EPA Air Toxics Monitoring Project in Louisville


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The U.S. Environmental Protection Agency is testing new and advanced air toxics monitoring technology in Louisville's Rubbertown neighborhood.

Funded via the EPA's Regional Applied Research Effort (RARE), the project aims to learn more about the technology in the hope that it can be used on a widespread basis around the country. The Air Pollution Control District is assisting the EPA in siting and operating the various technologies being tested.

The data collected will be made available to the public. See the links below for the data presentations thus far.

EPA researchers began the project in 2017 and are working with the APCD and other partners -- including those from industry, the information/technology sector, and academia -- to deploy, test, and evaluate next generation emission measurement (NGEM) systems and equipment prototypes to detect and mitigate fugitive emissions and equipment leaks. NGEM systems include a broad spectrum of air pollutant measurement approaches ranging from low-cost, time-integrated passive samplers to sophisticated open-path optical spectroscopic instrumentation. NGEM systems may be mobile or fixed in place, and may provide information relevant on a variety of spatial scales.

Over the course of the project, a number of NGEM systems and equipment prototypes will be deployed and tested in the field. This project will collaboratively identify several emerging NGEM systems and equipment to be tested in the field with the primary goal of evaluating the effectiveness of these new technical approaches to measure fenceline emissions from fugitive sources and equipment leaks. If proven effective, the project will inform emissions inventory methodology and modeling assumptions regarding fugitive emissions. 

Check out EPA’s latest project overview here:

Project Overview (pdf)

About the RARE Program (pdf)

EPA Next Generation Emission Measurement Demonstration Project website

NGEM Demo Project Quality Assurance Project Plan – 8/7/17 (pdf)

EPA Community Presentation 4/19/2017 (pdf)

EPA Community Presentation 9/28/2017 (pdf)

EPA Community Meeting Video 9/28/2017

EPA Project Update March 27-28, 2018 (pdf)

EPA Citizen Science Project Mobile App for Reporting Odors (pdf)

EPA Project Update October 29-30, 2018 (pdf)

Air Pollutant Source Investigation using Next Generation Emission Measurements and Models (pdf) (Early Case Studies of 1,3-Butadiene Emissions in Louisville, Ky. | NEIC 2018 Tech Summit, Denver, Colo., Aug. 21, 2018)

Next Generation Emission Measurements of 1,3-Butadiene Emissions in Louisville, KY – Select Interim Results (Durham, NC) (April 2-4, 2019)

Update on Emerging Sensor Technology and Analytics (Houston, TX) (August 27-28, 2019)

Presentation to Rubbertown Community Advisory Council 9/12/2019 (pdf)

Low-cost Sensors Applications for Improved Control of Fugitive Industrial Emissions (12/13/2019) 

Next Generation Emissions Measurement and Odor Projects in the Rubbertown Area (Louisville, KY) (2/27/2020) 

Spatial analysis of volatile organic compounds using passive samplers in the Rubbertown industrial area of Louisville, Kentucky, USA (6/1/2020) (pdf)

Community Update Presentation to the West Jefferson County Community Task Force:  Rubbertown NGEM Demonstration and Odor App Project (4/20/2021)

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