ISSN:
1420-9136
Schlagwort(e):
Fluorocarbons
;
Local sources
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Geologie und Paläontologie
,
Physik
Notizen:
Abstract In the densely populated Wuppertal-Düsseldorf area the atmospheric concentrations of CCl2F2 and CCl3F near ground level were measured by ECGC and GC-MS method. Special systems for sampling and calibrating were developed. As mean concentration averages over the time period from December 1976 to May 1977 a value of 650±356 pptv was determined for CCl2F2 (F12) and of 490±279 pptv for CCl3F (F 11).
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF01636909
Permalink