Objective PR.3 Increase accessibility, beauty, safety, and cleanliness of public spaces

1. Pacific Southwest Research Station's Center for Urban Forest Research: Accessed at: http://www.fs.fed.us/psw/programs/cufr/research/benefit.shtml and SF Urban Forest Council 2005 Annual Report. Accessed at: http://www.sfenvironment.org/our_policies/overview.html?ssi=16#Reports
2. Grant R, Heisler G, Gao W. Estimation of Pedestrian Level UV exposure under trees. Photochemistry and Photobiology. 2002;75(4):369-376.
3. Kuo FE, Sullivan WC. Environment and crime in the inner city: does vegetation reduce crime? Environment and Behavior. 2001;33(3):343-367.
4. Taylor AF, Kuo FE, Sullivan WC. Coping With ADD: The Surprising Connection to Green Play Settings. Environment and Behavior. 2001;33(1):54-77.
5. Holick MF. Sunlight and vitamin D for bone health and prevention of autoimmune diseases, cancers, and cardiovascular disease. Am J Clin Nutr. 2004;80(6 Suppl):1678S-88S.
6. Lips P. Vitamin D physiology. Prog Biophys Mol Biol. 2006;92(1):4-8.