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All posts in “Transportation”

By Air Sciences Inc.

2022 PNWIS Conference

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MOVES: Details make the design

Infrastructure and transportation are having a moment in media coverage and political efforts. These umbrella terms mostly bring ports, bridges, and roads to mind, but they also include something in Air Sciences’ wheelhouse: MOVES, the MOtor Vehicle Emission Simulator, developed and funded by the United States Environmental Protection Agency (EPA). Now in its third iteration, MOVES provides a snapshot of tailpipe emissions for on- and off-road motor vehicles. The model encompasses six common air pollutants (ground-level ozone, particulate matter, carbon monoxide, lead, sulfur dioxide, and carbon dioxide, known collectively as criteria air pollutants), greenhouse gases, and hazardous air pollutants.  

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Oregon DEQ’s Non-road Diesel Emission Inventory

The Oregon Department of Environmental Quality (DEQ) has issued the final Oregon Nonroad Diesel Equipment Survey and Emissions Inventory, completed with the help of Eastern Research Group, Inc. (ERG); Good Company LLC; and Oak Leaf Environmental, Inc. The aim of this study was to generate Oregon-specific data of non-road equipment characteristics, such as: engine age, activity rate, fuel consumption, and geographic distribution.

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New Article Highlights Air Quality Impacts of Road Salts

One of Air Sciences’ senior scientists, Dr. Katheryn Kolesar, recently published an article in Atmospheric Environment, with colleagues from the University of Michigan’s Pratt Lab, examining particulate formation due to road salt applications.
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Latest Posts

  • Science in Support of Smart Regulation: How Air Sciences Helped Shape EPA’s Gold Mining Policy
  • Advanced Wildfire Smoke Tracking for Legal Clarity and Support, Part II
  • Advanced Wildfire Smoke Tracking for Legal Clarity and Support, Part I

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AIR SCIENCES

Air Sciences is a team of scientists and engineers dedicated to finding the right solutions for our clients.

We specialize in air quality services including dispersion modeling, permitting, compliance, monitoring, data management, and fire science.

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Latest News

  • Science in Support of Smart Regulation: How Air Sciences Helped Shape EPA’s Gold Mining Policy
    In the late 2000s, questions emerged about whether hydrogen cyanide (HCN) emissions from gold mining cyanide leach operations could pose a risk to nearby communities. Rather than relying solely on conservative assumptions or modeling, the U.S. Environmental Protection Agency (EPA) invoked its authority under Clean Air Act Section 114 to request real-world data. In response,… Read more: Science in Support of Smart Regulation: How Air Sciences Helped Shape EPA’s Gold Mining Policy
  • Advanced Wildfire Smoke Tracking for Legal Clarity and Support, Part II
    Rising global temperatures have increased the frequency and intensity of wildfires worldwide, especially in northern and temperate forests. These extreme fires have sparked significant legal claims affecting agriculture, forestry, tourism, and infrastructure. Accurately understanding wildfire smoke dispersion is vital in legal disputes to identify which fires caused specific impacts and to gauge their effects amid… Read more: Advanced Wildfire Smoke Tracking for Legal Clarity and Support, Part II

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