Why Electric School Buses Matter

• Diesel-powered vehicles account for nearly half of NOx and over two-thirds of all particulate matter
• emissions from US transportation sources
• Diesel exhaust contains as many as 40 hazardous air pollutants as defined by the Clean Air Act
• Riding a diesel bus every day can increase a child’s risk for cancer by 4%, lower respiratory symptoms by
• 6%, and daily asthma hospitalizations by 1%. (California Air Resources Board, 2016)
• 71% of the cancer risk from air pollutants for the average Californian is associated with diesel emissions
• (California Air Resources Board)
• Children are exposed to airborne particulate concentrations inside buses that are sometimes 5-15 times
• higher than background levels (Yale University, 2002)
• Concentrations of air pollutants have dropped significantly since 1990, but are still dangerously high in
• many parts of the country
• Learn how electric school buses can be cost neutral to diesel school buses