Other related documents:
Visibility Monitoring Guidance, EPA-454/R-99-003 - This guidance
document was prepared to provide assistance to those organizations responsible
for collecting visibility and particulate matter data for regulatory and
planning purposes.
Interpolating Relative
Humidity Weighting Factors to Calculate Visibility Impairment and the Effects of
IMPROVE monitor Outliers. A Draft Reference Document for Regional Haze Tracking Progress
Guidance.