Journal
ENVIRONMENTAL SCIENCE & TECHNOLOGY
Volume 48, Issue 6, Pages 3203-3209Publisher
AMER CHEMICAL SOC
DOI: 10.1021/es405337g
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Funding
- European Commission [003933-2]
- complementary action [CTM2005-24238-E]
- Spanish Ministry of Science and Innovation
- JAE-DOC contract from CSIC
- European Social Fund (ESF)
- Basque Government
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The presence of organophosphate ester (OPE) flame retardants and plasticizers has been confirmed for the first time in the atmosphere over the Mediterranean and Black Seas. Atmospheric aerosol samples were collected during two West East oceanographic cruises across the Mediterranean and in the southwest Black Sea. This comprehensive assessment of baseline concentrations of aerosol phase OPEs, spatial distribution, and related deposition fluxes reveals levels ranging from 0.4 to 6.0 ng m(-3) for the Sigma 14OPEs and a lack of significant differences among subbasins. Levels measured across the Mediterranean Sea and in the Black Sea are in the upper range or higher than those from previous reports for the marine atmosphere, presumably due to proximity to sources. From 13 to 260 tons of OPEs are estimated to be annually loaded to the Mediterranean Sea open waters from the atmosphere. Tris-(1-chloro-2-propyl)phosphate (TCPP) was the most abundant compound over the atmosphere of all the Mediterranean and Black Sea sub-basins, and therefore the chemical reaching surface waters at a higher extent by dry deposition. The atmospheric deposition fluxes of phosphorus due to OPE deposition is a significant fraction of known atmospheric inputs of new organic phosphorus (P), suggesting the relevant role that anthropogenic organic pollutants could play in the P cycle.
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