Temporal relationships between heavy-metal concentrations in water and food crops at a Zambian urban agriculture site.

(1) Geography, King’s College London, United Kingdom (jennifer.holden@kcl.ac.uk, bruce.malamud@kcl.ac.uk), (2) Soil Science, University of Zambia (bhchishala@yahoo.com, jvolk2004@yahoo.com), (3) Department of Geography, University of Zambia, Lusaka, Zambia (ekapungwe2004@yahoo.com), (4) Department of Geology, Colgate University, Department of Geology, Colgate University, Hamilton, New York, USA (kharpp@mail.colgate.edu)