I fell off the chair laughing, when I read the following in an article in the NYTimes.
“It’s different than what I remember from last year, in that the pollution looked more yellow and dark,” Shoemaker said. “It’s whiter this year. I think it’s a combination of a different time of year and little bit more mist and humidity in the air. So it doesn’t look as bad, but you can still kind of taste it.”
Read the full article here.
On a more serious note, I think the colour of the pollution is white/grey like everywhere.
(image courtesy: wikimedia.org)