Iit is difficult to have a dialogue with someone that deletes his posts and later denies what he had written.marti wrote:
Do you see vehicle emissions measured in grams per mile?
As for the measurement of particulate matter, your claim of it being measured on grams per mile needs a better source (a newer one?).
Do you have a source for your deleted claim of large SUVs producing less pollution than small cars?
EPA's health-based national air quality standard for PM-10 is 50 µg/m3
http://www.epa.gov/airquality/particlep ... ndards.pdf
Pollution by law (and in practice with readily available instruments) is measured in "parts per million"
That far back?In 1966, the first emission test cycle was enacted in the State of California measuring tailpipe emissions in PPM (parts per million).
After the Beatles released the Rubber Soul album at the end of 1965, they recorded their follow up album Revolver then embarked on a world tour.
Why is it not expressed in grams for a certain amount of fuel? ...grams/liter? grams/gallon? Why in grams per mile/km?marti wrote:
Since you can't comprehend the use of grams/mile or g/km as the long-established standard
Some surveys say that trucks idle anywhere from 6-8 hours a day for as many as 250 to 300 days each year.
ha,ha,haa... Lemon juice is acerbic..Nice quote, harsh or severe, but he is back..!john wrote:The acerbic one has risen from the emissions.
Ounce per mile, sounds odd haha.
Grams per Km is a completely different thing then PPM btw. PPM only tells you what percentage of one cube of exhaust is pollutants. Grams per Km tells you how much pollutant is created for every Km travelled. Its the same as measuring it in Miles per gallon, or Km per litre, when comparing between different vehicles effects on the environment. As we presume all readings are taken using near identical fuel.
Grams per litre would tell you how environmentally friendly a fuel type was, but not the car. As different cars use different amounts of fuel. One that burns more will obviously create more exhaust, and as such more pollution.
Not sure what the sulphur (SOx emission) levels are in fuel in Chile, this heavily effects the environment.
Nitrogen oxides (Nox) levels are are more related to condition of engine, and if the spares used are real, or cheap copies.