Wednesday, May 18, 2005

Tubed Air

A story in The Times indicates that the air inside London’s subway system contains much fewer ultra-fine particulates than the air at street level. The tube system does have higher levels of iron particles, however. There is also more dust, but that dust contains lower levels of harmful particles.

That probably explains why my pollen allergies fare much better underground than aboveground.


Blogger graycie said...

So then, Matthew, when will you go caving with me?

1:24 AM  

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