Continuous exposure to air polluted with the vapor of lead (in leaded gasoline) by the workers in petroleum stations without following safety measures, results into elevated level of inorganic lead in blood of those workers and put them at increased risk of toxicity through exposure to lead and its products. The aim of the present study is to measure concentration of lead in blood of fuel station workers through lead care of blood testing system and lead care of blood testing kits, using Atomic Absorption Spectrophotometry(AAS) for confirmation and checking quality of measuring and repeat measuring of lead concentration in blood of workers with blood lead conc.> 50 μg/dl after certain interventions, Such as giving vit, D, lead chelating agents(Succimer) and certain safety precautions(mask, gloves, boot, cap, special clothes and regular skin cleaning and well balanced calcium enriched food ) to know their effectiveness in control and regulation of blood lead level. This study took two approaches: a case-control approach in which 76 Petroleum station workers and age-matched control participants were included, and an experimental approach in which the effect of various types of lead decreasing agents was investigated after giving medications and taking certain precautions by workers. From the current study it was concluded that following safety measures , receiving succimer , and vit, D supplementation helped in decreasing elevated blood level in fuel station workers.