2024-03-28T14:38:12Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/1309962020-07-03T12:19:49Zcom_10261_5062com_10261_5col_10261_5064
00925njm 22002777a 4500
dc
Van Drooge, Barend L.
author
Garriga, Guillem
author
Koinig, Karin Anne
author
Psenner, Roland
author
Pechan, Paul
author
Grimalt, Joan O.
author
2014-04-10
Persistent Organic Pollutants (POPs) have been restricted and prohibited at national level for several decades now and since the 21st century at international level under the Stockholm Convention and the Convention of Long-Range Transboundary Air Pollution (LRTAP). A high mountain lake sediment core was sampled in the Alps (Gossenköllesee) in summer 2010 and analyzed on POPs to examine whether the expected decreasing trends due to the implementation of the international Conventions could be observed. Higher POPs concentrations were observed in the sections corresponding to the period of large scale production and usage. p,p’-DDE and p,p’-DDD showed maximum concentrations in the core sections corresponding to the 1970s. These concentrations decreased to more or less constant levels in the top sediments, which is in agreement with the timing of past usage and banning of this pesticide. On the other hand, PCBs and HCB peaked in 1980s and the concentrations fluctuated afterwards. These observed profiles suggest that the studied site is still under influence of primary or secondary emissions and that the regulations of the international Conventions have still not been noticed in this site.
Atmosphere 5(2): 198-210 (2014)
2073-4433
http://hdl.handle.net/10261/130996
10.3390/atmos5020198
http://dx.doi.org/10.13039/501100000780
http://dx.doi.org/10.13039/501100003339
POPs
high mountain sediment
effectiveness international conventions
Sensitivity of a Remote Alpine System to the Stockholm and LRTAP Regulations in POP Emissions