Relative Influence of Trans-Pacific and Regional Atmospheric Transport of PAHs in the Pacific Northwest, US Public Deposited

http://ir.library.oregonstate.edu/concern/articles/8c97ks25g

Descriptions

Attribute NameValues
Creator
Abstract or Summary
  • The relative influences of trans-Pacific and regional atmospheric transport on measured concentrations of polycyclic aromatic hydrocarbons (PAHs), PAH derivatives [Nitro- (NPAH) and Oxy-(OPAH)], organic carbon (OC), and Particulate Matter (PM) less than 2.5 μm in diameter (PM₂.₅) were investigated in the Pacific Northwest, USA in 2010-2011. Ambient high volume PM₂.₅ air samples were collected at two sites in the Pacific Northwest: 1.) Mount Bachelor Observatory (MBO) in the Oregon Cascade Range (2763 m above sea level (asl)) and 2.) Confederated Tribes of the Umatilla Indian Reservation (CTUIR) in the Columbia River Gorge (CRG) (954 m asl). At MBO, the 1,8-dinitropyrene concentration was significantly positively correlated with the time a sampled air mass spent over Asia, suggesting that this NPAH may be a good marker for trans-Pacific atmospheric transport. At CTUIR, NOx, CO₂, and SO₂ emissions from a 585 MW coal fired power plant, in Boardman OR, were found to be significantly positively correlated with PAH, OPAH, NPAH, OC, and PM₂.₅ concentrations. By comparing the Boardman Plant operational time frames when the plant was operating to when it was shut down, the plant was found to contribute a large percentage of the measured PAH (67%), NPAH (91%), OPAH (54%), PM₂.₅ (39%) and OC (38%) concentrations at CTUIR and the CRG prior to Spring 2011 and likely masked trans-Pacific atmospheric transport events to the CRG. Upgrades installed to the Boardman Plant in the spring of 2011 dramatically reduced the plant’s contribution to PAH and OPAH concentrations (by ~72% and ~40%, respectively) at CTUIR and the CRG but not NPAH, PM₂.₅ or OC concentrations.
Resource Type
DOI
Date Available
Date Issued
Citation
  • Lafontaine, S., Schrlau, J., Butler, J., Jia, Y., Harper, B., Harris, S., ... & Simonich, S. L. M. (2015). Relative Influence of Trans-Pacific and Regional Atmospheric Transport of PAHs in the Pacific Northwest, US. Environmental Science & Technology, 49(23), 13807-13816. doi:10.1021/acs.est.5b00800
Series
Rights Statement
Related Items
Funding Statement (additional comments about funding)
Publisher
Peer Reviewed
Language
Replaces
Additional Information
  • description.provenance : Made available in DSpace on 2016-01-08T17:07:21Z (GMT). No. of bitstreams: 2LafontaineScottChemistryRelativeInfluenceTransPacific.pdf: 6576248 bytes, checksum: 8b3894ef6177d7dde242ea808d29636c (MD5)LafontaineScottChemistryRelativeInfluenceTransPacificSupportingInfo).pdf: 4474903 bytes, checksum: 3e4a81863834bf587392945c9a224239 (MD5) Previous issue date: 2015-12-01
  • description.provenance : Submitted by Patricia Black (patricia.black@oregonstate.edu) on 2016-01-08T17:07:04ZNo. of bitstreams: 2LafontaineScottChemistryRelativeInfluenceTransPacific.pdf: 6576248 bytes, checksum: 8b3894ef6177d7dde242ea808d29636c (MD5)LafontaineScottChemistryRelativeInfluenceTransPacificSupportingInfo).pdf: 4474903 bytes, checksum: 3e4a81863834bf587392945c9a224239 (MD5)
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2016-01-08T17:07:21Z (GMT) No. of bitstreams: 2LafontaineScottChemistryRelativeInfluenceTransPacific.pdf: 6576248 bytes, checksum: 8b3894ef6177d7dde242ea808d29636c (MD5)LafontaineScottChemistryRelativeInfluenceTransPacificSupportingInfo).pdf: 4474903 bytes, checksum: 3e4a81863834bf587392945c9a224239 (MD5)

Relationships

Parents:

This work has no parents.

Last modified

Downloadable Content

Download PDF

Items