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Originally Posted by Carrameow
Why does NJ DOT ban idling Diesel >3mins. at convenience stores? Lately I have seen these Notices at the cash registers of every Wawa I stop at for coffee." YOU CAN BE FINED UP TO $3000 FOR IiDLING A DIESEL FOR MORE THAN 3 MINUTES..." I am not disagreeing or protesting this. I am simply trying to educate myself. Do our diesel produce high concentrates of S04 at prolonged idle? Are diesels environmentally unsound at prolonged idling because we run "cooler" than gas engines and don't combust fully at idle? I just want to be able to prepare myself the next time someone asks me..
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I don't know if this will adequately answer your question, but you might start with this
page from the New Jersey DEP. Note that there are links in the upper right hand corner of that page leading to further information. From one of the pages linked:
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Why is DEP targeting idling vehicles?
The idling of diesel-powered vehicles produces a wide variety of air pollutants, including particulates, nitrogen oxides, volatile organic compounds, formaldehyde and other toxic air pollutants. Some of these air pollutants are known carcinogens. Particulate matter can cause health problems ranging from difficulty in breathing to heart attacks. While the DEP has responded to citizen complaints about idling vehicles for many years now, it is especially important to reduce idling during the warmer months when poor air quality impacts vulnerable parts of the population, such as children, the elderly and people with respiratory or coronary disease. In fact, the number of premature deaths in New Jersey each year caused by exposure to particulates exceeds the number of deaths from homicides and motor vehicle accidents.
In addition to the environmental risks, idling vehicles unnecessarily consume fuel and increase long-term engine maintenance costs. Idling is also an occupational hazard as it exposes drivers to dangerous levels of particulates and other toxins.
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(I found this by searching on "New Jersey" + idling + diesel using Google.)
-- eskimo