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polution in the winter(7 posts)

polution in the winterishmael
Oct 7, 2001 6:50 PM
for some reason i smell more exhaust from cars in the winter than during the summer...is there more out there or am i being exposed to more because its cold out...if only there were no cars on the road it would be perfect..less deaths...no need for oil..there arent cars in heaven
May depend on where you livemickey-mac
Oct 7, 2001 7:44 PM
Different areas experience high pollution levels during different times of the year. In the L.A. area, we have an inversion layer in the summer that keeps pollutants near ground level. Other cites, such as Phoenix and Denver (I believe), have a winter inversion layer that causes increased air pollution. Maybe you live in one of the areas that has higher levels of pollutants in winter.
re: polution in the winterharlett
Oct 7, 2001 7:50 PM
strong cold temperature inversions causes air to trap pollution close the to ground..this leads to increased carbon monoxide levels from automobiles to be around you.
re: polution in the winter..no cars in heaven?ohithinkso
Oct 7, 2001 10:14 PM
no cars in heaven. the short list. any model T, dusenburg, cord, packard. 57 tbird, 55,6,7 chevy, 53 thru ? vette, lots of mercedes, bmw's, etc. AMC pacer, oh it's heaven not hell. LOL
beautiful carsishmael
Oct 8, 2001 5:40 AM
i dont know what i like but i like em old and often american...they would all be converted to fuel cell technology in heaven, only emiting nice, warm, clean steam..wait,,we could do that here...
air pollutionbianchi boy
Oct 8, 2001 7:19 AM
What harlett and micky said is correct. Air pollution can vary by season, location, weather conditions and a number of other factors.

In the summer, ozone is the primary air quality problem in the East and Midwest (not sure about far West). Ozone is a secondary pollutant caused when hydrocarbons and nitrogen oxides react in the air on hot, sunny days with little wind. Thus, ozone generally is a problem only during the warmer months, May through September. The main sources of these pollutants are motor vehicles and coal-fired power plants. Ozone is an odorless, colorless gas at the levels normally encountered, but the air often appears hazy and gray on bad-ozone days because of other pollutants present at the same time.

In the winter, the main pollution problems are generally carbon monoxide and particulates (dust and soot). As harlett mentioned, temperature inversions tend to concentrate pollutants near the ground. Such inversions are generally more common during the cooler months, so that could explain why the air is bothering you more right now. However, the fall is often a bad time for pollen, dust and other naturally occuring things in the air that can bother people's breathing.
also...filtersweep
Oct 8, 2001 4:03 PM
A car's emissions controls really don't work until the car is heated up, which is why a cold car's computer makes it idle at a higher rpm until it is warm.

Also, in colder climates, rumour has it (meaning that I read this in the paper, but can't find the source) that they reformulate gas to a "winter gas" that is somehow different than "summer gas"- and that might contribute to the issue. I don't know that I smell more or less exhaust in the winter, but it does smell different.