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CONCENTRATION NATURELLE [1 record]
Record 1 - internal organization data 2009-09-28
Record 1, English
Record 1, Subject field(s)
- Pollution (General)
Record 1, Main entry term, English
- background concentration
1, record 1, English, background%20concentration
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- natural background concentration 2, record 1, English, natural%20background%20concentration
correct
- natural concentration 3, record 1, English, natural%20concentration
correct
- baseline concentration 4, record 1, English, baseline%20concentration
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
Concentration of pollutants which is measured at sites not subject to local manmade pollution or to transfer effects, and which is due to pollution from natural phenomena. 5, record 1, English, - background%20concentration
Record number: 1, Textual support number: 1 CONT
With sulphur dioxide as a notable exception, the natural sources of many gases far exceed the anthropogenic sources (man-made), at least a global basis ... However, deposition processes tend to operate partially on a regional scale and therefore observed background concentration for these gases can vary from high to extremely low. 6, record 1, English, - background%20concentration
Record number: 1, Textual support number: 2 CONT
Each year the concentration of the ozone decreases by approximately two percent and the ozone layer over the South Pole is already fifty percent of its natural concentration. 5, record 1, English, - background%20concentration
Record number: 1, Textual support number: 3 CONT
It is ... normal to find metal in sediment; it is only when concentrations exceed background that metals are considered "contaminants." 7, record 1, English, - background%20concentration
Record 1, French
Record 1, Domaine(s)
- Pollution (Généralités)
Record 1, Main entry term, French
- concentration de fond
1, record 1, French, concentration%20de%20fond
correct, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- concentration naturelle 2, record 1, French, concentration%20naturelle
correct, feminine noun
- concentration naturelle de fond 3, record 1, French, concentration%20naturelle%20de%20fond
correct, feminine noun
- concentration de base 4, record 1, French, concentration%20de%20base
feminine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Valeur de la concentration en polluants, mesurée dans un site éloigné de toute source et protégé de tout transfert, et qui correspond aux pollutions ayant pour origine des phénomènes naturels. 5, record 1, French, - concentration%20de%20fond
Record number: 1, Textual support number: 1 CONT
[...] les concentrations de fond sont en général extrêmement faibles, beaucoup plus faibles [...] que les concentrations des mêmes polluants que l'on peut mesurer dans les zones polluées. 5, record 1, French, - concentration%20de%20fond
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Contaminación (Generalidades)
Record 1, Main entry term, Spanish
- concentración de fondo
1, record 1, Spanish, concentraci%C3%B3n%20de%20fondo
feminine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
Record 1, Textual support, Spanish
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