ISSN:
1476-4687
Source:
Nature Archives 1869 - 2009
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
Notes:
[Auszug] Sampling sites have been chosen for their access to large well-mixed air masses, remote from human influence. Monthly flask sample pairs have been collected in clean air conditions. Filling a flask involves venting off clean, dry, storage air, flushing for 15-20 min at 5-101 min"1 with a metal ...
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/327495a0
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