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Broman, Dag
Publications (10 of 21) Show all publications
Reth, M., Berger, U., Broman, D., Cousins, I., Nilsson, D. & McLachlan, M. S. (2011). Water-to-air transfer of perfluorinated carboxylates and sulfonates in a sea spray simulator. Environmental Chemistry, 8(4), 381-388
Open this publication in new window or tab >>Water-to-air transfer of perfluorinated carboxylates and sulfonates in a sea spray simulator
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2011 (English)In: Environmental Chemistry, ISSN 1448-2517, E-ISSN 1449-8979, Vol. 8, no 4, p. 381-388Article in journal (Refereed) Published
Abstract [en]

One hypothesis for the origin of perfluorinated alkyl acids, their salts and conjugate bases (here collectively termed PFAAs) in the atmosphere is transfer from the surface ocean by sea spray, the mechanistic explanation being that the surface active properties of PFAAs result in their enrichment on the surface of bursting bubbles. The water-to-air transfer of C(6)-C(14) perfluorocarboxylates (PFCAs) and C(6), C(8) and C(10) perfluorosulfonates (PFSAs) was studied in a laboratory scale sea spray simulator containing tap water spiked with PFCAs and PFSAs. The sequestration of the PFAAs out of bulk water and to the air-water surface was shown to increase exponentially with the length of the perfluorinated alkyl chain. Volatilisation of the PFAAs from an aqueous solution in the absence of spray resulted in less than 1% transfer to the atmosphere during the experiment. In the presence of spray the transfer rate from water to air increased by up to 1360 times. The enhancement was dependent on the PFAA chain length, with the C(6) carboxylate showing an enhancement of a factor of 37, the C(7) carboxylate an enhancement of 320, whereas for all remaining PFAAs the enhancement exceeded 450 with the exception of the C(14) carboxylate (106).

National Category
Environmental Sciences Analytical Chemistry
Identifiers
urn:nbn:se:su:diva-66873 (URN)10.1071/EN11007 (DOI)000294056000006 ()
Note
authorCount :6Available from: 2011-12-22 Created: 2011-12-21 Last updated: 2022-02-24Bibliographically approved
Cornelissen, G., Broman, D. & Naes, K. (2010). Freely dissolved PCDD/F concentrations in the Frierfjord, Norway: comparing equilibrium passive sampling with ""active"" water sampling. Journal of Soils and Sediments, 10(2), 162-171
Open this publication in new window or tab >>Freely dissolved PCDD/F concentrations in the Frierfjord, Norway: comparing equilibrium passive sampling with ""active"" water sampling
2010 (English)In: Journal of Soils and Sediments, ISSN 1439-0108, E-ISSN 1614-7480, Vol. 10, no 2, p. 162-171Article in journal (Refereed) Published
Abstract [en]

Equilibrium passive samplers consisting of 55-A mu m polyoxymethylene (POM) and 170-A mu m polydimethylsiloxane were tested for the analysis of polychlorinated dibenzodioxin/furan (PCDD/F) in the pore water and overlying water of the Frierfjord, a bay in southern Norway. This fjord is heavily polluted with PCDD/Fs due to emissions from a former Mg smelter. Field exposures of both equilibrium passive sampler types yielded similar results for freely dissolved PCDD/F concentrations (C (W,free)) in the overlying water. In addition, the passive sampling data deviated less than an order of magnitude from C (W,free) obtained with conventional ""active"" sampling through pumping/filtration over glass fiber filters and polyurethane foam. A similar comparison was done for the pore water, where POM passive samplers also proved to yield freely dissolved pore water concentrations (C (PW,free)) that deviated less than an order of magnitude from earlier published values measured by direct pore water extraction. The data were also used to derive sediment-water activity ratios, which indicate the diffusive flux direction. High sediment-to-water activity ratios (median value of 160 for 17 congeners) indicated a strong diffusion gradient between the sediment pore water and the overlying water, probably due to deposition of particle-bound PCDD/Fs in combination with low sedimentation rates.

Keywords
PCDD/F, Frierfjord, Equilibrium passive sampling, Free concentrations
National Category
Environmental Sciences Environmental Sciences
Identifiers
urn:nbn:se:su:diva-50156 (URN)10.1007/s11368-009-0152-3 (DOI)000274853100003 ()
Note
authorCount :3Available from: 2010-12-30 Created: 2010-12-21 Last updated: 2022-02-24Bibliographically approved
Magnér, J., Alsberg, T. & Broman, D. (2009). Bag-SPE – A convenient extraction method for screening of pharmaceutical-residues in influent and effluent water from sewage treatment plants. Analytical and Bioanalytical Chemistry, 395(5), 1481-1489
Open this publication in new window or tab >>Bag-SPE – A convenient extraction method for screening of pharmaceutical-residues in influent and effluent water from sewage treatment plants
2009 (English)In: Analytical and Bioanalytical Chemistry, ISSN 1618-2642, E-ISSN 1618-2650, Vol. 395, no 5, p. 1481-1489Article in journal (Refereed) Published
Abstract [en]

Bag-SPE is a solid phase extraction (SPE) technique here applied to sample pharmaceutical residues in wastewater. The device consisting of 20 mg polystyrene-divinylbenzene (PS-DVB) enclosed in a woven polyester-fabric was immersed into 20 mL sample. Extraction of the analytes was performed under gentle rotation (25 rpm) until distribution equilibrium was achieved (4 hours). The extraction efficiency for thirteen pharmaceuticals was evaluated for the bag-SPE sampler compared to a conventional SPE cartridge (Oasis HLB). All analyzes were determined on an ultra performance liquid chromatography (UPLC) coupled to a quadrupole time of flight (QToF) mass spectrometer.

The detection limit of the bag-SPE technique for the analytes in wastewater ranged from 15-100 ng/L with recoveries between 20.7-58.2 % and ion-suppressions between 2.2-53.2 %. Although the extraction efficiencies were lower with the bag-SPE sampler compared to the SPE technique, the two methods showed similar detection limits due to the lower ion-suppression experienced with the bag-SPE. The results demonstrate that bag-SPE is an attractive alternative to the more, in terms of manual handling, demanding SPE-technique.

Place, publisher, year, edition, pages
Springer, 2009
Keywords
Bag-SPE, Solid phase extraction, Pharmaceuticals, Wastewater, UPLC-QToF
National Category
Analytical Chemistry
Research subject
Applied Environmental Science
Identifiers
urn:nbn:se:su:diva-35522 (URN)10.1007/s00216-009-3099-8 (DOI)000270897000030 ()
Projects
This research was financially supported by European Union (European Commission, FP6 Contract No. 003956) “Novel Methods for Integrated Risk Assessment of Cumulative Stressors in the Environment” (NoMiracle) and by the Swedish research council Formas.
Available from: 2010-01-18 Created: 2010-01-18 Last updated: 2022-02-24Bibliographically approved
Ishaq, R., Persson, N., Zebühr, Y., Broman, D. & Naes, K. (2009). PCNs, PCDD/Fs, and Non-orthoPCBs, in Water and Bottom Sediments from the Industrialized Norwegian Grenlandsfjords. Environmental Science and Technology, 43(10), 3442-3447
Open this publication in new window or tab >>PCNs, PCDD/Fs, and Non-orthoPCBs, in Water and Bottom Sediments from the Industrialized Norwegian Grenlandsfjords
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2009 (English)In: Environmental Science and Technology, ISSN 0013-936X, E-ISSN 1520-5851, Vol. 43, no 10, p. 3442-3447Article in journal (Refereed) Published
Abstract [en]

Chlorinated toxic planar aromatic compounds were analyzed in the heavily industrialized Grenlandsfjords, which is a system of silled fjords in southern Norway. Surface water samples contained 7.4-160 ng/m(3) polychlorinated dibenzo-p-dioxins and furans (PCDD/Fs), 14-410 ng/m(3) polychlorinated naphthalenes (PCNs), and 0.31-2.4 ng/m(3) non-orthochlorinated biphenyls (non-orthoPCBs). The concentrations of PCDD/Fs were about 300 times higher than in the Baltic Sea. Highest level of the compounds was found near a magnesium production plant. Hepta-CDFs and penta-CNs dominated in the inner-fiord waters, and tetra-CB77 was the major non-orthoPCB congener. Sediment samples had PCDD/F concentration of 25-730 ng/g dw. Highest concentration was detected close to the magnesium plant. Octa-CDF dominated in the fjord sediments, especially near the magnesium plant, indicating a discharge-specific contamination with this congener. The isomer composition of PCDD/Fs and of PCNs, was unchanged when comparing samples from different layers of a sediment core from the deep anoxic water. This concludes that essentially zero degradation had occurred during similar to 50 years in this environment

Keywords
Baltic sea, Biphenyls, Contamination, Dibenzo-p-dioxins, GRENLANDSFJORDS, Marine-environment, Norway, PCBS, PCDD/F, PCDD/FS, Polychlorinated naphthalenes, Polycyclic aromatic-hydrocarbons, Samples, Sea, Sediment, Soot-carbon, Surface, surface water, Swedish baltic coast, Time trends, Water, Waters
National Category
Natural Sciences
Identifiers
urn:nbn:se:su:diva-34957 (URN)10.1021/es8011595 (DOI)000266046700010 ()0013-936X (ISBN)
Available from: 2010-01-13 Created: 2010-01-13 Last updated: 2022-02-25Bibliographically approved
Jahnke, A., Mayer, P., Broman, D. & McLachlan, M. S. (2009). Possibilities and limitations of equilibrium sampling using polydimethylsiloxane in fish tissue.. Chemosphere, 77(6), 764-70
Open this publication in new window or tab >>Possibilities and limitations of equilibrium sampling using polydimethylsiloxane in fish tissue.
2009 (English)In: Chemosphere, ISSN 0045-6535, E-ISSN 1879-1298, Vol. 77, no 6, p. 764-70Article in journal (Refereed) Published
Abstract [en]

Polydimethylsiloxane (PDMS) has been used for passive equilibrium sampling in numerous abiotic environmental matrices. Recently, this approach was extended to lipid-rich tissue. This work investigated the possibilities and limitations of using PDMS thin-film extraction for in tissue equilibrium sampling in fish species of varying lipid content. Polychlorinated biphenyls (PCBs) were used as model lipophilic organic pollutants. PDMS thin-films were inserted in intact fish tissue for differing time periods (1h up to 1 week). The thin-films were then solvent-extracted and the extracts were analyzed using gas chromatography coupled to mass spectrometry. Whether equilibrium had been established was investigated either by using PDMS thin-films of multiple thicknesses (140-620 microm) or by assessing kinetics by means of time series. Equilibration was found to be rapid (i.e. in the range of hours) in lipid-rich fish whereas equilibrium was not achieved within one week in tissues with low or medium lipid content (i.e. up to 2% lipids). Regarding lipid-rich fish, the newly developed method was found to be sufficiently sensitive to determine equilibrium partitioning concentrations of PCBs in lipids of samples from the Baltic Sea, and it is a promising approach for any kind of fatty tissue.

Keywords
In tissue equilibrium sampling, Silicone thin-film extraction, Internal exposure, Solid Phase Microextraction (SPME), Persistent organic pollutants (POPs), Environmental monitoring
National Category
Environmental Sciences Meteorology and Atmospheric Sciences
Identifiers
urn:nbn:se:su:diva-34613 (URN)10.1016/j.chemosphere.2009.08.025 (DOI)000271301300009 ()19765800 (PubMedID)
Available from: 2010-01-11 Created: 2010-01-11 Last updated: 2022-02-25Bibliographically approved
Magnér, J., Alsberg, T. & Broman, D. (2009). The Ability of a Novel Sorptive Polymer to Determine the Freely Dissolved Fraction of Polar Organic Compounds in the Presence of Fulvic Acid or Sediment. Analytical and Bioanalytical Chemistry, 395(5), 1525-1532
Open this publication in new window or tab >>The Ability of a Novel Sorptive Polymer to Determine the Freely Dissolved Fraction of Polar Organic Compounds in the Presence of Fulvic Acid or Sediment
2009 (English)In: Analytical and Bioanalytical Chemistry, ISSN 1618-2642, E-ISSN 1618-2650, Vol. 395, no 5, p. 1525-1532Article in journal (Refereed) Published
Abstract [en]

In the present study, a novel plastic material, poly(ethylene-co-vinyl acetate-co-carbon monoxide) (PEVAC), was evaluated as an absorptive passive equilibrium sampler for determination of the freely dissolved fraction of seven polar organic contaminants (POCs) in the presence of fulvic acid (FA) and sediment. The seven compounds selected were imidacloprid, carbendazim, metoprolol, atrazin, carbamazepine, diazinon and chlorpyrifos, i.e. a mixture of pharmaceuticals and pesticides having logarithmic octanol/water partitioning coefficient (Log KOW) ranging from 0.2 to 4.77.

The experiments demonstrated that the PEVAC sampler is well suited for determination of the freely dissolved fraction of chemicals in aquatic environments. Generally, the freely dissolved fraction of the POCs decreased with increasing hydrophobicity. However, strong interactions with functional groups of the organic matter seemed to dominate the partitioning for imidacloprid and carbendazim, having logarithmic dissociation partition coefficient (Log D) < 1.47, and for metoprolol which is positively charged at neutral pH.

Place, publisher, year, edition, pages
Springer, 2009
Keywords
Partitioning coefficient, Polar organic compounds, Fulvic acid, Sediment, PEVAC, LC-MS
National Category
Analytical Chemistry
Research subject
Applied Environmental Science
Identifiers
urn:nbn:se:su:diva-35503 (URN)10.1007/s00216-009-3100-6 (DOI)000270897000034 ()
Projects
This research was financially supported by European Union (European Commission, FP6 Contract No. 003956) “Novel Methods for Integrated Risk Assessment of Cumulative Stressors in the Environment” (NoMiracle).
Available from: 2010-01-18 Created: 2010-01-18 Last updated: 2022-02-24Bibliographically approved
Nfon, E., Cousins, I. T., Järvinen, O., Mukherjee, A. B., Verta, M. & Broman, D. (2009). Trophodynamics of mercury and other trace elements in a pelagic food chain from the Baltic Sea. Science of the Total Environment, 407(24), 6267-74
Open this publication in new window or tab >>Trophodynamics of mercury and other trace elements in a pelagic food chain from the Baltic Sea
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2009 (English)In: Science of the Total Environment, ISSN 0048-9697, E-ISSN 1879-1026, Vol. 407, no 24, p. 6267-74Article in journal (Refereed) Published
Abstract [en]

Mercury (Hg) and 13 other trace elements (Al, Ti, V, Cr, Fe, Mn, Co, Ni, Cu, Zn, As, Cd, and Pb) were measured in phytoplankton, zooplankton, mysis and herring in order to examine the trophodynamics in a well-studied pelagic food chain in the Baltic Sea. The fractionation of nitrogen isotopes (delta(15)N) was used to evaluate food web structure and to estimate the extent of trophic biomagnification of the various trace elements. Trophic magnification factors (TMFs) for each trace element were determined from the slope of the regression between trace element concentrations and delta(15)N. Calculated TMFs showed fundamental differences in the trophodynamics of the trace elements in the pelagic food chain studied. Concentrations of Al, Fe, Ni, Zn, Pb and Cd showed statistically significant decreases (TMF<1) with increasing trophic levels and thus these trace elements tropically dilute or biodilute in this Baltic food chain. Cu, As, Cr, Mn, V, Ti and Co showed no significant relationships with trophic levels. Hg was unique among the trace elements studied in demonstrating a statistically significant increase (TMF>1) in concentration with trophic level i.e. Hg biomagnifies in this Baltic food chain. The estimated TMF for Hg in this food chain was comparable to TMFs observed elsewhere for diverse food chains and locations.

Keywords
Metal; Mercury; Biomagnification; Biodilution; Stable isotopes; Food chain; Baltic Sea
National Category
Natural Sciences
Identifiers
urn:nbn:se:su:diva-34624 (URN)10.1016/j.scitotenv.2009.08.032 (DOI)000272153000018 ()19767059 (PubMedID)
Available from: 2010-01-11 Created: 2010-01-11 Last updated: 2022-02-25Bibliographically approved
Balk, L., Hägerroth, P.-A., Åkerman, G., Hanson, M., Tjärnlund, U., Hansson, T., . . . Sundberg, H. (2009). Wild birds of declining European species are dying from a thiamine deficiency syndrome.. Proceedings of the National Academy of Sciences of the United States of America, 106(29), 12001-12006
Open this publication in new window or tab >>Wild birds of declining European species are dying from a thiamine deficiency syndrome.
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2009 (English)In: Proceedings of the National Academy of Sciences of the United States of America, ISSN 0027-8424, E-ISSN 1091-6490, Vol. 106, no 29, p. 12001-12006Article in journal (Refereed) Published
Abstract [en]

Wild birds of several species are dying in large numbers from an idiopathic paralytic disease in the Baltic Sea area. Here, we demonstrate strong relationships between this disease, breeding failure, and thiamine (vitamin B(1)) deficiency in eggs, pulli, and full-grown individuals. Thiamine is essential for vertebrates, and its diphosphorylated form functions as a cofactor for several life sustaining enzymes, whereas the triphosphorylated form is necessary for the functioning of neuronal membranes. Paralyzed individuals were remedied by thiamine treatment. Moreover, thiamine deficiency and detrimental effects on thiamine-dependent enzymes were demonstrated in the yolk, liver, and brain. We propose that the mortality and breeding failure are part of a thiamine deficiency syndrome, which may have contributed significantly to declines in many bird populations during the last decades.

Keywords
α-ketoglutarate dehydrogenase, avian, extinction, transketolase
National Category
Microbiology
Identifiers
urn:nbn:se:su:diva-34605 (URN)10.1073/pnas.0902903106 (DOI)000268178400035 ()19597145 (PubMedID)
Available from: 2010-01-11 Created: 2010-01-11 Last updated: 2022-02-25Bibliographically approved
Nfon, E., Cousins, I. T. & Broman, D. (2008). Biomagnification of organic pollutants in benthic and pelagic marine food chains from the Baltic Sea. Science of the Total Environment, 397(1-3), 190-204
Open this publication in new window or tab >>Biomagnification of organic pollutants in benthic and pelagic marine food chains from the Baltic Sea
2008 (English)In: Science of the Total Environment, ISSN 0048-9697, E-ISSN 1879-1026, Vol. 397, no 1-3, p. 190-204Article in journal (Refereed) Published
Abstract [en]

The trophic transfer of organic pollutants with varying physical chemical properties was determined in both a pelagic and benthic food chain using delta N-15 as a continuous variable for assessing trophic levels. The trophic transfer of organic pollutants through the entire food chain in terms of food chain magnification factors (FCMFs) was quantified from the slope of the regression between In [concentration] and delta N-15. Organic pollutants with statistically significant FCMFs >1 were considered to biomagnify within the food chain, whereas those with FCMFs < 1 were considered to trophically dilute. Statistically significant FCMFs >1 were found for PCB congeners and organochlorine pesticides in the Baltic food chains whereas statistically significant FCMFs <1 were found for PAHs and PCNs due to trophic dilution resulting from metabolism. FCMFs were generally greater in the pelagic food chain than in the benthic food chain. However, estimated FCMFs for the benthic food chain are likely in error, as the delta N-15 method suggested a food chain structure which was not consistent with the known dietary patterns of the species. Biomagnification factors (BMFs) were additionally calculated as the ratio of the lipid normalized concentrations in the predator and prey species with adjustment for trophic level and were generally consistent with the FCMFs with BMF >1 for PCBs and organochlorines.

Keywords
Baltic Sea, trophic transfer, biomagnification, organic pollutants, nitrogen isotopes, metabolism, food chain magnification
National Category
Earth and Related Environmental Sciences
Identifiers
urn:nbn:se:su:diva-18910 (URN)10.1016/j.scitotenv.2008.02.029 (DOI)000256923000019 ()
Available from: 2009-02-16 Created: 2009-02-16 Last updated: 2022-02-25Bibliographically approved
Cornelissen, G., Cousins, I., Wiberg, K., Tysklind, M., Holmström, H. & Broman, D. (2008). Black carbon-dominated PCDD/Fs sorption to soils at a former wood impregnation site. Chemosphere, 72, 1455-1461
Open this publication in new window or tab >>Black carbon-dominated PCDD/Fs sorption to soils at a former wood impregnation site
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2008 (English)In: Chemosphere, Vol. 72, p. 1455-1461Article in journal (Refereed) Published
Keywords
Environmental science
Identifiers
urn:nbn:se:su:diva-18925 (URN)doi:10.1016/j.chemosphere.2008.05.010 (DOI)000259166200009 ()
Available from: 2009-02-17 Created: 2009-02-17 Last updated: 2022-02-25Bibliographically approved
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