SmartWay Trends, Indicators, and Partner Statistics (TIPS) is EPA’s resource for leading indicators about freight transportation, supply chain logistics, and quick facts on current SmartWay Partner environmental performance metrics.
Posted August 29, 2017
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- PM2.5, also called “fine particles,” are particles 2.5 microns or smaller that originate from a variety of natural and man-made sources, including diesel combustion engines. Data reported by SmartWay Truck Carrier Partners between 2009 and 2016 show a cumulative savings of 70,000 short tons of fine particulate matter. Why is EPA concerned with these small particles?
Numerous scientific studies have linked particulate matter exposure to health risks, including premature death in people with heart and lung disease, heart attacks, aggravated asthma, irritation of the airways, coughing, and difficulty breathing. People with heart or lung diseases, children, and older adults are the most likely to be affected by PM exposure.
Fine particulates can decrease visibility, causing haze. They can also travel downwind across long distances, so it can affect air quality far from where it was emitted. Therefore, reducing PM2.5 emissions from freight movement plays a critical role in creating and maintaining clear, breathable air, and protecting human health in this country and around the world.
- SmartWay Truck Carriers’ reports from 2009 through 2016 show cumulatively savings of nearly 1.7 million short tons of nitrogen oxides or “NOx,” which here refers to nitric oxide (NO) and nitrogen dioxide (NO2).
NOx is a major ingredient in the creation of ground-level ozone. Ozone exposure is associated with a number of adverse respiratory and cardiovascular effects, which are particularly pronounced among children, the elderly, and among people with lung disease such as asthma. NOx is also a major contributor to PM2.5 formation, which has been linked to a number of adverse health effects, such as heart attacks and premature mortality. In addition, NO2 exposure is linked to asthma attacks and possibly to asthma development in children. NOx also contributes to environmental problems like acid rain and reduced visibility. Therefore, when the freight sector reduces NOx emissions, it reduces acidification of our nation’s lakes and streams, damage to wildlife and agriculture, and harm to human health.
- SmartWay Truck Carrier Partners have saved a total of $27.8 billion, reported cumulatively through 2016, due to reductions in fuel consumption by using fuel-conserving technology and strategies showcased by EPA SmartWay. This information comes from fuel consumption data submitted annually by SmartWay Partners, and is related to fuel price data for each year.
EPA compiles and analyzes data from key segments of the freight transport industry and presents it using informative graphics, charts, and statistics, with links to related information. This collection of leading freight transportation facts, current SmartWay Partner performance metrics, and other notable resources related to transportation supply chain sustainability is known as SmartWay Trends, Indicators, and Partner Statistics, or SmartWay TIPS.
SmartWay TIPS provides:
- Freight transportation information relevant to SmartWay Partners, Affiliates, the media, and other stakeholders.
- Data that are not available from any other published sources besides EPA SmartWay.
- Detailed metrics about freight industry performance.
- Snapshots of companies' performance relative to other SmartWay Partners.
Learn more about the impact SmartWay partners are making on fuel use and environmental quality: