Data and Tools

Carbon Monoxide Trends

National and regional trends in carbon monoxide.

Previous Air Quality Trends Reports

Link to archive of historical air quality trends reports

Air Quality - Cities and Counties

City and County tables of air quality data - status and trends.

Ambient Air Toxics Trends Tool

This application is an expansion of the Air Trends Report displaying the annual ambient air toxics monitoring trends.

PFAS

Chemicals of Special Concern – waste management and releases of per- and polyfluoroalkyl substances (PFAS) in 2021 and 2022 for the 2022 Toxics Release Inventory National Analysis.

Meteorological Data - Massachusetts

Provides data files of 1961-1990 daily and hourly meteorological data available for weather stations in Massachusetts

2009 TRI National Analysis Basic Data Files

Downloadable files containing the data used in the 2009 TRI National Analysis reports provided in the basic file format.

2010 TRI National Analysis Basic Data Files

Downloadable files containing the data used in the 2010 TRI National Analysis report provided in the basic file format.

2007 TRI Public Data Release Data Files

Downloadable TRI data files for calendar year 2007.

2006 TRI Public Data Release Data Files

Downloadable data files for calendar year 2006 TRI data.

2001 TRI Public Data Release Data Files

Downloadable data files for calendar year 2001 TRI data available in several different formats.

“Benchmarking a 2016 Honda Civic 1.5-liter L15B7 Turbocharged Engine and Evaluating the Future Efficiency Potential of Turbocharged Engines,” SAE Technical Paper 2018-01-0319, 2018, Mark Stuhldreher, John Kargul, Daniel Barba, Joseph McDonald, Stanislav B

This paper complete EPA benchmarking study of a 2016 Honda Civic with a 4-cylinder 1.5-liter L15B7 turbocharged engine and its CVT, including both chassis testing and engine dynamometer testing to measure vehicle and engine efficiencies.

“Predictive GT-Power Simulation for VNT Matching on a 1.6L Turbocharged GDI Engine,” SAE Technical Paper 2018-01-0161, 2018, Dennis Robertson, Graham Conway, Chris Chadwell, Joseph McDonald, Daniel Barba, Mark Stuhldreher, Aaron Birckett

This paper describes an engine model developed using GT-Power software with a predictive combustion mechanism which assessed the performance of a VNT’s ability to support low pressure LP-EGR across the engine operating map and its impact on thermal e

“Selective Interrupt and Control: An Open ECU Alternative,” SAE Technical Paper 2018-01-0127, 2018, Logan Smith, Ian Smith, and Scott Hotz

This paper describes the development process of SIC that enabled a test engineer to command off-calibration setpoints for intake and exhaust cam phasing as well as ignition timing without the need for an open ECU duplicating the stock calibration.

“Modeling and Controls Development of 48V Mild Hybrid Electric Vehicles,” SAE Technical Paper 2018-01-0413, 2018, SoDuk Lee, Jeff Cherry, Michael Safoutin, Anthony Neam, Joseph McDonald, Kevin Newman

This presents controls development, modeling results, and model validation for simulations of a vehicle with a 48 V (BISG) mild hybrid electric vehicle and an initial model design for a 48 V inline on-axis P2-configuration mild hybrid electric vehicle.

TRI Source Reduction Reporting

“Evaluation of Emerging Technologies on a 1.6 L Turbocharged GDI Engine,” SAE Technical Paper 2018-01-1423, 2018, Graham Conway, Dennis Robertson, Chris Chadwell, Joseph McDonald, John Kargul, Daniel Barba, Mark Stuhldreher

Paper presents the results of the baseline testing on an engine run with a prototype controller and initially tuned to mimic an original equipment manufacturer (OEM) baseline control strategy running on premium fuel (92.8 anti-knock index) and other tests.