تقدير تركيز بعض العناصر الثقيلة في العينات الحيوية لعمال محطات الوقود بمنطقة الرياض

الملخص EN

The heavy metals exist in large quantity in nature.

Such metals originate from the geochemical cycles and spread inside the environment.

The high concentrations of these heavy metals in the aquatic environment endanger the living organisms.

These dangers threatening the living organisms are resulting from the ability of the living organisms to accumulate such heavy metals by large amounts inside their bodies.

The high concentrations of such metals cause disorders to their biological functions.

Also, the heavy metals can transfer via food chains to human being.

This causes harmful effects on his health.

The present research seeks to measure the concentrations of lead, cadmium and chromium in blood, urine and saliva samples.

These samples are taken from fuel station workers.

Moreover, the research discusses the relationship between the concentrations of such heavy metals and the working period inside the fuel stations.

It compares the sample concentrations of such workers with blood, urine and saliva samples taken from other people living away from the pollution areas.

The study performs analysis on twenty five governing samples (men) and thirty four samples taken from fuel station workers (men) at different stations in Riyadh region.

Further, an experimental approach is employed for measuring the concentrations of lead, cadmium and chromium in urine, blood and saliva samples.

The research presents some findings.

Among such findings, the most important reveal that there are high concentrations of lead, cadmium and chromium in the governing biological samples (blood, urine and saliva) taken from the workers of fuel stations in Riyadh.

These concentrations are associated with the period of exposure to the heavy metals.