5.5 The U.S. drinking-water standards for the following carcinogens are given during swimming.below. For each carcinogen, determine the lifetime individual cancer risk and the incremental cancer risk per year in a population of 300 million people.Calculate risk based on residential exposure factors recommended by EPA.

(a) Arsenic, MCL 0.01 mg/L, and SF = 1.5 kg day/mgQU1890=•Tabia

(b) Benzene, MCL=0.005 mg/L, and SF = 5.5 x 10-2 kg day/mg=0.0005 mg/L, and SF = 2.0

(c) Carbon tetra chloride, MCL = 0.005 mg/L, and SF = 1.3 × 10¹ kg day/mg

(d) Poly chlorinated biphenyls (PCBs), MCL kg day/mg, upper-bound, high-risk.

(e) Trichloroethylene, (TCE) MCLkg day/mginomies=Pre 0.005 mg/L, and SF = 1.1 × 10-²022611 Pi viiliona spl

(f) Vinyl chloride, MCL = 0.002 mg/L, and SF=1.5 kg day/mgtasse de•