PCB Chemical Threat to Europe’s Killer Whales and Dolphins Adan Posted on January 14, 2016 Posted in Aggregated No Comments PCBS have a wide-ranging impact on human and animal health, from links to cancer, to suppressing the immune system and causing reproductive problems. Share this:Share Share on Facebook (Opens in new window) Facebook Share on Reddit (Opens in new window) Reddit Share on X (Opens in new window) X Share on LinkedIn (Opens in new window) LinkedIn Email a link to a friend (Opens in new window) Email