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An issue with dieselcars is that they emit small particles PM2.5 particles which is very damaging to human health. "A typical diesel car emits around 10

by acd 9y ago

An issue with dieselcars is that they emit small particles PM2.5 particles which is very damaging to human health. "A typical diesel car emits around 10 times more nitrogen oxides than an equivalent gasoline car." "Fivefacts about diesel the car industry would rathernot tell you" https://www.transportenvironment.org/sites/te/files/publications/2015_09_Five_facts_about_diesel_FINAL.pdf https://www.transportenvironment.org/sites/te/files/publicat... PM 2.5 particles which is small particles emitted by diesel vehicles are a cause for preterm births in babies. " We estimate 2.7–3.4 million preterm births may be associated with PM2.5 exposure in 2010 globally." http://www.sciencedirect.com/science/article/pii/S0160412016305992 http://www.sciencedirect.com/science/article/pii/S0160412016... "Health experts lambast ‘deceitful’ carmakers as data suggests 97% of vehicles fail to meet NOx emissions standards in real-world conditions". https://www.theguardian.com/business/2016/apr/23/diesel-cars-pollution-limits-nox-emissions https://www.theguardian.com/business/2016/apr/23/diesel-cars...

acchow 9y ago
Does this also happen in Bluetec engines?
- cptskippy 9y ago
  Yes, BlueTEC is just Mercedes' name for the DEF system that treats the exhaust. There's nothing special about the engine itself, the exhaust is just treated. BlueTEC is just a marketing term like SSRS ( airbag ).
- jakelarkin 9y ago
  not as much ... Bluetec is just an advanced catalytic converter, that reduces NOx. Mercedes has been implicated in the emissions scandals, afaik. Inherently diesel is less refined than gas, so it does not burn as clean.
frik 9y ago
I read older diesel engines emitted bigger particles, so larger that they were filtered by your nose. With the newer EURO5/6 norm the diesel engines got a lot more unhealthy (PM2.5).
CydeWeys 9y ago
And Volvo just announced it's stopping work on diesel engines and throwing themselves full-force at electric engines. Diesel is just a means to an end. If it's a fundamentally unsafe technology, then it should go into the dustbin of history, alongside leaded gasoline, lead paint, and asbestos for non-critical purposes. There are other ways to get around; no one needs diesel qua diesel.

by acd 9y ago

acchow 9y ago

Does this also happen in Bluetec engines?

cptskippy 9y ago
Yes, BlueTEC is just Mercedes' name for the DEF system that treats the exhaust. There's nothing special about the engine itself, the exhaust is just treated. BlueTEC is just a marketing term like SSRS ( airbag ).
jakelarkin 9y ago
not as much ... Bluetec is just an advanced catalytic converter, that reduces NOx. Mercedes has been implicated in the emissions scandals, afaik. Inherently diesel is less refined than gas, so it does not burn as clean.

frik 9y ago

I read older diesel engines emitted bigger particles, so larger that they were filtered by your nose. With the newer EURO5/6 norm the diesel engines got a lot more unhealthy (PM2.5).

CydeWeys 9y ago

And Volvo just announced it's stopping work on diesel engines and throwing themselves full-force at electric engines. Diesel is just a means to an end. If it's a fundamentally unsafe technology, then it should go into the dustbin of history, alongside leaded gasoline, lead paint, and asbestos for non-critical purposes. There are other ways to get around; no one needs diesel qua diesel.