scholarly journals Using PUF disk passive samplers to simultaneously measure air concentrations of persistent organic pollutants (POPs) across the Tuscany Region, Italy

2012 ◽  
Vol 3 (1) ◽  
pp. 88-94 ◽  
Author(s):  
Victor H Estellano ◽  
Karla Pozo ◽  
Tom Harner ◽  
Simonetta Corsolini ◽  
Silvano Focardi
Keyword(s):  
Organic Pollutants ◽  
Persistent Organic Pollutants ◽  
Passive Samplers ◽  
Air Concentrations

scholarly journals Dispersal of persistent organic pollutants from fiber-contaminated sediments: biotic and abiotic pathways

2021 ◽  
Author(s):  
Anna-Karin Dahlberg ◽  
Anna Apler ◽  
Paul Frogner-Kockum ◽  
Gunnel Göransson ◽  
Ian Snowball ◽  
...  
Keyword(s):  
Organic Pollutants ◽  
Persistent Organic Pollutants ◽  
River Estuary ◽  
Contaminated Sediments ◽  
The Body ◽  
Passive Samplers ◽  
The Other ◽  
Sediment Surface ◽  
Average Particle ◽  
Particle Resuspension

Abstract Purpose Numerous sites contaminated with fiber emissions from pulp and paper industries are found in coastal areas of the Baltic Sea, but there is limited knowledge about the magnitude of dispersal of persistent organic pollutants (POPs) from these anthropogenic, organic-rich sediments called fiberbanks. The aim of this study was to quantify and compare different POP dispersal pathways from such fiberbanks. Dispersal mechanisms studied included abiotic and biotic routes (dissolved in water, particle-bound, and bioaccumulation). Materials and methods Contaminated fibrous sediments located in Ångermanälven River estuary in north-eastern Sweden were studied in sediment types representing different fiber content (i.e., fiberbanks, fiber-rich sediments, and less fiber impacted sediments). Sediment-to-water fluxes of dissolved contaminants (polychlorinated biphenyls (PCBs), hexachlorobenzene (HCB), and dichlorodiphenyltrichloroethane (DDT)) were measured in situ using benthic flux chambers. Particle resuspension was measured by sampling bottom water, before and after disturbing the sediment surface. Benthic biota was collected to determine the body burden of contaminants and to determine biota-pore water accumulation factors (BAFPW) and biota-sediment accumulation factors (BSAFs). In addition, concentrations of dissolved POPs in the water column were measured in field using passive samplers. Instrumental analysis was performed using gas chromatography coupled to a triple quadrupole mass spectrometer (GC-MS/MS). Results and discussion The flux of dissolved Σ20PCBs was approximately two times higher from one of the investigated fiberbanks (3.4 ng m− 2 day− 1) compared to the other. The average particle burden of PCBs was also higher at this fiberbank after artificial disturbance (15 ng g−1 particle), which indicates that larger amounts of contaminants are likely to disperse via particle resuspension from this site compared to the other fiberbank (4.8 ng g− 1 particle). The difference might be associated with a layer of recently settled minerogenic material that covers one of the fiberbanks, which probably functions as a protective barrier. The lack of benthic biota implies that contaminant release by bioturbation is negligible in the studied fiberbanks. However, benthic biota from fiber-rich sediment showed bioaccumulation and biomagnification of contaminants. Conclusions The importance of diffusive flux from fiberbanks under undisturbed conditions became apparent when the different dispersal pathways were quantified. However, no dispersal pathway could be judged as irrelevant, since even under undisturbed conditions, advective particle transport was significant. Additionally, the uptake by biota and trophic transfer can be considerable. Quantification of dispersal routes and understanding of the relative importance of various pathways is critical for proper risk assessment and management of contaminated sediments.

scholarly journals Air concentrations and transport of persistent organic pollutants (POPs) in mountains of southeast and southern Brazil

2012 ◽  
Vol 3 (4) ◽  
pp. 417-425 ◽  
Author(s):  
Rodrigo Ornellas Meire ◽  
Sum Chi Lee ◽  
Admir Creso Targino ◽  
Joao Paulo M. Torres ◽  
Tom Harner
Keyword(s):  
Organic Pollutants ◽  
Persistent Organic Pollutants ◽  
Southern Brazil ◽  
Air Concentrations

Passive-Sampler Derived Air Concentrations of Persistent Organic Pollutants on a North−South Transect in Chile

2004 ◽  
Vol 38 (24) ◽  
pp. 6529-6537 ◽  
Author(s):  
Karla Pozo ◽  
Tom Harner ◽  
Mahiba Shoeib ◽  
Roberto Urrutia ◽  
Ricardo Barra ◽  
...  
Keyword(s):  
Organic Pollutants ◽  
Persistent Organic Pollutants ◽  
Passive Sampler ◽  
Air Concentrations
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