Evaluation of Annual Effective Dose Due to Ingestion in Some Commonly Consumed Vegetables in Lagos State, Nigeria

The activity concentrations of ^40k, ^238u and ^232th in some commonly consumed vegetables in badagry, ikorodu and ojo areas of lagos state were determined. the highest concentration of 40^k was obtained in celosia argentea (lagos spinach) with a value of 7807.51±402.48 bq/kg, the highest concentration of ^238u with a value of 59.46±6.46 bq/kg was found in amaranthus hybridus (african spinach) and the highest concentration of ^232th was found in amaranthus hybridus (african spinach) with a value of 47.45± 2.80 bq/kg. the highest concentrations were found in vegetables from ikorodu. the lowest concentration of 40k was found in hibiscus sabdariffa (roselle) with a value of 451.23±23.87 bq/kg. celosia argentea (lagos spinach) has the lowest concentration value of 0.79±0.10 bq/kg for 238u and a concentration value of 3.81± 0.22 bq/kg was found in vernonia amygdalina (bitter leaf) being the lowest concentration value of 232th. the mean annual effective doses of badagry, ikorodu and ojo were 1.42msv/y, 2.06msv/y and 2.23msv/y, respectively, which were higher than the world mean average of 0.294msv/y.