Hair and nail samples were from different subjects within
Maiduguri Metropolis Borno State, Nigeria. Samples were
collected from subjects with respect to sex, age and those
working in iron welding workshop and liquor users and
non-liquor users. Hair samples of male subjects of age range
(0-10, 11-20, 21-30, 31-40, 41-50, 51-60 and 60-above years)
were collected from the nape of the scalp by cutting 2mm
from the scalp using a pair of sterilized stainless steel
scissors washed with ethanol, a neutral solvent to remove
external contamination. The hair samples collected were
sealed in plastic bags prior to analysis.