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BMW Diesel Owners / Enthusiasts
Do you own a diesel powered BMW? Maybe a 335d or a BMW x35d? Come and talk about what makes your car great!

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  #1  
Old 06-13-2012, 11:12 AM
magungo magungo is offline
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Diesel Engine Exhaust Causes Lung Cancer, WHO Agency Says

http://www.bloomberg.com/news/2012-0...ency-says.html

Quote:
Exhaust from diesel engines causes lung cancer, a World Health Organization agency said for the first time, citing a review of studies.

Diesel exhaust also was linked to an increased risk of bladder cancer, the International Agency for Research on Cancer, based in Lyon, France, said in a statement today. The group published the findings after a review over eight days by a panel of scientists. An earlier review, in 1988, classified diesel engine exhaust as “probably carcinogenic.”

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Diesel Engine Exhaust Causes Lung Cancer, WHO Agency Says
Truck fumes in Central Asia. Photograph: Universal Images Group via Getty Images

Truck fumes in Central Asia. Photograph: Universal Images Group via Getty Images
.The agency isn’t providing guidelines on what level of exposure is carcinogenic, leaving it up to national and international regulatory authorities to weigh its conclusion, Christopher Wild, director of the agency, told reporters today on a conference call.

“The scientific evidence was compelling and the working group’s conclusion was unanimous: Diesel engine exhaust causes lung cancer in humans,” Christopher Portier, chairman of the IARC working group, said in the statement. “Given the additional health impacts from diesel particulates, exposure to this mixture of chemicals should be reduced worldwide.‘‘

The review of older studies may not take into account advances in diesel technology over the last decade, Steve Hansen, a spokesman for the Diesel Technology Forum in Washington, said in an e-mailed statement. The group represents global diesel engine manufacturers, automakers and oil refiners. Members include Deere & Co. (DE), Ford Motor Co. (F) and BP Plc. (BP/)

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Nitrogen oxide emissions from heavy-duty trucks and buses have been reduced by 99 percent and particulate emissions by 98 percent over the last 10 years, Hansen said.

While the amount of particulates and chemicals are reduced with these changes, it is not yet clear how they may translate into health effects, the IARC said. ‘‘Research into this question is needed.’’

Existing vehicles without these modifications will take many years to be replaced, particularly in less-developed countries where regulatory measures aren’t as stringent, the IARC said.

Gasoline engine fumes are ‘‘possibly carcinogenic,’’ the agency said, reiterating its 1988 finding.

Cancer killed 7.6 million people worldwide, the leading cause of death globally in 2008, the most recent year available, the WHO said. Lung cancer was the most lethal type, accounted for 18 percent of all cancer deaths, the agency said.

The IARC had been planning since 1998 to re-evaluate the cancer-causing potential of diesel fumes. The concern was re- emphasized by the publication in March of results from a U.S. National Cancer Institute study that found exposure to diesel fumes increased risk of death from lung cancer in miners, the agency said.

By classifying cancer risks, the IARC provides scientific advice to governments. The agency lists substances as carcinogenic, probably carcinogenic, possibly carcinogenic, not classifiable and probably not carcinogenic.
Hopefully the public realizes this doesn't apply to newer vehicles and manufacturers won't change their release plans.
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  #2  
Old 06-13-2012, 12:40 PM
listerone listerone is offline
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Having done a fair amount of traveling in Third World countries (Asia,Africa *and* South America) it's not difficult for me to see why diesel exhaust fumes *there* just might be harmful.Talk about huge,billowing clouds of jet black smoke! From every single truck and bus you see! But the days of such fumes being seen here are *long* since passed.
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  #3  
Old 06-13-2012, 01:16 PM
boooomer boooomer is offline
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Per the NYT article this morning, the WHO study was based on miners working in enclosed conditions, (probably without adequate ventilation) in third world countries where environmental controls are non existent using old diesel engines. Similar to the Bloomburg report - the NYT reports that since 2000, the US has adopted low (& ultra low) sulfur diesel fuel which - along with modern engine technology effectively removes the risk of carcinogens.

Unfortunately that information was buried deep within the article. And most folks will only see the headline "Diesel Exhaust Causes Cancer!"
UGH!
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  #4  
Old 06-13-2012, 03:03 PM
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rmorin49 rmorin49 is online now
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I have a doctorate in public health, have spent almost 40 years working in the field of environmental health and currently work at the National Cancer Institute so I was not at all surprised when these study result were released. It has been known for years that most products of combustion can cause cancer. Can you say tobacco smoking? The byproducts of combustion of diesel fuel are similar to the products of combustion of gasoline and most other petroleum products. Previous posters are correct. This study was conducted 50-60 years ago in mines. The data has very little correlation to the emissions from modern clean diesels. That said, my wife had the following comment when she heard about it on the nightly news. Well, there goes the value of your BMW diesel. Unfortunately, this is not an uncommon reaction to the release of these type of studies. The average person only hears the headlines and bases their conclusion on very limited information. It is a shame, sad but true. My 335d is still a wonderful car, great commuter vehicle and a joy to drive every day.
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  #5  
Old 06-13-2012, 05:50 PM
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I never ever seen my car smoke. I think I'm fine. There are many more diesels in my future.
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  #6  
Old 06-25-2012, 11:28 PM
starrfyr starrfyr is offline
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Soot cancer and CARB

It is well known that the by-products of diesel #2 and gasoline combustion contain carcinogenic materials. This is the primary justification used by the CARB to prohibit CAR sales in CA. Diesel powered trucks selling maybe 20-1 but mostly made in Detroit were still sold.

All ICE's whether SI and fuelled with light hydrocarbs (gasoline, ethanol, methanol, etc.) or CI and 'burning' fuel oils produce NOx and CxHy compounds This isn't news for SI engines and is what the whole 'smog emmissions' requirements are designed to eliminate. What wasn't/isn't common knowledge is that CI engines burning fuel oil produce the same NOx and CxHy compounds (in different ratios; more NOx and less CxHy) but also C6, a major component of soot and a carcinogenic agent.

So, CARB, citing C6 as cancer causing banned diesel car sales. But, with the development of the DPF, I guess the WHO and CARB can STFU.
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  #7  
Old 06-26-2012, 03:07 AM
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Quote:
Originally Posted by boooomer View Post
Per the NYT article this morning, the WHO study was based on miners working in enclosed conditions, (probably without adequate ventilation) in third world countries where environmental controls are non existent using old diesel engines. Similar to the Bloomburg report - the NYT reports that since 2000, the US has adopted low (& ultra low) sulfur diesel fuel which - along with modern engine technology effectively removes the risk of carcinogens.

Unfortunately that information was buried deep within the article. And most folks will only see the headline "Diesel Exhaust Causes Cancer!"
UGH!
And they forgot to adjust their sampling for those miners that smoked more than two packs of cigarettes a day, which was 99.9% of them.
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  #8  
Old 06-26-2012, 07:11 AM
bigjack bigjack is offline
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Never forget the NYT always has an agenda. Always.
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  #9  
Old 06-26-2012, 07:43 AM
boooomer boooomer is offline
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Quote:
Originally Posted by bigjack View Post
Never forget the NYT always has an agenda. Always.
All news media have agendas.
This WHO report has been reported in several media outlets in a similar fashion.

My take away from this confirms what i suspected, black stuff coming from stacks, exhaust pipes or cigarettes, or whatever, is bad sh!t.

Unfortunately I still see big rigs on the highway spewing out "black". It's good to know that those older engines are being phased out.

What we really need to see are more articles confirming that the clean diesel technology utilizing EGR, DPF & DEF etc. combined with Ultra Low Sulphur fuel is working. Especially now since we will be seeing a lot more diesels coming from Europe, Japan and the US relying on that technology.
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  #10  
Old 07-05-2012, 11:07 PM
chetah45 chetah45 is offline
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The way I remember it, CARB did not ban the sales of diesel automobiles in the great state of Kalifornia, they just lowered the emission standards to the point that diesel automobiles could not meet the standards until VW, Mercedes and BMW introduced their clean burn vehicles around 2009. Until just recently, there were no smog tests required(Diesels were exempt from smog checks/tests) for diesel powered automobiles or pickups and the current smog test is just a visual on equipment and snap idle with no sniffing required.
During the time that diesel automobiles sales were quashed by the smog standards that prevented their sales here, a private individual could purchase and import a diesel automobile into California as long as it had more than 7500 miles on odometer and no smog check required and no CARB cert necessary.

Last edited by chetah45; 07-05-2012 at 11:21 PM.
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