This study uses contingent valuation method to compare willingness to pay for a risk decrease and willingness to accept for the same risk increase and consequently the values of statistical life for both transportation and cancer risks of death. The results show that WTA/WTP disparities are 4.98 and 6.7 for transportation and cancer risk, respectively. Further, non-monetary evaluations of a risk decrease and increase were studied to eliminate the income constraint. The result is consistent with the monetary evaluations, giving raise the need for using the right choice of measure.