weepej wrote:
Steve wrote:
That is from the days when there were real dangers.
What it is, 3,000 people in London die early each year due to poor air quality?
http://news.bbc.co.uk/1/hi/uk/8578952.stmWhat do you classify as a real danger?
Mmmmm! Pass me another of those delicious cherries you've just picked....!
"..Particulate matter is
estimated to reduce people's lives by an
average seven to eight months, while in pollution hotspots
vulnerable residents, such as those with asthma,
could be dying
up to nine years early, the report says...."
So the "hidden killer" so evocatively referred to, is more of a "hidden-reduction-in-life-expectancy-and-even-then-only-for-people-with-an-underlying-condition-anyway", really.

And, of course, as has been said, it's very easy to blame the "evil, stinking, child-slaughtering, engine-of-satan" that is the motor car for this (and every other thing that ever went wrong) in the whole world, ever - without actually having to put a number on it!
As you acknowledged earlier, the problem is being addressed - the Euro V emissions requirements are currently being rolled out (including for buses and heavy goods vehicles). They will all need particulate filters, and then there wil lbe one less thing that can be conveniently blamed on "the motor car". (Although I'm sure those who would like to see it banned, but can't actually come up with a workable alternative, will still find something to whinge about)!