ISSN:
1476-4687
Source:
Nature Archives 1869 - 2009
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
Notes:
[Auszug] CONCENTRATIONS of polychlorobiphenyls (PCBs) have supposedly1 declined 40-fold over wide regions of the North Atlantic from levels of about 30 ng I"1 in 1971-72, to 0.8 ng I-1 in 1973-74. This decline has been attributed1 to the restriction of sales of PCB for non-captive uses during the period ...
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/256239a0