liu.seSearch for publications in DiVA
Change search
Link to record
Permanent link

Direct link
Publications (10 of 72) Show all publications
Svensson, T., Kylin, H., Gustavsson, M., Sandén, P. & Bastviken, D. (2021). Chlorine cycling and the fate of Cl in terrestrial environments. Environmental Science and Pollution Research, 28(7), 7691-7709
Open this publication in new window or tab >>Chlorine cycling and the fate of Cl in terrestrial environments
Show others...
2021 (English)In: Environmental Science and Pollution Research, ISSN 0944-1344, E-ISSN 1614-7499, Vol. 28, no 7, p. 7691-7709Article in journal (Refereed) Published
Abstract [en]

Chlorine (Cl) in the terrestrial environment is of interest from multiple perspectives, including the use of chloride as a tracer forwater flow and contaminant transport, organochlorine pollutants, Cl cycling, radioactive waste (radioecology; 36Cl is of largeconcern) and plant science (Cl as essential element for living plants).During the past decades, there has been a rapid developmenttowards improved understanding of the terrestrial Cl cycle. There is a ubiquitous and extensive natural chlorination of organicmatter in terrestrial ecosystems where naturally formed chlorinated organic compounds (Clorg) in soil frequently exceed theabundance of chloride. Chloride dominates import and export from terrestrial ecosystems while soil Clorg and biomass Cl candominate the standing stock Cl. This has important implications for Cl transport, as chloride will enter the Cl pools resulting inprolonged residence times. Clearly, these pools must be considered separately in future monitoring programs addressing Clcycling. Moreover, there are indications that (1) large amounts of Cl can accumulate in biomass, in some cases representing themain Cl pool; (2) emissions of volatile organic chlorines could be a significant export pathway of Cl and (3) that there is aproduction of Clorg in tissues of, e.g. plants and animals and that Cl can accumulate as, e.g. chlorinated fatty acids in organisms.Yet, data focusing on ecosystem perspectives and combined spatiotemporal variability regarding various Cl pools are still scarce,and the processes and ecological roles of the extensive biological Cl cycling are still poorly understood.

Place, publisher, year, edition, pages
Springer, 2021
Keywords
Chlorine biogeochemical cycle, chloride, chlorinated organic compounds, organochlorines, organohalogens, soil, 36Cl, AOX, shloroform, methyl chloride, hydrological tracer, Klors biogeokemiska cykel, klorid, kloroorganiska föreningar, organohalogener, mark, 36Cl, AOX, kloroform, metylklorid, spårämne
National Category
Environmental Sciences Geosciences, Multidisciplinary Soil Science Forest Science Ecology Food Science
Identifiers
urn:nbn:se:liu:diva-172292 (URN)10.1007/s11356-020-12144-6 (DOI)000605128900008 ()
Funder
Swedish Nuclear Fuel and Waste Management Company, SKB
Note

Funding agencies:Linkoping University; Swedish Nuclear Fuel and Waste Management Co (SKB)

Available from: 2021-01-05 Created: 2021-01-05 Last updated: 2022-03-14Bibliographically approved
Haji, M., Nkedi-Kizza, P., Kishimba, M. & Kylin, H. (2020). Adsorption-desorption of chlorpyrifos in soilsand sediments from the Rufiji Delta, Tanzania. Western Indian Ocean Journal of Marine Science, 19(1), 77-97
Open this publication in new window or tab >>Adsorption-desorption of chlorpyrifos in soilsand sediments from the Rufiji Delta, Tanzania
2020 (English)In: Western Indian Ocean Journal of Marine Science, ISSN 0856-860X, E-ISSN 2683-6416, Vol. 19, no 1, p. 77-97Article in journal (Refereed) Published
Abstract [en]

Batch adsorption-desorption equilibrium techniques were used to investigate the adsorption capacity and influenceof salinity on partitioning of the insecticide chlorpyrifos between water and soil or water and sediments from theRufiji Delta. The data were fitted to different adsorption-desorption models and the hysteresis index was calculatedusing the ratio between the Freundlich exponents for desorption and adsorption, and secondly, the differencein area under the normalized adsorption and desorption isotherms using the maximum adsorbed and solutionconcentrations. The data showed non-linear adsorption and that chlorpyrifos was strongly adsorbed to soil andsediments from the Rufiji Delta. The linearized adsorption coefficient (KD) and Freundlich adsorption coefficient(Kf) correlated significantly with organic carbon content. Chlorpyrifos adsorption as well as hysteresis calculated byboth methods decreased with salinity (i.e. the sediment adsorbs increasing amounts of chlorpyrifos with decreasingsalinity). This indicates that settling of freshwater sediments is among the major removal pathways of the chemicalfrom the water column, but increased turbulence during high tides may resuspend settled sediment simultaneouslyincreasing salinity and re-dissolve chlorpyrifos. However, discharge of fresh water, particularly during heavy rains,increases the trapping efficiency of the sediments. The theoretical approach developed showed that the Langmuirmodel describes the desorption data better than the Freundlich model, and that a better index of hysteresis is onethat considers areas under the adsorption and desorption isotherms, provided the desorption isotherm is describedby the normalized Langmuir isotherm and the adsorption isotherm by the normalized Freundlich isotherm.

Place, publisher, year, edition, pages
Western Indian Ocean Marine Science Association (WIOMSA), 2020
Keywords
Sorption, pesticides, delta environment, salinity
National Category
Oceanography, Hydrology and Water Resources Geochemistry Environmental Sciences Ecology
Identifiers
urn:nbn:se:liu:diva-171072 (URN)10.4314/wiojms.v19i1.7 (DOI)
Available from: 2020-11-02 Created: 2020-11-02 Last updated: 2022-12-09Bibliographically approved
Uren, R., van der Lingen, C., Kylin, H. & Bouwman, H. (2020). Concentrations and relative compositions of metallic elements differ between predatory squid and filter-feeding sardine from the Indian and South Atlantic oceans. Regional Studies in Marine Science, 35, Article ID 101137.
Open this publication in new window or tab >>Concentrations and relative compositions of metallic elements differ between predatory squid and filter-feeding sardine from the Indian and South Atlantic oceans
2020 (English)In: Regional Studies in Marine Science, E-ISSN 2352-4855, Vol. 35, article id 101137Article in journal (Refereed) Published
Abstract [en]

Although metallic elements occur naturally, they can occur or accumulate in organisms at levels toxic to the organism and/or their consumers. Concentrations of twenty-nine metallic elements in muscle tissue from sardine Sardinops sagax and chokka squid Loligo reynaudii from South Atlantic and Indian Ocean waters off South Africa were established, for the first time, using inductively-coupled plasma mass spectrometry. Chokka showed significantly higher (p < 0.05) concentrations of B, Cr, Zn, As, Se, Rb, Sr, Cd, and Tl and significantly lower concentrations of V, Mn, Ti, and Mo compared to sardine. There were also significant differences in some metallic elements between the two oceans. Multivariate analyses indicated possible population structure of both species, suggesting that these analyses may be useful as a stock discrimination tool. Only two sardine samples contained quantifiable Hg. Based on South African estimated daily intake, total hazard quotient, and European Union limits for Hg, Cd, and Pb, we consider tissues from sardine and chokka in South African waters to be safe for human consumption.

Place, publisher, year, edition, pages
Koenigstein, Germany: Koeltz Scientific Books, 2020
Keywords
Ecotoxicology, heavy metals
National Category
Environmental Sciences Oceanography, Hydrology and Water Resources Ecology Geochemistry
Identifiers
urn:nbn:se:liu:diva-163558 (URN)10.1016/j.rsma.2020.101137 (DOI)000525758600020 ()
Note

Funding agencies: National Research Foundation (NRF) of South AfricaNational Research Foundation - South Africa

Available from: 2020-02-13 Created: 2020-02-13 Last updated: 2023-06-02Bibliographically approved
van der Schyff, V., du Preez, M., Blom, K., Kylin, H., Choong Kwet Yive, N. S., Merven, J., . . . Bouwman, H. (2020). Impacts of a shallow shipwreck on a coral reef: A case study from St. Brandon’s Atoll, Mauritius, Indian Ocean.. Marine Environmental Research, 156, Article ID 104916.
Open this publication in new window or tab >>Impacts of a shallow shipwreck on a coral reef: A case study from St. Brandon’s Atoll, Mauritius, Indian Ocean.
Show others...
2020 (English)In: Marine Environmental Research, ISSN 0141-1136, E-ISSN 1879-0291, Vol. 156, article id 104916Article in journal (Refereed) Published
Abstract [en]

Shallow shipwrecks can have severe ecological and toxicological impacts on coral atolls. In 2012, a tuna longliner ran aground on the reef crest of St Brandon’s Atoll, Mauritius, broke up into three pieces which was moved by currents and storms into the lagoon. In the months following the grounding, the coral around the wreck became dead and black. Down-current from the wreck, a dense bloom of filamentous algae (Ulva sp.) attached to coral occurred. To determine the ecological effects of the wreck on the system, the marine biota around the wreck, in the algal bloom, and fish reference zones were counted in 2014. Metal concentrations in reference and affected coral was determined using inductively coupled plasma mass spectrometry (ICP/MS). A pronounced difference was seen in the metal concentration pattern between coral from the wreck- and algal zones, and the coral reference zone. While the wreck zone contained the highest abundance of fish, the fish reference zone had the highest species diversity but with fewer fish. We also counted eleven Critically Endangered hawksbill sea turtles Eretmochelys imbricata and significantly more sea cucumbers in the algal zone than the reference zones. The effects of shipwrecks on coral reefs must be considered a threat over periods of years and should be studied further.

Keywords
algal bloom, black reefs, coral, ecotoxicology, fish, sea cucumbers
National Category
Environmental Sciences Oceanography, Hydrology and Water Resources Ecology
Identifiers
urn:nbn:se:liu:diva-163697 (URN)10.1016/j.marenvres.2020.104916 (DOI)000528612000002 ()32174336 (PubMedID)
Note

Funding agencies: South African Regional Cooperation Fund for Scientific Research and Technological Development [65290]; Chemical Industries Education & Training Authority (CHIETA)

Available from: 2020-02-18 Created: 2020-02-18 Last updated: 2022-02-08Bibliographically approved
Kylin, H. (2020). Liten men udda. Fauna och flora : populär tidskrift för biologi (1), 37-37
Open this publication in new window or tab >>Liten men udda
2020 (Swedish)In: Fauna och flora : populär tidskrift för biologi, ISSN 0014-8903, no 1, p. 37-37Article in journal (Other (popular science, discussion, etc.)) Published
Place, publisher, year, edition, pages
Sveriges Lantbruksuniversitet, 2020
Keywords
Liten blåklocka, Campanula rotundifolia
National Category
Ecology
Identifiers
urn:nbn:se:liu:diva-164310 (URN)
Available from: 2020-03-16 Created: 2020-03-16 Last updated: 2021-09-09Bibliographically approved
Kylin, H. (2020). Marine debris on two Arctic beaches in the Russian Far East. Polar Research, 39, Article ID 3381.
Open this publication in new window or tab >>Marine debris on two Arctic beaches in the Russian Far East
2020 (English)In: Polar Research, ISSN 0800-0395, E-ISSN 1751-8369, Vol. 39, article id 3381Article in journal (Refereed) Published
Abstract [en]

In August 2005, marine debris was counted on two Arctic beaches in the RussianFar East. On the north coast of the Chukchi Peninsula east of Kolyuchin Bay,a beach stretch of ca. 2.4 km held a total of 736 items, 0.024 items m‑2, while nomore than 0.0011 items m‑2, 12 items in total, were found on a beach stretch ofca. 1.2 km on southern Wrangel Island. The likely explanation for this differenceis that the area around the mainland beach is ice-free for a longer period each year, but a contributing factor may be that late spring ice movement removed plastic from the beach on Wrangel Island. The language on the few items with identifiable labels was for the most part Russian or English, making the Chukchi Sea a possible source region. Beaches at the same latitude in the Atlantic mayhold more debris on  account of the higher human population density, moreshipping and transport of floating debris unhindered by a narrow strait that isice-covered much of the year. Fishing gear blown across the tundra is suggestedas a potential threat to reindeer and other terrestrial wildlife.

Place, publisher, year, edition, pages
Jaerfaella, Sweden: Co-Action Publishing, 2020
Keywords
Plastic debris, Chukchi Sea, Chukchi Peninsula, Kolyuchin Bay, Wrangel Island, pollution
National Category
Environmental Sciences Oceanography, Hydrology and Water Resources Ecology
Identifiers
urn:nbn:se:liu:diva-166368 (URN)10.33265/polar.v39.3381 (DOI)000541006300001 ()
Available from: 2020-06-11 Created: 2020-06-11 Last updated: 2020-07-01Bibliographically approved
Nantaba, F., Wasswa, J., Kylin, H., Palm, W.-U., Bouwman, H. & Kümmerer, K. (2020). Occurrence, distribution, and ecotoxicological risk assessment of selected pharmaceutical compounds in water from Lake Victoria, Uganda. Chemosphere, 239, Article ID 124642.
Open this publication in new window or tab >>Occurrence, distribution, and ecotoxicological risk assessment of selected pharmaceutical compounds in water from Lake Victoria, Uganda
Show others...
2020 (English)In: Chemosphere, ISSN 0045-6535, E-ISSN 1879-1298, Vol. 239, article id 124642Article in journal (Refereed) Published
Abstract [en]

The occurrence of 24 pharmaceuticals (including; 15 antibiotics, three analgesic/anti-inflammatory drugs, three anti-epileptic/ antidepressant drugs, two beta blockers, and one lipid regulator) was investigated in 75 water samples collected from four bays in the Ugandan part of Lake Victoria. In addition, the potential environmental risk of the target pharmaceutical compounds to aquatic organisms in the aquatic ecosystem of Lake Victoria was assessed. Water samples were extracted using solid phase extraction and analyzed for pharmaceuticals using high- performance liquid chromatography coupled with triple quadrupole mass spectrometry (LC/MS/MS). Eighteen of the 24 pharmaceuticals occurred at quantifiable concentrations. Sulfamethoxazole (1-5600 ng L-1), trimethoprim (1-89 ng L-1), tetracycline (3-70 ng L-1), sulfacetamide (1-13 ng L-1), and ibuprofen (6-780 ng L-1) occurred at quantifiable concentrations in all water samples. Sulfamethazine (2-50 ng L-1), erythromycin (10-66 ng L-1), diclofenac (2-160 ng L-1), and carbamazepine (5-72 ng L-1) were only quantifiable in water samples from Murchison Bay. The highest concentrations of pharmaceuticals were found in Murchison Bay, the main recipient of sewage effluents, industrial and municipal waste from Kampala city via the Nakivubo channel. Ecotoxicological risk assessment showed that sulfamethoxazole, oxytetracycline, erythromycin, and diclofenac pose a high toxic risk to aquatic organisms in the lake, while ciprofloxacin, norfloxacin, and ibuprofen pose a medium risk. This study is the first of its kind to report the levels and ecotoxic risks of pharmaceutical compounds in Lake Victoria waters, of Uganda, and East Africa as a whole.

Place, publisher, year, edition, pages
Elsevier, 2020
Keywords
Pharmaceuticals, risk assessment, surface water, East Africa
National Category
Environmental Sciences Oceanography, Hydrology and Water Resources Other Chemistry Topics Other Biological Topics
Identifiers
urn:nbn:se:liu:diva-161909 (URN)10.1016/j.chemosphere.2019.124642 (DOI)000498305500029 ()31521936 (PubMedID)2-s2.0-85072025185 (Scopus ID)
Note

Funding agencies: International Programme in Chemical Sciences (IPICS) under the International Science Programme (ISP), Uppsala University, Sweden [UGA 01]; German Academic Exchange Service (Deutscher Akademischer Austauschdienst, DAAD)Deutscher Akademischer Austausch Dien

Available from: 2019-11-12 Created: 2019-11-12 Last updated: 2021-08-26Bibliographically approved
Mwevura, H., Bouwman, H., Kylin, H., Vogt, T. & Issa, M. (2020). Organochlorine pesticides and polycyclic aromatic hydrocarbons in marine sediments and polychaete worms from the west coast of Unguja island, Tanzania. Regional Studies in Marine Science, 36, Article ID 101287.
Open this publication in new window or tab >>Organochlorine pesticides and polycyclic aromatic hydrocarbons in marine sediments and polychaete worms from the west coast of Unguja island, Tanzania
Show others...
2020 (English)In: Regional Studies in Marine Science, E-ISSN 2352-4855, Vol. 36, article id 101287Article in journal (Refereed) Published
Abstract [en]

The coastal areas of Stone Town, on the island of Unguja that is part of Zanzibar, are subjected to different anthropogenic activities and receive untreated municipal wastes that are likely to carry organic pollutants that can bio-accumulate in marine organisms. Sediments and polychaete worms Capitella capitata collected from coastal sites north and south of Stone Town were analysed for organochlorine pesticides (OCPs) and polycyclic aromatic hydrocarbons (PAHs) using GC-MS to assess their pollution status in the coastal environment and uptake by the food web. The analysis revealed quantifiable concentrations of DDTs, cyclodienes, and HCHs, and six of the 11 USEPA-priority PAHs. The concentration ranges of ΣOCPs were 0.1–100 ng/g dm (dry mass) and 8.5–96 ng/g lm (lipid mass) in sediments and worms, respectively. The concentrations of ΣPAHs6 ranged from non-detectable to 27 ng/g dm in sediments and non-detectable to 18 ng/g lm (lipid mass) in worms. Malindi harbour was the most contaminated of all sites with respect to the pollutants we measured in both sediments and worms. The relative compositions of the OCPs suggest legacy use of DDT and technical HCH, and more recent use of lindane. The relatively higher proportion of low molecular mass PAHs to high molecular mass PAHs suggests major contributions from petrogenic sources in the study area. The results demonstrated bioavailability and uptake of OCPs and PAHs to the food web via C. capitata. Concentrations of DDTs, HCHs, and dieldrin exceed sediment quality guidelines, indicating risk to sediment-dwelling organisms, as well as organisms that eat them. It is likely that other toxic compounds are present, suggesting that the current assessment may underestimate the risk. Due to the indicated risk, further work is needed to look at coastal distributions, terrestrial concentrations, and accumulation of pollutants into higher trophic level organisms of Zanzibar and associated seas.

Place, publisher, year, edition, pages
Elsevier, 2020
Keywords
Indian Ocean; pollution; sediment; polychaetes; PAHs; organochlorine pesticides
National Category
Environmental Sciences Oceanography, Hydrology and Water Resources Ecology
Identifiers
urn:nbn:se:liu:diva-165295 (URN)10.1016/j.rsma.2020.101287 (DOI)000562971000003 ()2-s2.0-85083275360 (Scopus ID)
Note

Funding agencies: Building Stronger University (BSU-II) programme of the State University of Zanzibar, Tanzania; Western Indian Ocean Marine Science Association (WIOMSA), Tanzania through a MARG II programme

Available from: 2020-04-24 Created: 2020-04-24 Last updated: 2023-06-02Bibliographically approved
Kylin, H. (2020). Sniglarnas playboyklubb. Fauna och flora : populär tidskrift för biologi (1), 37-37
Open this publication in new window or tab >>Sniglarnas playboyklubb
2020 (Swedish)In: Fauna och flora : populär tidskrift för biologi, ISSN 0014-8903, no 1, p. 37-37Article in journal (Other (popular science, discussion, etc.)) Published
Place, publisher, year, edition, pages
Sveriges Lantbruksuniversitet, 2020
Keywords
Snigelspår
National Category
Ecology
Identifiers
urn:nbn:se:liu:diva-164311 (URN)
Available from: 2020-03-16 Created: 2020-03-16 Last updated: 2021-09-09Bibliographically approved
Kylin, H. (2020). Spännande spindel!. Fauna och flora : populär tidskrift för biologi, 115(2), 54
Open this publication in new window or tab >>Spännande spindel!
2020 (Swedish)In: Fauna och flora : populär tidskrift för biologi, ISSN 0014-8903, Vol. 115, no 2, p. 54-Article in journal (Other (popular science, discussion, etc.)) Published
Place, publisher, year, edition, pages
Naturcentrum AB, 2020
Keywords
Tropiska lockespindlar, armoured harvestmen
National Category
Zoology
Identifiers
urn:nbn:se:liu:diva-171075 (URN)
Available from: 2020-11-02 Created: 2020-11-02 Last updated: 2021-09-22Bibliographically approved
Organisations
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0002-5972-1852

Search in DiVA

Show all publications