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Title: Identification of source contributions to visibility-reducing organic aerosols in the vicinity of Grand Canyon National Park. Interim final report

Technical Report ·
DOI:https://doi.org/10.2172/10178297· OSTI ID:10178297
; ;  [1]; ; ; ; ;  [2]
  1. Brookhaven National Lab., Upton, NY (United States)
  2. California Inst. of Tech., Pasadena, CA (United States). Dept. of Environmental Engineering Science

Sulfates and carbonaceous aerosols are the largest contributors to the fine particle burden in the atmosphere near Grand Canyon National Park. While the effects of sulfate particles on visibility at the Grand Canyon has been extensively studied, much less is known about the nature and origin of the carbonaceous aerosols that are present. This disparity in understanding arises from at least two causes: aerosol carbon data for the region are less plentiful and many of the sources that could contribute to that organic aerosol are both diverse and not well characterized. The objective of this present study is to examine the origin of the carbonaceous aerosol at Grand Canyon National Park during the summer season based on molecular tracer techniques applied to source and ambient samples collected specifically for this purpose.

Research Organization:
Brookhaven National Lab. (BNL), Upton, NY (United States); California Inst. of Tech., Pasadena, CA (United States). Dept. of Environmental Engineering Science
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
AC02-76CH00016
OSTI ID:
10178297
Report Number(s):
BNL-49283; ON: DE93018815; CNN: Contract CX-0001-8-0017
Resource Relation:
Other Information: PBD: Jun 1993
Country of Publication:
United States
Language:
English