A conventional lawn mower pollutes as much in an hour as 40 late model cars (or as much as as much air pollution as driving a car for 100 miles).

A typical 3.5 horsepower gas mower, for instance, can emit the same amount of VOCs -- key precursors to smog -- in an hour as a new car driven 340 miles, say industry experts. A recent California Air Resources Board report shows lawnmowers statewide emit 8.28 tons of VOCs per day.
The replacement of every 500 gas mowers with non-motorized mowers would spare the air:
- 212 pounds of hydrocarbons
(smog ingredient) - 1.7 pounds of nitrogen oxides
(smog ingredient) - 5.6 pounds of irritating particles
- 1,724 pounds of carbon dioxide
To top it off, lawn and garden equipment users inadvertently add to the problem by spilling 17 million gallons of fuel each year while refilling their outdoor power equipment. That's more petroleum than spilled by the Exxon Valdez in the Gulf of Alaska. (all according to this website)




