contamination — The addition to water of any substance or property preventing the use or reducing the usability of the water. There is no specific limits, since the degree of permissible contamination depends upon the intended end use, or uses, of the water… … Lexicon of Cave and Karst Terminology
Soil contamination — Excavation showing soil contamination at a disused gasworks. Soil contamination or soil pollution is caused by the presence of xenobiotic (human made) chemicals or other alteration in the natural soil environment. This type of contamination… … Wikipedia
Spin contamination — In computational chemistry, spin contamination is the artificial mixing of different electronic spin states. This can occur when an approximate orbital based wave function is represented in an unrestricted form – that is, when the spatial parts… … Wikipedia
level of contamination — level of pollution, degree to which something is polluted … English contemporary dictionary
biblical literature — Introduction four bodies of written works: the Old Testament writings according to the Hebrew canon; intertestamental works, including the Old Testament Apocrypha; the New Testament writings; and the New Testament Apocrypha. The Old… … Universalium
Colony-forming unit — For the human hematopoietic cell, see Hematopoietic stem cell. In microbiology, colony forming unit (CFU or cfu) is a measure of viable bacterial or fungal numbers. Unlike direct microscopic counts where all cells, dead and living, are counted,… … Wikipedia
Biochemical Oxygen Demand — The weight of oxygen taken up mainly as a result of the oxidation of the constituents of a sample of water by biological action; expressed as the number of parts per million of oxygen taken up by the sample from water originally saturated with… … Energy terms
taršos lygis — statusas T sritis apsauga nuo naikinimo priemonių apibrėžtis Vietovės, vandens, oro, karo technikos, karių ir kt. objektų užteršimo radioaktyviosiomis ir nuodingosiomis medžiagomis kiekybinė charakteristika. Taršos lygis nustatomas RChŽ… … Apsaugos nuo naikinimo priemonių enciklopedinis žodynas
степень заражения — taršos lygis statusas T sritis apsauga nuo naikinimo priemonių apibrėžtis Vietovės, vandens, oro, karo technikos, karių ir kt. objektų užteršimo radioaktyviosiomis ir nuodingosiomis medžiagomis kiekybinė charakteristika. Taršos lygis nustatomas… … Apsaugos nuo naikinimo priemonių enciklopedinis žodynas
bioburden — Degree of microbial contamination or microbial load; the number of microorganisms contaminating an object … Medical dictionary