PMID- 26520265
OWN - NLM
STAT- MEDLINE
DCOM- 20160901
LR  - 20151123
IS  - 1879-1026 (Electronic)
IS  - 0048-9697 (Linking)
VI  - 542
IP  - Pt A
DP  - 2016 Jan 15
TI  - Recent DDT and PCB contamination in the sediment and biota of the Como Bay (Lake 
      Como, Italy).
PG  - 404-10
LID - S0048-9697(15)30915-3 [pii]
LID - 10.1016/j.scitotenv.2015.10.099 [doi]
AB  - Due to its peculiar geographical and morphological characteristics, Lake Como 
      (Northern Italy) represents an interesting study-case for investigating the 
      sub-basin scale circulation of persistent organic pollutants (POPs) that, despite 
      being banned since the 1970s, have reached surprisingly high concentrations in 
      some southern alpine lakes as a consequence of their release from melting 
      glaciers in recent years. In particular, the Como Bay, which is located in the 
      city of Como, seems noteworthy because its waters have a longer residence time 
      than the other areas of the lake. The analyses of the historical concentration of 
      PCBs, pp'DDT and its metabolites in a sediment core sampled from the Como Bay 
      covering a time-period from their ban to recent times, showed that the DDTs have 
      never experienced a significant (p < 0.05) decrease over time, with 
      concentrations of the most abundant homologue, pp'DDE, ranging from 27 to 75 ng 
      g(-1) d.w. Conversely PCBs significantly (p < 0.05) decreased towards recent 
      times, reaching concentrations around 80 ng g(-1) d.w. The contribution of high 
      altitude and local sources was recorded also in the food web: both zooplankton 
      and the zooplanktivorous fish agone were mainly contaminated by pp'DDE (81.4 ng 
      g(-1) w.w. and 534.6 ng g(-1) w.w. respectively) and by the PCB metabolite 
      hexa-CB (449.7 ng g(-1) w.w. and 1672.1 ng g(-1) w.w. respectively). The DDT 
      concentrations in the agone (sampled during the years 2006-2009) never exceeded 
      the limits for human consumption in Italy, while concentrations of six selected 
      PCBs exceeded human health advisory recommendations in one of the fish samples 
      analysed, when it was approximately two times higher than the recommended value 
      of 125 ng g(-1) w.w.
FAU - Bettinetti, R
AU  - Bettinetti R
AD  - Department of Theoretical and Applied Sciences, University of Insubria, Via 
      Valleggio 11, 22100 Como, Italy. Electronic address: 
      roberta.bettinetti@uninsubria.it.
FAU - Quadroni, S
AU  - Quadroni S
AD  - Department of Theoretical and Applied Sciences, University of Insubria, Via 
      Valleggio 11, 22100 Como, Italy.
FAU - Boggio, E
AU  - Boggio E
AD  - Department of Theoretical and Applied Sciences, University of Insubria, Via 
      Valleggio 11, 22100 Como, Italy.
FAU - Galassi, S
AU  - Galassi S
AD  - University of Milan, Italy.
LA  - eng
PT  - Journal Article
DEP - 20151103
PL  - Netherlands
TA  - Sci Total Environ
JT  - The Science of the total environment
JID - 0330500
RN  - 0 (Water Pollutants, Chemical)
RN  - CIW5S16655 (DDT)
RN  - DFC2HB4I0K (Polychlorinated Biphenyls)
SB  - IM
MH  - Animals
MH  - Aquatic Organisms/metabolism
MH  - Bays/chemistry
MH  - Biota
MH  - DDT/*analysis/metabolism
MH  - *Environmental Monitoring
MH  - Fishes/metabolism
MH  - Food Chain
MH  - Lakes/chemistry
MH  - Polychlorinated Biphenyls/*analysis/metabolism
MH  - Water Pollutants, Chemical/*analysis/metabolism
MH  - Zooplankton/metabolism
OTO - NOTNLM
OT  - Agone
OT  - DDTs
OT  - Human health
OT  - PCBs
OT  - Paleolimnology and ecotoxicology
OT  - Zooplankton
EDAT- 2015/11/02 06:00
MHDA- 2016/09/02 06:00
CRDT- 2015/11/02 06:00
PHST- 2015/07/06 00:00 [received]
PHST- 2015/10/20 00:00 [revised]
PHST- 2015/10/20 00:00 [accepted]
PHST- 2015/11/02 06:00 [entrez]
PHST- 2015/11/02 06:00 [pubmed]
PHST- 2016/09/02 06:00 [medline]
AID - S0048-9697(15)30915-3 [pii]
AID - 10.1016/j.scitotenv.2015.10.099 [doi]
PST - ppublish
SO  - Sci Total Environ. 2016 Jan 15;542(Pt A):404-10. doi: 
      10.1016/j.scitotenv.2015.10.099. Epub 2015 Nov 3.