The World Health Org says that diesel exhaust causes cancer. http://www.cancer.org/cancer/news/world-health-organization-says-diesel-exhaust-causes-cancer And, RTD diesel buses make over 1400 trips a day in Boulder! PLEASE, today, write a check for $100 payable to "Quality Environmental Services" and mail it to Preston Padden @ 1301 Canyon Bovd #306, Boulder, CO 80302. We met today with Dr. Joe Boatman of Quality Environmental Services, Dr. Shelly Miller of CU and Joesu Pedrosa - a graduate student who is helping us and writing his Masters Thesis on the issue of Boulder's diesel buses. Assuming that we get enough volunteer funding help, the air quality study include both fixed and mobile monitoring and will take place in June and July.