Final Report - PREVENT
The Pacific Northwest
Regional Visibility Experiment Using Natural Tracers

Principal
Authors: William C. Malm1, Kristi Gebhart1,
John Molenar2, Robert Eldred3,
Halstead Harrison4
Click
on the title below to view PDF
files of these documents:
Cover
Page (6 KB)
Table
of Contents (13 KB)
Overview
and Synopsis (4561 KB)
Introduction
(4223 KB)
Field
Monitoring Program (1055 KB)
Optical
Data Analysis (8218 KB)
Aerosol
Sample Analysis (1725 KB)
A
Weather Summary for the Pacific Northwest,July 6-September 6, 1990 (2945 KB)
Characteristics
of Particulate Concentrations and their Optical Properties (8868 KB)
Aerosol
Acidity (2774 KB)
Exploration
of Relationships among Aerosols (2075 KB)
Attribution
of Aerosol Species to Sources Using Chemical Mass Balance and Regression
Analysis (2332 KB)
Analysis
of Air Mass Back Trajectories (1349 KB)
Spatial
and Temporal Patterns in Measured Data (21,232 KB)
Appendix
1-Addendum (2953 KB)
Appendix
2 (780 KB)
Appendix
3 (857 KB)
Appendix
4 (966 KB)
Appendix
5 (661 KB)
Appendix
6 (5989 KB)
Appendix
7 (2315 KB)
Appendix
8 (4960 KB)
Appendix
9 (2306 KB)
Appendix
10 (2008 KB)
1National
Park Service-Air Resources Division
2Air
Resources Specialists, Inc.
3Crocker
Nuclear Laboratory
4Wyndsoft,
Inc.