Since we have such a good view of `THE' landmark of Shanghai, the Oriental Pearl Tower, and we often see it in different ways due to the air pollution, I thought that I would introduce an air pollution index without the meaningless numbers.
Reading the API stats (Air Pollution) is about as useful to the average person in Shanghai as driving a Ferrari, but understanding how the air quality is on a particular day is all based on visibility and dust. So from here, everyday I will be posting the Oriental Pearl Tower Visibility Index. It will describe in everyday terminology how good or bad the air quality is based on how well we can see the Oriental Pearl Tower from our window. All the photos that are posted with it are taken on a Pentax Optio S5i and will be taken about the same time (9am each morning) and will be taken roughly at the same spot with a very wide field of view.
There are currently 5 categories of rating running from perfectly clear down to zero visibility. They are:
- Crystal - I can even count the tiles on the balls!
- Colours - I can see the pink in colour in the balls.
- Building - I can make out the whole tower, but its not too clear.
- Silhouette - I can make out the silhouette or the outline of the tower but nothing is clear.
- What Tower - I can't see a freakin thing!
As a bench mark, below are some photos of the ratings `Colours' and `What Tower' so you can get an idea of how they are quite different.
I hope that this will serve as an easier way to get a clear picture (pardon the pun) on what the air pollution is really like - and if you are a real numbers geek here is how they calculate the official API.
These 2 are from the rating `What Tower'
Click on images to see full size.
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