Northeastern Pacific submicrometer aerosol and rainwater composition: A multivariate analysis

Journal Article · Sat Feb 20 04:00:00 EST 1988 · J. Geophys. Res.; (United States)

DOI:https://doi.org/10.1029/JD093iD02p01625· OSTI ID:6774033

Vong, R J; Hansson, H; Ross, H B; Covert, D S; Charlson, R J

Simultaneous observations of aerosol and rainwater composition were performed at a remote, mid-latitude, marine, land-based site to characterize the chemistry of Northeastern Pacific cyclonic frontal air masses. The measured concentrations of both the major ions (SO/sub 4//sup =/, NO/sub 3//sup -/, H/sup +/) and trace metals (Pb, Cu, Cd, Mn, V, Cr, Ni, Zn) in the submicrometer aerosol and rainwater were very low and similar to other remote locations indicating that the Lake Ozette sampling site is not dominated by human activity during on-shore air flow. Statistical analysis indicated that experimental uncertainty was not a significant source of variability and that rainwater solute has independent influences from sea salt and a component that included NH/sub 4//sup +/, H/sup +/, and SO/sub 4//sup =/. Futher investigation of source relationships was performed using 850 mbar trajectories, principal component analysis, partial least squares regression, enrichment factors, and scavenging ratios. Using these methods we conclude that submicrometer aerosol is the main precursor of trace metals and excess sulfate in Northeastern Pacific rain. copyright American Geophysical Union 1988

• Research Organization: Environmental Engineering and Science Program, University of Washington, Seattle, Washington
• OSTI ID: 6774033
• Journal Information: J. Geophys. Res.; (United States), Journal Name: J. Geophys. Res.; (United States) Vol. 93:D2; ISSN JGREA
• Country of Publication: United States
• Language: English

Related Subjects

500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AEROSOLS
CHEMICAL COMPOSITION
COLLOIDS
DISPERSIONS
HYDROGEN COMPOUNDS
MATHEMATICS
MULTIVARIATE ANALYSIS
NORTH AMERICA
OXYGEN COMPOUNDS
PACIFIC OCEAN
POLLUTION SOURCES
RAIN WATER
SEAS
SOLS
STATISTICS
SURFACE WATERS
USA
WATER
WEST COAST