The experiment particles indoor and outdoor were monitored for several days in summer 1999 in bedroom 1 of Steve Chillruds apartment. He lives on the 5th floor of 720 W 181 th St in Washington Heights. Exchange with the outside occurs through the windows or possibly the doors.
R is the fraction of indoor PM that is being deposited per unit time.
We are basically calculating C in at the end of the time step D t from C in at the beginning of the time step. In the lab, we will use this equation to calculate C in as a function of time and compare it to the measured data to find out if our model does describe the experiment reasonably well.