Concentration (PPM)
UV-A(2.0 mW/ cm
2
)
UV-B(0.5 mW/ cm
2
)
Sunlight
25
0.170
0.159
0.197
50
0.455
0.309
0.437
75
0.690
0.384
0.424
100
0.511
0.360
0.097
Table 3:
Generation of superoxide in benzopyrene on exposing in UV-A, UV-B, and Sunlight for 20mins.
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