Organophosphate Esters in Air, Snow, and Seawater in the North Atlantic and the Arctic

Link:
Autor/in:
Erscheinungsjahr:
2017
Medientyp:
Text
Schlagworte:
  • Flame Retardants
  • Organophosphates
  • Esters OPEs
  • Polychlorinated Biphenyls
  • Organic Pollutants
  • Halogenated Diphenyl Ethers
  • Flame Retardants
  • Organophosphates
  • Esters OPEs
  • Polychlorinated Biphenyls
  • Organic Pollutants
  • Halogenated Diphenyl Ethers
Beschreibung:
  • The concentrations of eight organophosphate esters (OPEs) have been investigated in air, snow and seawater samples collected during the `cruise of ARK-XXVIII/2 from sixth June to third July 2014 across the North Atlantic and the Arctic. The sum of gaseous and particle concentrations (Sigma OPE) ranged from 3S to 343 pg/m(3). The three chkirinated OPEs accounted for 88 +/- 5\% of the Sigma OPE. The most abundant OPE was tris(2-chloroethyl) phosphate (TCEP), with concentrations ranging from 30 to 227 pg/m(3), followed by three major OPEs; such as tris(1-chloro,2-propyl) phosphate (TCPP, 0.8 to 82 pg/M-3), tri.'n-butyl phosphate (TnBP, 2 to 19 pg/m(3)), and tri-iso-butyi phosphate (TiBP, 0.3 to 14 pg/m(3)). The LOPE concentrations in snow and seawater ranged from 4356 to 10561 pg/L and from 348 to 8396 pg/L, respectively. The atmospheric particle-bound dry depositions of TCEP ranged from 2 to 12 ng/m(2)/day. The air seawater gas exchange fluxes were dominated by net volatilization from seawater to air for TCEP (mean, 146 239 ng/tri(2)/day), TCPP (mean, 1670 +/- 3031 ng/m(2)/day), TiBP (mean, 537 581 ng/m(2)/day) and TnBP (mean, 230 +/- 254 ng/m(2)/clay). This study highlighted that OPEs are subject to long-range transport via both air and seawater from the European continent and seas to the North Atlantic and the Arctic.
Lizenz:
  • info:eu-repo/semantics/restrictedAccess
Quellsystem:
Forschungsinformationssystem der UHH

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oai:www.edit.fis.uni-hamburg.de:publications/aad4169a-18db-4e88-a172-2726cf223ddc