PETER YATES / SCIENCE PHOTO LIBRARY PETER YATES / SCIENCE PHOTO LIBRARY
Zebra mussel pollution. Masked workers use a water jet to clear Zebra mussels clogging the walls of the pump room of Detroit Edison's power station at Monroe in Michigan, USA. Zebra mussels Dreissena polymorpha have become a major water pollutant. They were first recorded in North America in June 1988, arriving in Lake St. Clair probably on a ship from Europe. Since then they have invaded lakes and rivers in the USA, breeding rapidly. By 1993, stretches of the Illinois river had achieved 94,000 mussels per square metre. Not only do the mussels encrust water pipes and pump rooms, but they also excrete a corrosive substance. Zebra mussels may also destroy indigenous aquatic life.
Model release not required. Property release not required.