JUNE 2DD3
    WHAT You   SHOULD  KNOW  ABOUT
                                        AIR  PaLLUTION.
                                                              AND   KID!
                              DIESEL   EXHAUST  AND
                              SCHOOL    Bus   IDLING
  Children breathe 50 percent
  more air per pound of body
        weight than adults.

  Diesel exhaust ranks among
   the air pollutants that EPA
  believes pose the greatest
         public health risks.

        More than 24 million
  children in the United States
      ride a bus to and from
         school every day.
     United States
     Environmental Protection
     Agency

          For more information:
Visit www.epa.gov/otaq/retrofit
                     ~or~
   www.epa.gov/cleanschoolbus
          or call 734-214-4780
L/iesel exhaust from idling school buses can accumu-
late on and around the bus and pose a health risk,
particularly to children. When  buses idle in the school
yard, the exhaust also can pollute the air inside the
school building and pose a health risk to children
throughout the day. Exposure to diesel exhaust can
cause lung damage and respiratory problems. Diesel
exhaust also exacerbates asthma and existing
allergies, and long-term exposure is thought to
increase the risk of lung cancer. However, there are
some simple steps that schools can take to reduce idling
time and air pollution.

How  ARE  CHILDREN  AFFECTED?
Air pollution from diesel vehicles has health implications for
everyone, but children may be more susceptible to this
pollution because they breathe 50 percent more air per
pound of body weight than do adults.  Diesel exhaust contains
small particles, known as fine particulate matter, as well as
smog-forming and toxic air pollutants. Exposure to these
pollutants is associated with  increased frequency of childhood
illnesses. More than 24 million children in  the United States
ride a bus to and from school every day.

RECOMMENDED  ACTIONS TO
REDUCE  DIESEL   POLLUTION
Although every school district is unique, there are a number
of steps that schools can take to reduce the health risks
associated with exposure to diesel exhaust. Here are some
actions school districts should consider:

ESTABLISH  IDLING  GUIDELINES
  When school bus drivers arrive at loading or unloading
  areas to drop off or pick up passengers, they should turn
  off their buses as soon  as possible to eliminate idling time
  and reduce harmful emissions. The school bus should not
  be restarted until it is ready to depart.

  If buses need the engine to run the flashing lights, consider
  changing the circuit configurations so that the flashing
  lights can be powered by the battery without the engine
  running.
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            1 printed on 100% recycled paper, with a minimum of 50% post consumer waste, using vegetable based inks
    TEPS YOU
CAN TAKE TD
REDUCE
DIESEL
POLLUTION
                                                                                              O  Direct school bus
                                                                                                  drivers to turn off
                                                                                                  their buses as soon
                                                                                                  as they arrive in the
                                                                                                  school yard.
     Limit idling time of
     buses during early
     morning warm-up.

   Provide a space inside
     the school where bus
     drivers can wait.

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       At school bus depots, limit the idling time during early morning warm-up to what is
       recommended by the manufacturer (generally 3 to 5 minutes). In colder climates,  block
       heaters can help warm the engine of older vehicles to avoid starting difficulties and
       shorten warm-up time. New vehicles are designed to start easily at all temperatures
       without idling.

       In the winter, provide a space inside the school where bus drivers who arrive early can
       wait.

       Follow the anti-idling laws and guidelines that many states have in place.
  WORK CLOSELY WITH Bus COMPANIES  AND Bus DRIVERS  TO
  IMPLEMENT THE GUIDELINES
      Make sure both the  bus company and the bus drivers understand the importance of the
       new guidelines.

      Highlight the economic benefit of reduced fuel consumption as a result of less idling. A
       typical school bus burns approximately one-half gallon of diesel fuel for each  hour it
       idles. Thus, if a company operates 50 buses and each bus reduces its idling time by 30
       minutes per day, at $ I per gallon of diesel fuel, the company would save $2,250 per
       school year in fuel costs.

      Inform drivers of the potential risk to their health from breathing diesel exhaust
       and the  benefits of not idling.

      Establish a program to recognize drivers for their efforts to reduce idling. For example,
       create buttons that drivers who  pledge to follow the guidelines can wear.
  WORK CLOSELY WITH Bus COMPANIES  TO RETROFIT BUSES
  WITH  POLLUTION CONTROLS
      Fuel buses with ultra-low sulfur diesel fuel and install particulate matter filters. This
       approach can reduce emissions of particulate matter by more than 90 percent.

      Consider retrofitting with catalyst technology if the filter/fuel option is not feasible.

      More information about retrofit options is available atwww.epa.gov/otaq/retrofit.


  WORK CLOSELY WITH Bus  COMPANIES TO PURCHASE THE
  CLEANEST NEW  BUSES
      EPA is working to reduce diesel pollution from new heavy-duty diesel trucks and buses
       by setting more stringent emission standards that will take effect beginning in 2004. In
       2007, new trucks and buses rolling off the assembly lines will be 95 percent cleaner than
       today's models.

      Because some buses may meet EPA standards ahead of schedule, ask the manufacturer
       before  purchasing a new bus to see if you can acquire one  that meets these standards. In
       addition, many new buses come equipped with devices  that minimize  idling and warm-up
       time.
             Idling wastes fuel and
             money.

             A typical school bus burns
             approximately one-half
             gallon of diesel fuel for
             each hour it idles.

             The less school buses
             idle, the more money
             school districts can save.
  BECOME A CLEAN  SCHOOL Bus  USA PARTNER
      Clean School Bus USA is a voluntary program that seeks to reduce children's exposure to
       diesel exhaust. More information is available at www.epa.gov/cleanschoolbus.
EPA420-F-03-021 June 2003
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 50% post consumer waste, using vegetable based inks

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