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A comment on Sugar industry withheld possible evidence of cancer link 50 years ago. Parent comment

Re:Sugar industry withheld possible evidence of cancer link ... by kaybe on Wednesday November 22, 2017 @09:11PM (#15762285)
Funfact: The highest concentration of NO2 is not found around pedestrians but inside the cars. Most models don't have suitable filter in the standard issue outside of Europe and Japan (and there only the higher-class private ones).
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Re:Sugar industry withheld possible evidence of cancer link ... by copperx on Wednesday November 22, 2017 @10:13PM (#15762467)
Are we talking about the cabin air filter? and do you know of any 3rd party suitable replacements?
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Re:Sugar industry withheld possible evidence of cancer link ... by copperx on Thursday November 23, 2017 @12:34AM (#15763023)
Post append: According to [1], a simple activated charcoal cabin air filter is better than the stock one in removing diesel exhaust particles.

[1]: https://www.ncbi.nlm.nih.gov/pubmed/24621126

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Re:Sugar industry withheld possible evidence of cancer link ... by kaybe on Thursday November 23, 2017 @09:24AM (#15765225)
Thanks, I didn't know this paper. We just measure the NO2.

edit: Seriously, how did they get that through the ethics committee.. I'm astonished and a little bit appalled. There is a second study too.

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Re:Sugar industry withheld possible evidence of cancer link ... by kaybe on Thursday November 23, 2017 @09:22AM (#15765215)
Yes, the issue is the cabin air filter. The simple paper pollen filters don't do anything against NO2 - we measure the same values inside and outside.

Most filters with active charcoal will reduce the NO2 concentration a lot. It is recommended to replace them after 1-2 years or a certain distance, but we don't have numbers on this - still, it is clear the filters degrade after a while.

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Re:Sugar industry withheld possible evidence of cancer link ... by megy on Wednesday November 22, 2017 @09:36PM (#15762359)
Good, exactly where it should be highest.
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Re:Sugar industry withheld possible evidence of cancer link ... by kaybe on Thursday November 23, 2017 @09:25AM (#15765239)
Sometimes I can't help but think so too, but many people are not on the road by choice. Many commercial vehicles don't have filters.
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