Table 3.

Frequency analysis for variable on duration of exposure.

No	Variables	Percentage (%)
		18–35	36–45	46 and above
1	Tanker driver Ages	27.4	40.3	32.3
		Smoker	Non-smoker
2	Tanker driver smoking habit	51.6	48.4
		8 years and below	9 years an above
3	Working experience as a tanker driver	66.1	33.9
		Less than 8 hrs	More than 8 hrs
4	Working hour in a day	45.2	54.8
		Identified	Not identified
5	How frequent did you identify spillage in a day	33.9	66.1
		Always	Rarely/a few times/often	Never
6	How frequent did you notice/smell the exposure identify due to spillage	19.4	41.9	38.7
		Yes	No
7	Have you come into direct contact (touch/smell) with petrol during work	56.5	43.2