DETERMINATION OF SOME HEAVY METALS IN WATER, OIL AND BLOOD SAMPLES OF WORKERS AT A QUARRY SITE IN KANO

Description

Determination of heavy metals in soil, water and blood samples of workers at a quarry site in Kano. In this study, some heavy metals in water, soil and blood samples of workers at a quarry site in Kano were determined. Five milliliters of venous blood were collected from eleven Quarry workers of Gerawa Quarry site Kano using separate and disposable plastic syringes. Blood samples obtained were transferred into EDTA sample bottles and were taken to the laboratory. This was done with the assistance of laboratory technicians in order to comply with ethics of blood sample collection procedure. Five (5) liters of each water samples (borehole water and pond water) were collected from the two water sources in the Gerawa quarry site using separate clean plastic containers. The soil samples were collected from top soil at the depth of 15 cm using soil auger, leaves, roots and stones were removed manually to eliminate dirt. At site for sampling, five sub-sites were sampled for random sampling and five soil samples were collected randomly from each of the five sub-sites and pooled together to obtain a composite sample.