosol samples is challenging. We performed metabolomics analyses of pollen from three pollinating tree species and ambient samples collected during the peak pollination period of each species. Random Forest and sPLS-DA machine learning methods were employed to evaluate whether metabolic signatures of ambient samples can reveal the source of the main pollen particles present in the atmosphere. Our results suggest that atmospheric eco-metabolomics techniques combined with sophisticated statistical methods can decipher the origin of abundant PBAPs from complex ambient samples. Developing complete libraries containing high-resolution metabolomic fingerprints of the major PBAPs present in the atmosphere would significantly advance future research to accurately understand the role of PBAPs in the atmosphere, ecosystems and human health.
- Research Organization:
- Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-76RL01830
- OSTI ID:
- 1808282
- Report Number(s):
- PNNL-SA-157720
- Journal Information:
- ACS Earth and Space Chemistry, Journal Name: ACS Earth and Space Chemistry Journal Issue: 4 Vol. 5
- Country of Publication:
- United States
- Language:
- English
Similar Records
Bioaerosols in the Earth system: Climate, health, and ecosystem interactions
Role of the Terrestrial Biosphere in Atmospheric Chemistry and Climate
Journal Article
·
Wed Nov 30 23:00:00 EST 2016
· Atmospheric Research
·
OSTI ID:1340783
Role of the Terrestrial Biosphere in Atmospheric Chemistry and Climate
Journal Article
·
Thu Jun 25 20:00:00 EDT 2020
· Accounts of Chemical Research
·
OSTI ID:1638454