Fig. 1From: Comet assay based DNA evaluation of fuel filling stations and automobile workshops workers from Khyber Pakhtunkhwa province, PakistanDNA damage assessed using the comet assay. Mean comet score and comet classes in control and exposed groups. The cells were assessed visually and received class 0 (undamaged) to 4 (maximally damaged), according to the size and shape of the tail. Score were obtained using the mean score of three independent, blind evaluatorsBack to article page