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Diesel fumes more polluting than gas, new California study finds

Los Angeles Times -- The study, which appeared Monday in the journal PNAS, focuses on a specific form of pollutant known as secondary organic aerosol, or SOA. The pollutant is a major element of smog and can contribute to heart and respiratory problems.

"We can now say that, while both motor vehicle sources are important for these 'secondary' particles, diesel is responsible for a larger proportion, especially in regions such as the San Joaquin Valley with a lot of diesel use," said senior author Allen Goldstein, an environmental scientist at UC Berkeley.

The analysis contradicts an earlier study published in March, which found that gasoline emissions were a greater contributor to secondary organic aerosol. The topic promises to remain one of heated debate as it carries serious implications for gover

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Submitted Jan 31, 2013 By: TIGERPAW46

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remay Champion Author Houston Posts:6,968 Points:2,117,615 Joined:May 2006	Message Posted: Feb 1, 2013 6:49:02 AM Ignore remay Report Abuse But, but, but... diesel is supposed to be "green" - all the stations list their price in "green"
virostek Veteran Author Virginia Posts:423 Points:90,285 Joined:Oct 2012	Message Posted: Feb 1, 2013 6:37:15 AM Ignore virostek Report Abuse Ha.
nb52 Champion Author Grand Rapids Posts:7,780 Points:1,546,850 Joined:Nov 2008	Message Posted: Feb 1, 2013 6:28:23 AM Ignore nb52 Report Abuse OH oh, not good for the maker's of cars which have increased diesel car production.
NedW Champion Author Indianapolis Posts:5,620 Points:1,143,220 Joined:Mar 2008	Message Posted: Feb 1, 2013 1:07:25 AM Ignore NedW Report Abuse Thank you for submitting this article, TIGERPAW46.
DanMtz Champion Author Oakland Posts:3,355 Points:1,243,325 Joined:Oct 2009	Message Posted: Jan 31, 2013 7:44:17 PM Ignore DanMtz Report Abuse Another reason for trucks to switch to natural gas.
PDQBlues Champion Author San Diego Posts:7,074 Points:1,448,325 Joined:Jan 2009	Message Posted: Jan 31, 2013 3:03:51 PM Ignore PDQBlues Report Abuse Diesel was a lot more polluting decades ago before it was cleaned up. Unsurprising that it's still more polluting then gasoline.
fuel2use Champion Author Seattle Posts:3,488 Points:733,325 Joined:Dec 2010	Message Posted: Jan 31, 2013 12:55:03 PM Ignore fuel2use Report Abuse That and ships in the port. Been that way for 50 years.
jeffbone Champion Author Virginia Posts:1,364 Points:400,895 Joined:Mar 2011	Message Posted: Jan 31, 2013 10:30:43 AM Ignore jeffbone Report Abuse Anything to prop up the hybrid market, eh?
MacDad614 Champion Author Atlanta Posts:3,032 Points:1,176,810 Joined:Aug 2008	Message Posted: Jan 31, 2013 10:15:40 AM Ignore MacDad614 Report Abuse WHY do people in Oregon always look down their noses at California residents? At least California isn't China where fresh air is being sold to the gullible in soda cans because of the polluted air. In the '70s the diesel exhaust contained a lot of particulates. Those are gone, but the other gases are not. Speaking of smelly exhaust when driving behind diesel buses and trucks, just drive behind an older car or truck and smell that oil burner with incomplete combustion of the gasoline. What a stink. I recently was following a guy in an older car that smelled of raw gasoline. I wonder if that car has caught fire yet.
tomok Champion Author Portland Posts:33,020 Points:2,345,510 Joined:Aug 2006	Message Posted: Jan 31, 2013 9:37:50 AM Ignore tomok Report Abuse Diesel fumes more polluting than gas? LA Times? They live in that depression the wind does not clear out very well, a major lack of fresh air for them and exhaust gases collect much easier there! Many gasous and combustion vapors are polluting: gasoline, diesel, carbon dioxide, sulfur dioxide, nitrous oxides, volcano off gassing and my uncle clem's nasty butt farts! Europe has many diesel vehicles and they don't seem to have a problem with diesel exhaust pollution. If you ever follow behind a bus or a large diesel truck, you will smell the exhaust very clearly. In the 70's and 80's, vehicle exhaust was really bad, with clouds of smoke puffing out the back too! Vehicles today are much cleaner burning with a much cleaner exhaust. Whatever the size or shape of the vehicle, vehicle manufactures Produce and the population ‘Drives’ vehicles with high MPG, are very safe, reliable, have a ‘reasonable’ cost and a good ‘value’ for the money. The price of fuel at the pump is too high! XII/XXII/MMXII! - The Day After......
bluebird1 Champion Author Toronto Posts:15,735 Points:3,108,125 Joined:May 2004	Message Posted: Jan 31, 2013 9:32:34 AM Ignore bluebird1 Report Abuse Too many studies leading to mixed results!!!
OldMan322 Champion Author Illinois Posts:5,155 Points:1,595,490 Joined:Jul 2008	Message Posted: Jan 31, 2013 9:23:31 AM Ignore OldMan322 Report Abuse "henryeOH" Yes, as always
henryeOH Champion Author Akron Posts:1,076 Points:59,070 Joined:Jan 2011	Message Posted: Jan 31, 2013 9:10:37 AM Ignore henryeOH Report Abuse bunch of crap
infinititom All-Star Author Dallas Posts:994 Points:517,380 Joined:Oct 2011	Message Posted: Jan 31, 2013 9:10:03 AM Ignore infinititom Report Abuse By definition, the act of living will cause pollution.
cucamongacurtis Champion Author San Bernardino Posts:1,039 Points:220,110 Joined:Oct 2012	Message Posted: Jan 31, 2013 9:07:45 AM Ignore cucamongacurtis Report Abuse Our green friends on the left won't be happy until we are living in caves,
tc17a Rookie Author South Carolina Posts:56 Points:359,595 Joined:Mar 2012	Message Posted: Jan 31, 2013 9:02:27 AM Ignore tc17a Report Abuse Once again some people will never change old school thinking is why we are falling behind the rest of the world. I'll keep my CLEAN DIESEL until it dies then I'll buy two more. It does not smell, its not slow and I get over 40 mpg. Win win.. west coast study?? what did they use trucks from the 70's which aren't on the roads in a great amount. You get more work out of a diesel thats why trains, buses, trucks, and back up power plants use it.
8ballnd Champion Author North Dakota Posts:2,116 Points:285,750 Joined:Feb 2008	Message Posted: Jan 31, 2013 8:59:53 AM Ignore 8ballnd Report Abuse da
gilfarm Champion Author Alabama Posts:6,796 Points:1,948,840 Joined:Sep 2005	Message Posted: Jan 31, 2013 8:59:38 AM Ignore gilfarm Report Abuse So they really have no idea!
scu227 Champion Author New Haven Posts:4,152 Points:771,880 Joined:Feb 2011	Message Posted: Jan 31, 2013 8:59:25 AM Ignore scu227 Report Abuse OK
hvyd1 All-Star Author Chicago Posts:825 Points:77,625 Joined:Feb 2012	Message Posted: Jan 31, 2013 8:58:37 AM Ignore hvyd1 Report Abuse could have figured that out by myself.
TxMtb Champion Author Ohio Posts:1,540 Points:344,330 Joined:Feb 2012	Message Posted: Jan 31, 2013 8:58:12 AM Ignore TxMtb Report Abuse Now they need to find a way to create an expensive solution for diesel users.
ExplodingGlass Champion Author Maine Posts:1,360 Points:767,495 Joined:Oct 2008	Message Posted: Jan 31, 2013 8:55:28 AM Ignore ExplodingGlass Report Abuse love the smell of gas
NoGas714 All-Star Author Indiana Posts:740 Points:751,150 Joined:May 2005	Message Posted: Jan 31, 2013 8:55:13 AM Ignore NoGas714 Report Abuse Yes, the war on Diesel must rage on. We can't have a much more efficient fuel out there that people can make in their garage. Gotta keep the slaves attached to the fuel pump that we control.
Mr Tex All-Star Author Dallas Posts:877 Points:2,493,785 Joined:Jan 2004	Message Posted: Jan 31, 2013 8:53:52 AM Ignore Mr Tex Report Abuse Another study to find out what we already know.
ssect8 Champion Author Hartford Posts:7,994 Points:2,094,270 Joined:Jun 2006	Message Posted: Jan 31, 2013 8:52:32 AM Ignore ssect8 Report Abuse Just more BS, I do not believe any environmental study or anything from our politicians.
ntimid8 Champion Author Nebraska Posts:1,208 Points:1,962,300 Joined:Apr 2004	Message Posted: Jan 31, 2013 8:52:29 AM Ignore ntimid8 Report Abuse Thats a no brainer
Langley94 Veteran Author British Columbia Posts:499 Points:822,990 Joined:Jul 2007	Message Posted: Jan 31, 2013 8:52:28 AM Ignore Langley94 Report Abuse No kidding!
bluetruck54 Champion Author Quad Cities Posts:1,471 Points:442,785 Joined:Apr 2010	Message Posted: Jan 31, 2013 8:52:22 AM Ignore bluetruck54 Report Abuse I'm sure we're all shocked by this news.
Soglaos Champion Author Virginia Beach Posts:2,771 Points:740,405 Joined:Feb 2011	Message Posted: Jan 31, 2013 8:51:47 AM Ignore Soglaos Report Abuse Wow that a Real Duh!
trombo31 All-Star Author Kentucky Posts:541 Points:269,305 Joined:May 2011	Message Posted: Jan 31, 2013 8:51:03 AM Ignore trombo31 Report Abuse duh
bell05 Champion Author Atlanta Posts:9,255 Points:1,876,610 Joined:Jun 2005	Message Posted: Jan 31, 2013 8:50:20 AM Ignore bell05 Report Abuse And who is surprised at this.
HoosierDaddyKY Champion Author Kentucky Posts:1,272 Points:297,160 Joined:Dec 2011	Message Posted: Jan 31, 2013 8:49:37 AM Ignore HoosierDaddyKY Report Abuse Very, very suspect!
beohbeNJ Champion Author New Jersey Posts:2,047 Points:534,430 Joined:Sep 2011	Message Posted: Jan 31, 2013 8:49:02 AM Ignore beohbeNJ Report Abuse Blah blah blah!
85XJ Champion Author Toledo Posts:5,604 Points:1,280,765 Joined:Mar 2005	Message Posted: Jan 31, 2013 8:48:47 AM Ignore 85XJ Report Abuse The did their testing in a tunnel. What happens in an open air situation?
dgarz01 All-Star Author Illinois Posts:674 Points:597,415 Joined:Mar 2011	Message Posted: Jan 31, 2013 8:48:21 AM Ignore dgarz01 Report Abuse So much for clean diesel
Costello Champion Author South Dakota Posts:1,411 Points:1,154,440 Joined:Jan 2007	Message Posted: Jan 31, 2013 8:48:04 AM Ignore Costello Report Abuse And the solution is???...
Rednix Champion Author Miami Posts:6,158 Points:1,275,735 Joined:Jul 2009	Message Posted: Jan 31, 2013 8:47:51 AM Ignore Rednix Report Abuse It took a new study to tell us that?
prius22 Champion Author Twin Cities Posts:2,214 Points:388,310 Joined:Apr 2012	Message Posted: Jan 31, 2013 8:47:35 AM Ignore prius22 Report Abuse Needed a study for that huh?
dlemma Champion Author Wyoming Posts:4,106 Points:1,555,020 Joined:Feb 2008	Message Posted: Jan 31, 2013 8:47:10 AM Ignore dlemma Report Abuse I take ANY environmental study done by ANY California college as highly suspect. Remember this is the greenie environmental center of hell.
tc17a Rookie Author South Carolina Posts:56 Points:359,595 Joined:Mar 2012	Message Posted: Jan 31, 2013 8:46:02 AM Ignore tc17a Report Abuse Some people will never change old school thinking is why we are falling behind the rest of the world. I'll keep my CLEAN DIESEL until it dies then I'll buy two more. It does not smell, its not slow and I get over 40 mpg. Win win..
angel4me Champion Author San Jose Posts:2,814 Points:795,295 Joined:Dec 2010	Message Posted: Jan 31, 2013 8:45:48 AM Ignore angel4me Report Abuse Isn't that why trucks are now required to add a catalytic converter which cost big bucks???
MopedTime All-Star Author Michigan Posts:767 Points:360,345 Joined:Mar 2012	Message Posted: Jan 31, 2013 8:45:31 AM Ignore MopedTime Report Abuse I could have told you that half a century ago.
speedraider Champion Author Orlando Posts:3,673 Points:1,644,895 Joined:Nov 2005	Message Posted: Jan 31, 2013 8:45:00 AM Ignore speedraider Report Abuse always has been
tomklo Champion Author Fort Worth Posts:2,447 Points:2,594,745 Joined:Jul 2002	Message Posted: Jan 31, 2013 8:43:02 AM Ignore tomklo Report Abuse it appears that we have far too many surveys and research
rwe930 Veteran Author Alabama Posts:319 Points:391,160 Joined:Aug 2011	Message Posted: Jan 31, 2013 8:42:57 AM Ignore rwe930 Report Abuse stinky
SUV2009 Champion Author Orlando Posts:4,413 Points:1,143,215 Joined:Oct 2009	Message Posted: Jan 31, 2013 8:41:55 AM Ignore SUV2009 Report Abuse Go figure two studies different results? Guess more Federal Funding for more studies.
BigKart All-Star Author Indianapolis Posts:771 Points:225,350 Joined:Apr 2011	Message Posted: Jan 31, 2013 8:41:37 AM Ignore BigKart Report Abuse Ya think? I hope that no animals were harmed during this study... especially the deep-thinking researchers who have obviously had their heads up someone's tailpipe too long. Next study: "Carbon Monoxide More Hazardous Than Originally Thought".
yanman22 All-Star Author Rochester Posts:601 Points:74,425 Joined:May 2011	Message Posted: Jan 31, 2013 8:41:31 AM Ignore yanman22 Report Abuse i wish i could get paid for stating the obvious
95Vette Champion Author Missouri Posts:2,525 Points:632,655 Joined:Sep 2005	Message Posted: Jan 31, 2013 8:41:20 AM Ignore 95Vette Report Abuse Duh... like that isn't a given.... it's always been that way... just follow a city bus that is diesel powered!
Alaydown Champion Author Los Angeles Posts:5,121 Points:823,620 Joined:May 2007	Message Posted: Jan 31, 2013 8:41:16 AM Ignore Alaydown Report Abuse Perhaps California would do better to crack down on out-of-state and Mexican registered cars instead of picking on diesel. Those of us who register our cars in this state must pass smog inspections every two years and pay outrageous fees while those who live in this state with Mexican and out-of-state plates get away without doing so. Even military drivers who are residents from other states are already forced to get smog checks. The state needs to crack down on these other freeloaders. [Edited by: Alaydown at 1/31/2013 8:49:05 AM EST]