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Diesel: less CO2, but more air pollution

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  • Diesel: less CO2, but more air pollution

    Part of the externalised costs of internal combustion vehicles is unfortunately the very concentrated air pollution they produce.


    Levels of the harmful air pollutant nitrogen dioxide at a [London] city-centre monitoring station are the highest in Europe. Concentrations are even greater than in Beijing, where expatriates have dubbed the Chinese city’s smog the “airpocalypse”.

    It is the law of unintended consequences at work. Efforts by the European Union to fight climate change favoured diesel fuel over petrol because it emits less carbon dioxide.
    “Successive governments knew more than 10 years ago that diesel was producing all these harmful pollutants, but they myopically ploughed on with their carbon dioxide agenda,”

    Tiny particles called PM2.5 probably killed 3,389 people in London in 2010, the government agency Public Health England said last month. Like nitrogen dioxide, they come from diesel combustion. Because the pollutants are found together, it is hard to identify deaths attributable only to nitrogen dioxide, said experts.

    London is not alone in having bad air in Europe, where 301 sites breached the EU’s nitrogen dioxide limits in 2012, including seven in the British capital. Paris, Rome, Athens, Madrid, Brussels and Berlin also had places that exceeded the ceiling. The second- and third-worst sites among 1,513 monitoring stations were both in Stuttgart, after London’s Marylebone Road.
    http://www.todayonline.com/world/eur...highest-europe

  • #2
    Re: Diesel: less CO2, but more air pollution

    Clean Diesel is being worked on:

    http://www.epa.gov/diesel/

    http://www.clean-diesel.org/

    http://auto.howstuffworks.com/fuel-e...fuel-works.htm

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    • #3
      Re: Diesel: less CO2, but more air pollution

      USA diesel emissions regulations exceed those in Europe. That is why a large number of high efficiency European diesel vehicles are not available in North America...they can't meet the emissions tests.

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      • #4
        Re: Diesel: less CO2, but more air pollution

        We used 3/4 and 1-ton Ford pickups. When they were lit off in the morning was it the diesel particulates we saw floating in the air?

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        • #5
          Re: Diesel: less CO2, but more air pollution

          Originally posted by don View Post
          We used 3/4 and 1-ton Ford pickups. When they were lit off in the morning was it the diesel particulates we saw floating in the air?
          most likely - evidence of this would be the soot on my veedubs and peugeots that used to collect just above the tailpipe on the bumpers from idling and not washin em...

          never mind on the transoms of not-quite-tuned sportfishers...

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          • #6
            Re: Diesel: less CO2, but more air pollution

            Originally posted by lektrode View Post
            most likely - evidence of this would be the soot on my veedubs and peugeots that used to collect just above the tailpipe on the bumpers from idling and not washin em...

            never mind on the transoms of not-quite-tuned sportfishers...
            I told the guys just to breath out.

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            • #7
              Re: Diesel: less CO2, but more air pollution

              Originally posted by don View Post
              We used 3/4 and 1-ton Ford pickups. When they were lit off in the morning was it the diesel particulates we saw floating in the air?
              Most likely the early morning coastal fog in Cali

              The USA vehicle regulations (crash resistance, emissions, etc) have numerous exemptions for trucks and vans over a certain GVW vs passenger vehicles (quelle surprise, eh). Has been that way for decades, as you probably already knew don.

              The point in my post above stands...with a little addendum:

              "USA diesel emissions regulations, for light passenger cars, exceed those in Europe. That is why a large number of high efficiency European diesel vehicles are not available in North America...they can't meet the emissions tests."

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              • #8
                Re: Diesel: less CO2, but more air pollution

                There was no annual smog check for the trucks . . . ;-)

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                • #9
                  Re: Diesel: less CO2, but more air pollution

                  also noted that #2 was cheaper in socal than 87oct was back in april?? (drove up from SanD to mammoth, tahoe)
                  thats a switch... usually the other way round, at least in the recent past (and was the reason i gave up on diesels, since the benefit of incr in MPG evaporated as the price diff tween #2 and 87 switched sides...)

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                  • #10
                    Re: Diesel: less CO2, but more air pollution

                    I stayed with the commercial diesels because they were such workhorses. Each truck had tool boxes. ladder racks, pipe racks, etc. and never seemed to feel the load. The switch from diesel being the cheaper fuel to the most expensive was a blow i can still feel . . . ouch!

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