Orca Whale Killer Whale Poster San Juan Islands Shirt. Pollutants, including used motor oil, antifreeze, detergents, litter, paint, pesticides, pet waste, and copper, are flushed off streets and into storm drains which lead straight into rivers, creeks, and the oceans. Toxic chemicals (DDT and PCB's) in the ocean continue to affect marine mammals. Educating the public about this serious water quality issue is a priority for each individual.