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    Courtesy of Dara Salcedo

From: Dara Salcedo
T0, March 4, 2006

T0

This is a picture of the site where I am going to be measuring particles (I am in the room on the top of the building). We call it T0 because it is inside of the city and we can consider that the pollutants start their journey there, at "time zero". The pollutants are carried away from the city by the wind and after some time ("time 1") they will reach a second measuring site called T1. There is a third site even farther away called T2. By measuring pollutants at the three sites, we will be able to see how pollutants are transformed as they move way from the city.

Unfortunately, our instruments are not here yet. They are taking longer than expected to cross the US-Mexico border. Hopefully, they are going to be here tomorrow and we will be able to start measuring soon.

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