There is detailed discussions about SOx/NOx further down this thread. News articles are easily found as well: https://www.theguardian.com/environment/2017/may

There is detailed discussions about SOx/NOx further down this thread. News articles are easily found as well: https://www.theguardian.com/environment/2017/may/15/diesel-emissions-test-scandal-causes-38000-early-deaths-year-study https://www.theguardian.com/environment/2017/may/15/diesel-e... http://erj.ersjournals.com/content/17/4/733 http://erj.ersjournals.com/content/17/4/733 https://www.theguardian.com/uk/2013/jan/27/diesel-engine-fumes-worse-petrol https://www.theguardian.com/uk/2013/jan/27/diesel-engine-fum... etc etc Diesel is significantly worse for human health than gasoline.