May92017Scottish killer whale contained one of the highest concentrations of PCB pollutants ever recorded in marine mammals www.sruc.ac.uk Latest News SRUC TwitterLinkedinFacebookemailThe Scottish Marine Animal Stranding Scheme, managed by SRUC, has found that a killer whale found dead on Tiree had one of the highest levels of polychlorinated biphenyl (PCB) pollution ever recorded. Follow this news feed: SRUC