Reading smoke plumes for EPA Method 9

Where to read a plume for Method 9 visible emissions observations

Smoke School” Prepares Air Quality Inspectors to Read Visible

ACP - Impacts of estimated plume rise on PM2.5 exceedance

Definition of visible emissions and opacity for Method 9

An Alternative to EPA Method 9 - Field Validation of a Digital

Remote Sensing, Free Full-Text

What is EPA Method 9 and Why Is it Important?

🎈 Public Lab: EPA Method 9: Visual Determination of the Opacity

Whitlow Green EPA Smoke School, LLC Method 9 Training

Smoke School” Prepares Air Quality Inspectors to Read Visible

Whitlow Smoke School - EPA Visible Emissions Evaluator Training

Digital Opacity Compliance System Second Generation - ppt download