Comparison of BTX Profiles and Their Mutagenicity Assessment at Two Sites of Agra, India

Table 6

MIR coefficient, VOC-OH rate constant, and ranking of BTX according to mass concentration, ozone formation potential, and reaction with OH leading to formation of oxidants.

Hydrocarbon	MIR coefficient	OH*	VOC (μg m^−3)	O3 formation potential^a	Reaction with OH^b
Benzene	0.42	1.23	14.7	6.2	1.8
Toluene	2.7	5.96	8.1	21.9	12.6
o-,m-xylene	8.2	23.6	2.1	16.9	11.1
p-xylene	6.5	13.7	5.1	33.2	15.8

^aVOC × MIR.
^bVOC in ppb × VOC-OH* rate const. (10−12 cm³/molecule/s) multiplied by 10¹².