Mobile sources include cars and
trucks, of course, but also lawn mowers, airplanes and anything else that moves
and puts pollution into the air. Motor vehicles emit several pollutants that EPA classifies as
probable human carcinogens. EPA estimates that mobile (car, truck, bus,
tractors and snowmobiles) sources of air toxics account for some cancers
attributed to outdoor sources of air toxics. This estimate is not based on
actual cancer cases, but on models that predict cancers that could be
expected.
Some toxic compounds are present in gasoline and are emitted to
the air
when gasoline evaporates or passes through the engine as
unburned fuel.
Benzene, for example, is a component of gasoline. Cars emit
small
quantities of benzene in unburned fuel, or as vapor when
gasoline
evaporates.
A significant amount of automotive benzene comes from the
incomplete
combustion of compounds in gasoline such as toluene and xylene
that
are chemically very similar to benzene. These mobile source
pollutants undergo chemical reactions in the atmosphere. (EPA)
So how can you make a difference? Well for starters you can
drive less. If everyone droves one day less and biked for example we could cut
back immensely on harmful emissions. One easy solution to this problem is to
carpool, take public transit, or ride a bike. A unique iea would be to set up a
carpool hotline at work or school so others could contribute to sustainability
as well. It might be a little uncomfortable at first but the results are worth
it.
How about driving an electric car?
ReplyDelete