FHWA Air Quality and Sustainable Transport Highlights: May/June, 2021

FHWA Air Quality and Sustainable Transport Highlights: May/June, 2021

The purpose of this message is to inform you that the latest issue of the FHWA Air Quality and Sustainable Transport Highlights is now available.

The Highlights provide the latest news and information on transportation related air quality and sustainability activities, including information on transportation conformity, resiliency, and other related activities.

Items of interest in this issue include:

  • FHWA Releases the Database for Air Quality and Noise Analysis (DANA) Tool and the Traffic Noise Model Aide (TNMAide) Spreadsheet
  • NCHRP Releases Guide to Mainstreaming Resilience into Transportation Agencies

Past issues of the Air Quality and Conformity Highlights are available at: http://www.fhwa.dot.gov/environment/air_quality/conformity/highlights/

Past issues of the Sustainable Transport Newsletter are available at: https://www.fhwa.dot.gov/environment/sustainability/newsletter/index.cfm

Introduction to MOSERS Training

The Introduction to MOSERS training has been scheduled for Thursday, July 8, 2021, from 1:00 pm to 3:00 pm. Please feel free to share this webinar information with your colleagues and partner organizations that may be interested.
The webinar will be held via Microsoft Teams:
Join on your computer or mobile app
Or call in (audio only)
+1 512-333-4990,,186471536# United States, Austin
Phone Conference ID: 186 471 536#
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Introduction to Texas Guide to Accepted Mobile Source Emission Reduction Strategies (MOSERS)
This 2-hour webinar will provide an introduction to the MOSERS Guidebook, equations, and spreadsheet tool; and includes a hands-on demonstration of calculating emissions benefits using the MOSERS spreadsheet tool and equations. The webinar will focus on the following topics:
  •   Background – Mobile Source Emission Reduction Strategies
  • Overview of MOSERS Guide
    • History
    • Components
    • Applications & Documentation
  • Overview of Emission Benefits Estimation
  • Hands-on Exercises
    • MOSERS Equations
    • MOSERS Spreadsheet Tool

Beta Release of EPA’s Marine Emissions Tools

Today EPA is releasing a beta version of Marine Emissions Tools, a set of R packages designed to calculate emissions from Category 3 commercial marine vessels (CMVs), such as tankers and general cargo ships, in a manner consistent with EPA’s regulations and Port Emissions Inventory Guidance. Emissions from CMVs are a critical input to developing comprehensive emissions inventories for ports. This updated toolset will improve the accuracy of emissions estimates from CMVs and make it easier for stakeholders to develop inventories in a manner consistent with EPA guidance. The beta versions released today may be used to develop inventories to meet regulatory requirements, as well as for voluntary and research purposes. EPA is requesting stakeholder feedback through September 30, 2021.

EPA’s Marine Emissions Tools can be downloaded from https://www.epa.gov/moves/emissions-models-and-other-methods-produce-emission-inventories or installed directly from GitHub. Questions and other feedback regarding this beta toolset can be posted as issues on the Marine Emissions Tools GitHub page. 

PM NAAQS Reconsideration Announcement

EPA has announced that it will reconsider the previous administration’s decision to retain the particulate matter (PM) National Ambient Air Quality Standards (NAAQS). EPA is reconsidering the December 2020 decision because available scientific evidence and technical information indicate that the current standards may not be adequate to protect public health and welfare, as required by the Clean Air Act.

The press release is available here: https://www.epa.gov/newsreleases/epa-reexamine-health-standards-harmful-soot-previous-administration-left-unchanged.

More information on PM NAAQS and other relevant documents can also be accessed on our website here:

Revised Air Quality Designations for the 2015 Ozone NAAQS

In response to a July 2020, D.C. Circuit Court remand, EPA is taking action on its review of the Agency’s original designation for 16 counties for the 2015 National Ambient Air Quality Standards for ozone.  EPA is taking final action to revise the boundaries for six nonattainment areas in four states (Illinois, Indiana, Missouri and Wisconsin) and reaffirming the April 30, 2018, designation associated with Ottawa County, Michigan.  In the case of the Doña Ana County, NM and Denver Metro/North Front Range, CO nonattainment areas, upon further review, EPA intends to revise its initial designation. Because EPA’s intended designations for the associated remanded counties of El Paso, TX and Weld, CO, respectively, disagree with the states’ area recommendations, EPA is sending letters to each state opening a 120-day period for the states to provide additional information based on the existing record. The Agency will notify both New Mexico and Texas of this planned addition.  EPA is also opening a 30-day period for the public to comment. Additional information:  www.epa.gov/ozone-designations; https://www.epa.gov/ozone-designations/ozone-designations-regulatory-actions

EPA 120-day letter to Texas: https://www.epa.gov/sites/production/files/2021-05/documents/tx_120-day_letter_05-25-2021-signed.pdf

Technical Support Document: https://www.epa.gov/sites/production/files/2021-05/documents/final_clean_el_paso-las_cruces_tsd_remand.pdf