But urea injection was first developed in the EU - low sulfur/sulphur diesel fuel as well. That Business Week article is so full of holes, it's swiss cheese. First off, it isn't NO2 specifically that is the problem, but a variety of nitrogen oxides, and the way anybody in science rights that is NOx. Then there's the bafflegab about different NOx standards for diesel powered cars - which isn't so, EU standards for car emissions are fuel-neutral. And, having travelled in London, it's not the diesel cars that are the problem, it's the trucks/lorries. Overall, I'd have to say another 'puff piece' by Business Week for the North American gasoline industry! James Ottawa, ON
> Date: Fri, 20 Jun 2014 10:41:01 -0700 > From: stuartmacm@GMAIL.COM > Subject: Friday NVC: European Union switch to diesel not working so well > To: vanagon@GERRY.VANAGON.COM > > The EU didn't think this through and simply switched pollutants from CO2 to > NOx and particulates: > http://www.businessweek.com/articles/2014-06-05/london-leads-eu-in-car-pollu > tion-diesel-fuel-blamed It's going to take a long time to replace their > diesel fleet with clean diesel vehicles. > > > > In the US since 2007 we've been doing better with low sulfur diesel fuel, > clean engine design, particulate filters and post-treatment like urea > injection: http://www.epa.gov/otaq/technology/420f04023.pdf But even with > this it will take until 2030 to see the full benefits. > > > > We are much better off having minimum clean air standards and a mix of gas, > diesel and electric cars we can choose from. > > > > Just so they don't start going after old cars . . . > > > > Stuart |
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