Contamination with Cadmium and Arsenic in soils and vegetables of a sector of the Bogota River Basin

Soils of six different horticultural sites of the Savanna of Bogota (Cundinamarca) traditionally watered with the highly polluted waters of the Bogota River, were sampled to quantify Cd and As accumulated with irrigation. Soil of site six representatives of Rio Bogota series (fine clay, mixed, isothermic family of Fluventic tropaquepts) was selected for greenhouse experiments directed to show: a) Actual content of Cd and As in one of the most representative horticultural soil sites of the plain savanna. b) The accumulation level of Cd and As in the edible parts of three different vegetables (lettuce, cucumber and carrots) watered with polluted waters with know and variable Cd and As concentrations. c) The effects of Cd and As on vegetable's yields