Gross disproportionality

Gross disproportionate For each fatality, there should be one defined cost. So, when cost to avert the fatality is calculated (CBA), it is compared with the defined cost of fatality. For high-risk value, this factor could be 10, whereas for low risk value it could be 2. There is no gross term definition. This is done by judgment from case-to-case basis. 

The predicted risk of 8 x 10 pa leads to a gross disproportionality factor of 9.3 as shown in Figure 2.5 which, in practice, could be obtained using a spreadsheet for carrying out the log scale calculation mentioned above. The cost per life saved criteria thus becomes 9.3 x 1,000,000 = 9,300,000. 

If the quantity p of Table I and Figures 1 to 3 is less than one, then most products are formed by radical-radical recombinations and disproportionations. If there are three or more radicals of about equal importance, then there are more reactions than products, and most products are formed by several different reactions occurring at about the same rate. One mechanism may be consistent with all experimental data of a particular study, and also a quite different mechanism may be equally consistent with the experimental data. Either mechanism could be correct the chances are high that each is a gross oversimplification. 

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