[MARMAM] gas refinery discharge impact on cetaceans

Hello, I am seeking information, published papers on the effects of (produced water) marine effluent discharges from gas refinerys on marine mammals. Discharges include Hydrocarbons(PAH,BTEX,TPH) -0.5mg/l Phenol-0.001mg/l, Metals (As,Cd,Cr,Cu,Hg,Ni,Pb)-0.5mg/l Copper -0.05mg/l, Cadmium 0.0005mg/l, Arsenic 0.05mg/l,Mercury-0.0001mg/l,Lead-0.005mg/l volumn emitted per day 720 cubic metre for 15 years. Any information appreciated. Shay Fennelly Dublin Ireland.