On 22/06/2014 19:58, Mark Williams wrote:
Bret Cahill writes:

http://www.bloomberg.com/news/2014-0...ty-secret-poll
utes-like-beijing-airpocalyse.html


London's Dirty Secret: Pollution Worse Than Beijing's


London has a dirty secret.


Levels of the harmful air pollutant nitrogen dioxide at a city-center
monitoring station are the highest in Europe. Concentrations are
greater even than in Beijing, where expatriates have dubbed the
city's smog the "airpocalypse."


[...]

Time to face reality: London was designed for bicycles, not motor
vehicles.

To be fair, it was originally designed for Roman pedestrians or native
farm animals. Fortunately, bicycles generate much less pollution than
either of those.

However, the actual levels of air pollution in the city are much worse
than indicated by the monitoring stations. The council fiddle those
readings by regularly spraying a sticky substance on the roads in the
immediate vicinity so that some proportion of the pollutants do not
reach the sensors.

But you're not a conspiracy theorist or anything.