Enhance your knowledge and earn continuing education credits through professional development courses

Advances in Quantitative Optical Gas Imaging (QOGI) 
April 1, 2019, 8:00 am – 12:00 pm

Instructors: Jon Morris and Yousheng Zeng, Providence Photonics

This workshop examines advanced topics related to quantitative optical gas imaging.  Optical gas imaging (OGI) has been used as part of Leak Detection and Repair (LDAR) programs for many years as a qualitative technology.  Recent advancements have enabled quantitative OGI (QOGI) methods to measure emission rates, transforming OGI from a qualitative technology to a quantitative technology.  This workshop will discuss the technical basis for QOGI methods.  It will also present recent studies examining the accuracy and applications for QOGI methods.   Comparisons will be made to other quantitative methods (such as US EPA Method 21) in the context of an LDAR program.  In addition, a thorough discussion of OGI detection limits will be examined with implications for both LDAR programs and emission inventories. 

Learning outcomes: 
  • Review optical gas imaging (OGI) fundamentals
  • Introduce Quantitative OGI (QOGI) methods
  • Comparison QOGI to Method 21 and high flow sampler
  • Review QOGI performance and applications
  • Examine OGI detection limits in context of LDAR and emission inventories

Low Cost Air Sensors 
April 1, 2019, 1:00 pm – 5:00 pm

Instructors: Tim Dye, President, TD Environmental Services LLC
Ron Williams, U.S. Environmental Protection Agency
Andrea Clements, U.S. Environmental Protection Agency
Mike Bergin, Duke University

During this workshop, participants learn about the fundamentals of low-cost air sensors, how they work, and their promises and pitfalls. Detailed topics will include quality assurance and evaluation protocols, 8+ example projects from around the world, and how to plan an air sensor study. Participants will also get an opportunity for hands-on interactions with a range of gas, particle, and VOC sensor systems. Each participant will leave with both general and specific knowledge of appropriate applications of low-cost sensors.
Agenda (Draft) 
1:00 – 1:30      Introduction and background (Tim Dye)
1:30 – 2:00      How low-cost air sensors work (Ron Williams and Mike Bergin)
                                    Gas and VOC (Ron Williams)
                                    Particles (Mike Bergin)
2:00 – 2:30      QA and Evaluation – Status and protocols (Andrea Clements)
2:30 – 2:50      Break
2:50 – 3:20      Promise and pitfalls of low-cost air sensors (Ron Williams)
3:20 – 3:50      Planning a sensor study (Ron Williams and Mike Bergin)
3:50 – 3:20      Example projects from around the world (Tim Dye)
4:20 – 4:30      Q&A, discussion, quiz
4:30 – 5:00      Hands-on interactions with a range of air sensors


Course Fees:  $250 Member; $350 Nonmember.  Fees increase $100 after the Advance Registration Deadline of March 5.  Special EPA Flat Rate for either course: $50.  Register online with the conference registration. The course registration fee IS NOT included in the regular conference registration.