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Diesel exhaust is carcinogenic (causes cancer) [2012] https://en.wikipedia.org/wiki/List_of_IARC_Group_1_carcinogens#Mixtures https://en.wikipedia.org/wiki/List

Diesel exhaust is carcinogenic (causes cancer) [2012] https://en.wikipedia.org/wiki/List_of_IARC_Group_1_carcinogens#Mixtures https://en.wikipedia.org/wiki/List_of_IARC_Group_1_carcinoge... "IARC: DIESEL ENGINE EXHAUST CARCINOGENIC" [PDF] https://www.iarc.fr/en/media-centre/pr/2012/pdfs/pr213_E.pdf https://www.iarc.fr/en/media-centre/pr/2012/pdfs/pr213_E.pdf ... Soybeans are also useful for bioplastics.

jandrese 9y ago
That's for dinosaur diesel. Biodiesel would have a different set of combustion byproducts. Probably still carcinogenic though, at least in the state of California. High combustion temps tend to do that.
- MisterTea 9y ago
  It's not so much what comes out chemically but what comes out physically. And happens to be particulate matter meaning partly combusted hydrocarbons in the form of soot. The soot is an inhalation hazard and has been linked to asthma and lung cancer.
  - zentiggr 9y ago
    Do I remember correctly that fully burned pure diesel yields water and CO2? Soot is usually partially burned fuel plus a percentage of contaminants?
    - jandrese 9y ago
      That can't be right because where would the sulfur go? Not to mention all of the other junk in there.
      - zentiggr 9y ago
        Per wikipedia, pure diesel is moderate size hydrocarbon chains. Everything else is impurities... so burning pure diesel in a 100% oxygen environment would yield water and COn gases. Of course, the rest of the world introduces different combustion products, including sulfur as part of the fuel oil fractions not completely distilled away.
vvanders 9y ago
Hard to tell from the PDF if that's Tier IV or traditional Diesel exhaust. I can tell you inhaling anything from our pre-DPF '81 tractor isn't something you want to do but I'd be curious to know how much modern DPF(Diesel particulate filters) make a difference.
- fenwick67 9y ago
  Tier IV reduces NOX and particulates quite a bit... but they are still definitely there.

jandrese 9y ago

That's for dinosaur diesel. Biodiesel would have a different set of combustion byproducts. Probably still carcinogenic though, at least in the state of California. High combustion temps tend to do that.

MisterTea 9y ago
It's not so much what comes out chemically but what comes out physically. And happens to be particulate matter meaning partly combusted hydrocarbons in the form of soot. The soot is an inhalation hazard and has been linked to asthma and lung cancer.
- zentiggr 9y ago
  Do I remember correctly that fully burned pure diesel yields water and CO2? Soot is usually partially burned fuel plus a percentage of contaminants?
  - jandrese 9y ago
    That can't be right because where would the sulfur go? Not to mention all of the other junk in there.
    - zentiggr 9y ago
      Per wikipedia, pure diesel is moderate size hydrocarbon chains. Everything else is impurities... so burning pure diesel in a 100% oxygen environment would yield water and COn gases. Of course, the rest of the world introduces different combustion products, including sulfur as part of the fuel oil fractions not completely distilled away.

vvanders 9y ago

Hard to tell from the PDF if that's Tier IV or traditional Diesel exhaust. I can tell you inhaling anything from our pre-DPF '81 tractor isn't something you want to do but I'd be curious to know how much modern DPF(Diesel particulate filters) make a difference.

fenwick67 9y ago
Tier IV reduces NOX and particulates quite a bit... but they are still definitely there.