Wilcke, W, Krauss, M & Amelung, W 2002,‘Carbon Isotope Signature of Polycyclic Aromatic Hydrocarbons (PAHs): Evidence for Different Sources in Tropical and Temperate Environments?’, Environmental Science and Technology, Vol. 36, pp. 3530-3535. Wild S & Jones, K 1995, ‘Polynuclear Aromatic Hydrocarbons in the United Kingdom Environment: A Preliminary Source Inventory and Budget’, Environmental Contamination 88, pp. 91-108. Wong, F, Harner, T, Liu, Q & Diamond, M 2004, ‘Using Experimental and Forest Soils to Investigate the Uptake of Polycyclic Aromatic Hydrocarbons (PAHs) along an Urban-Rural Gradient’, Environmental Pollution, Vol. 129, pp. 387-398. Yamamoto, SS 2005, A Screening-Level Risk Assessment of Exposure to Selected PAHs among Children in Kampala, Uganda. MSc. Thesis, University of Toronto.
CHAPTER V I I I
150
HEALTHY CITY HARVESTS: GENERATING EVIDENCE TO GUIDE POLICY ON URBAN AGRICULTURE