ENVIRONMENT · INDUSTRY|chemistry
- ocsaigin thuaslagtha Tagairt Faomhadh an téarma seo mar chuid de Thionscadal Lex
- ga
- dissolved oxygen concentration | dissolved oxygen | DO
- en
- Sainmhíniú The amount of free (not chemically combined) oxygen dissolved in water, wastewater, or other liquid, usually expressed in milligrams per liter, parts per million, or percent of saturation. Tagairt IWATE, UNU, NTT, Environment Network Collaborative Project, http://www.ias.unu.edu/ecology/monitoring/terms.htm [7.12.2006]
- Nóta Adequate concentrations of dissolved oxygen are necessary for the life of fish and other aquatic organisms and the prevention of offensive odors. Dissolved oxygen levels are considered the most important and commonly employed measurement of water quality and indicator of a water body's ability to support desirable aquatic life. The ideal dissolved oxygen level for fish is between 7 and 9 milligrams per liter (mg/l); most fish cannot survive at levels below 3 mg/l of dissolved oxygen. Secondary and advanced wastewater treatment techniques are generally designed to ensure adequate dissolved oxygen in waste-receiving waters.
- oxygène dissous | O.D.
- fr
- Sainmhíniú quantité d'oxygène dissous dans l'eau à une température donnée, généralement exprimée en milligrammes par litre ou en pourcentage de saturation Tagairt Rivard,Denis,Vocabulaire des précipitations acides et de la pollution atmosphérique,1988,RINT,Ottawa