Dynamic passive sampling of hydrophobic organic compounds in surface seawater along the South Atlantic Ocean east-to-west transect and across the Black Sea

• Published in: Marine pollution bulletin Vol. 168; p. 112375
• Main Authors: Sobotka, Jaromír, Lammel, Gerhard, Slobodník, Jaroslav, Schink, Anne, Prokeš, Roman, Vrana, Branislav
• Format: Journal Article
• Language: English
• Published: England Elsevier Ltd 01.07.2021; Elsevier BV
• Subjects: Brominated flame retardants; Bromination; Chemical analysis; Chlorobenzene; Concentration gradient; Contamination; DDT; Endosulfan; Flame retardants; Free dissolved concentration; Hydrophobicity; Marine pollution; Metabolites; Ocean currents; Organic compounds; Organochlorine pesticides; Passive sampling; PCB; Persistent organic pollutants; Pesticides; Plumes; Pollutants; Polybrominated diphenyl ethers; Polychlorinated biphenyls; Rivers; Samplers; Sampling; Seawater; Silicone; Silicones; Spatial distribution; Water analysis; United States > US; Black Sea; Atlantic Ocean; Free dissolved concentration; Polybrominated diphenyl ethers; Marine pollution; Passive sampling; Brominated flame retardants; Organochlorine pesticides; Silicone; Polychlorinated biphenyls; Persistent organic pollutants; Contamination; Seawater
• ISSN: 0025-326X; 1879-3363
• DOI: 10.1016/j.marpolbul.2021.112375

Mapping of hydrophobic organic compounds (HOCs) in surface seawater on an east-to-west transect of the South Atlantic Ocean (SAO) and across the Black Sea (BS) in 2016 was performed by a dynamic passive sampling device containing silicone-based passive samplers. In SAO as well as in BS the measurements confirmed freely dissolved concentrations of polychlorinated biphenyls, DDT and its metabolites, chlorobenzenes, cyclodiene pesticides, and brominated flame retardants in the range of units to low hundreds of pg per litre. The findings indicate that the spatial distribution of HOCs and emerging pollutants in the SAO and the BS is influenced by riverine inputs, ocean currents and atmospheric deposition from continental plumes. Observed concentration gradients indicate that eastern SAO receives DDT from sources in South Africa, whereas the emissions of endosulfan originate in South America. Elevated HOC concentrations in the northwestern BS are related to their discharge by rivers from the European continent. [Display omitted] •The first time application of DPS in marine surface water from cruising ships.•DPS allows to measure HOCs down to pg L−1 in only 3 days of passive sampler exposure.•HBCD was quantified for the first time in surface water in open ocean waters.•PBDE and NBFR were quantified for the first time in the Black Sea surface water.