Greyest xmas
With an API of 280 on 25 December, and 269 on 26 December, i wish we would have left on holiday a bit earlier. This is really horrible, the 2 worst days of the year, except for 5 January which had 322. On a really good day, we can see the China World III tower and the new CCTV tower (first image, 28 Oct 2007, API=27, 5th best day of the year), but this last week it has been like the second picture, one grey mass, not even enough light to take a sharp picture (26 Dec 2007, API=269, 3rd worst day of the year).
If i am not mistaken, we stand at 244 ‘clear/blue sky days’ at the moment, and it does not look like we’ll be able to add one more this year to get to the target of 245. This count does not include 20 August because there is no data on the SEPA website for this day, it was the last day of the 4-day experiment with car restrictions, and somehow the measurement for 20 August seems to have been lost.

