Air Research Links

Philadelphia Air pollution
http://www.phila.gov/aqi/

http://blogs.phillymag.com/bewellphilly/2012/04/25/tenth-polluted-city/

http://airnow.gov/index.cfm?action=airnow.local_city&cityid=163

http://articles.philly.com/2013-04-26/news/38819770_1_particle-pollution-air-pollution-american-lung-association

http://www.weatherexplained.com/Vol-1/Air-and-Water-Pollution.html

http://www.pacode.com/secure/data/025/chapter123/chap123toc.html

Philadelphia Public transit and bike routes

http://www.transalt.org/files/resources/maps/pa/philadelphia.pdf

http://www.bicyclecoalition.org/resources/stats

http://www.phila.gov/motu/initiatives-transportation.html

http://www.septa.org/sustain/blog/2011/02-25.html