PMID- 34856284
OWN - NLM
STAT- MEDLINE
DCOM- 20220114
LR  - 20220114
IS  - 1879-1026 (Electronic)
IS  - 0048-9697 (Linking)
VI  - 808
DP  - 2022 Feb 20
TI  - Organic contaminants in marine sediments and seawater: A review for drawing 
      environmental diagnostics and searching for informative predictors.
PG  - 152012
LID - S0048-9697(21)07088-1 [pii]
LID - 10.1016/j.scitotenv.2021.152012 [doi]
AB  - Marine ecosystems represent major sinks for persistent organic pollutants (POPs). 
      Yet, while their regulations fit localized activity and emissions, POPs are 
      mobile and can persist away from their source. The present review draws an 
      environmental diagnostic of the organic substances studied over the past forty 
      months, which ones accumulated the most, and where. Maximum reported 
      concentration was used as a proxy for the accumulation of contaminants. POPs 
      occurrences studied in the Jan 2018-April 2021 period were recorded into a 
      database, along with (i) the geographical location of the sample and its coastal 
      or offshore origin, (ii) the type of compartment analyzed (water vs sediment), as 
      well as (iii) the POPs and the sample physical-chemical parameters reported. In 
      the articles reviewed, maximum reported concentrations of POPs were in the ng/L 
      range in seawater and in the mug/kg range in sediments. Some hotspots presented 
      concentrations high enough to represent a hazard for sea organisms in the water 
      columns (mug/L range) or in surficial sediments (mg/kg range). On a global scale, 
      offshore (>1 km from the coast) maximum reported concentrations were, for the 
      majority of the POPs, equivalent or higher than coastal ones. Finally, a POP 
      solubility threshold (900 mg/L) was observed above which POPs would not be found 
      in offshore waters, but only in sediments. This review highlights that studying 
      POP accumulation away from their sources is fundamental for the diagnostic of 
      long-lasting marine POPs contaminations. Further, POPs lipophilicity is a good 
      predictor for offshore transport, and an indicator of interest for predicting 
      sediment accumulation. Although POPs fate and transport in oceans is complex and 
      require a finer analysis that this review could provide, the present work is a 
      step forward identifying the hotspots in which POPs could be of particular 
      concern, along with chemical indicators to predict for POPs accumulation in 
      marine reservoirs.
CI  - Copyright (c) 2021 Elsevier B.V. All rights reserved.
FAU - Avellan, Astrid
AU  - Avellan A
AD  - Department of Chemistry and CESAM, Universidade de Aveiro, Portugal. Electronic 
      address: aavellan@ua.pt.
FAU - Duarte, Armando
AU  - Duarte A
AD  - Department of Chemistry and CESAM, Universidade de Aveiro, Portugal.
FAU - Rocha-Santos, Teresa
AU  - Rocha-Santos T
AD  - Department of Chemistry and CESAM, Universidade de Aveiro, Portugal.
LA  - eng
PT  - Journal Article
PT  - Review
DEP - 20211129
PL  - Netherlands
TA  - Sci Total Environ
JT  - The Science of the total environment
JID - 0330500
RN  - 0 (Water Pollutants, Chemical)
SB  - IM
MH  - Ecosystem
MH  - *Environmental Monitoring
MH  - Geologic Sediments
MH  - Seawater
MH  - *Water Pollutants, Chemical/analysis
OTO - NOTNLM
OT  - Coast
OT  - Hotspots, offshore
OT  - Marine environment
OT  - Persistent organic pollutants
OT  - Predictors
COIS- Declaration of competing interest The authors declare that they have no known 
      competing financial interests or personal relationships that could have appeared 
      to influence the work reported in this paper.
EDAT- 2021/12/03 06:00
MHDA- 2022/01/15 06:00
CRDT- 2021/12/02 20:12
PHST- 2021/08/24 00:00 [received]
PHST- 2021/11/22 00:00 [revised]
PHST- 2021/11/23 00:00 [accepted]
PHST- 2021/12/03 06:00 [pubmed]
PHST- 2022/01/15 06:00 [medline]
PHST- 2021/12/02 20:12 [entrez]
AID - S0048-9697(21)07088-1 [pii]
AID - 10.1016/j.scitotenv.2021.152012 [doi]
PST - ppublish
SO  - Sci Total Environ. 2022 Feb 20;808:152012. doi: 10.1016/j.scitotenv.2021.152012. 
      Epub 2021 Nov 29.