Diesel Exhaust not good for you

But then we knew that.
Saw this; thought I'd post it (and the link.) There's a reason for DPF and low-sulfur fuel, and the catalysts.

http://www.seattlepi.com/news/articl...er-3377932.php

WASHINGTON (AP) — There's new evidence that exposure to exhaust from diesel engines increases the risk of lung cancer.
Diesel exhaust has long been classified as a probable carcinogen. But the 20-year study from the National Cancer Institute took a closer look by tracking more than 12,000 workers in certain kinds of mines — facilities that mined for potash, lime and other nonmetals. They breathed varying levels of exhaust from diesel-powered equipment, levels higher than the general population encounters.
The most heavily exposed miners had three times the risk of death from lung cancer compared to workers with the lowest exposures, said the study released Friday by the Journal of the National Cancer Institute.

Meh,,, we have ULSD, dpf's and def's now, you can suck on your pipe all day without fear.

Originally Posted by cssnms

Meh,,, we have ULSD, dpf's and def's now, you can suck on your pipe all day without fear.

Yup. With the regenerating particle filters and SCR catalyst, they are now cleaner than gasoline engines (neither of which are used on mine equipment).

Since I was a kid I've always gone on the assumption that exposure to *any* vehicle's exhaust wasn't too spiffy.

Originally Posted by floydarogers

The most heavily exposed miners had three times the risk of death from lung cancer compared to workers with the lowest exposures, said the study released Friday by the Journal of the National Cancer Institute.

But were these figures corrected to account for possible variations in the prevalence of cigarette smoking,exposure to asbestos,etc?

Recent studies haven't been that good for gasoline engine emissions either...

New real-time measurements suggest that black carbon emissions from light-duty gasoline vehicles are significantly underestimated

(John Liggio, et al (2012), “Are Emissions of Black Carbon from Gasoline Vehicles Underestimated? Insights from Near and On-Road Measurements.” Environmental Science & Technology, http://www.greencarcongress.com/2012...-20120229.html)

Study finds gasoline exhaust contributes more to formation of secondary organic aerosols than diesel

(Bahreini, R., et al. (2012), “Gasoline emissions dominate over diesel in formation of secondary organic aerosol mass.” Geophys. Res. Lett., http://www.greencarcongress.com/2012...-20120303.html)