Laboratory Melting of Late-Winter Urban Snow Samples : The Magnitude and Dynamics of Releases of Heavy Metals and PAHs
Laboratory snow melting experiments were conducted with actual late-winter snow samples, collected just before the final snowmelt, in two similar northern Swedish cities, Luleå and Umeå, to investigate releases of the selected heavy metals (HM) (Cu, Pb, Zn, and Cd) and 16 USEPA PAHs from melting sno...
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Luleå tekniska universitet, Arkitektur och vatten
2019
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Online Access: | http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-75595 https://doi.org/10.1007/s11270-019-4201-2 |
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ftluleatu:oai:DiVA.org:ltu-75595 2023-05-15T17:09:01+02:00 Laboratory Melting of Late-Winter Urban Snow Samples : The Magnitude and Dynamics of Releases of Heavy Metals and PAHs Vijayan, Arya Österlund, Helene Marsalek, Jiri Viklander, Maria 2019 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-75595 https://doi.org/10.1007/s11270-019-4201-2 eng eng Luleå tekniska universitet, Arkitektur och vatten Water, Air and Soil Pollution, 0049-6979, 2019, 230:8, http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-75595 doi:10.1007/s11270-019-4201-2 ISI:000477606600002 Scopus 2-s2.0-85069681181 info:eu-repo/semantics/openAccess PAHs Road salt Sediment Snowmelt Truly dissolved metals Urban late-winter snow Water Engineering Vattenteknik Article in journal info:eu-repo/semantics/article text 2019 ftluleatu https://doi.org/10.1007/s11270-019-4201-2 2022-10-25T20:57:24Z Laboratory snow melting experiments were conducted with actual late-winter snow samples, collected just before the final snowmelt, in two similar northern Swedish cities, Luleå and Umeå, to investigate releases of the selected heavy metals (HM) (Cu, Pb, Zn, and Cd) and 16 USEPA PAHs from melting snow. Metal concentrations were determined in three fractions: total, dissolved, and truly dissolved (defined as the fraction passing through a 3-kMWCO ultrafilter). Total HM concentrations in snowmelt were rather high at both sites and reflected the accumulation of pollutants in the roadside snowbanks over a period of about 5 months: Cd = 0.43, Cu = 303, Pb = 41.9, Zn = 817 (μg/l), and TSS = 2000 (mg/l) in Luleå samples and Cd = 1.87, Cu = 905, Pb = 165, Zn = 3150 (μg/l), and TSS = 4800 (mg/l) in Umeå samples. The difference between metal and TSS concentrations at the two sites of similar characteristics was attributed to a smaller volume snowbank in Umeå. The dissolved HM concentrations represented relatively small fractions of the total concentrations (0.3–6.9% in Luleå and 0.01–3.1% in Umeå). The truly dissolved fraction represented 71–90% of the dissolved fraction in Luleå and 74–98% in Umeå. At both sites, the dissolved fractions exhibited preferential elution from the laboratory snow piles. The PAHs studied (16 US EPA PAHs) were mostly particulate bound, with only 5–12% of the total burden contributed by the meltwater, and most dissolved concentrations below the reporting limits. PAH concentrations in the Luleå samples were about one-third to one-fourth of those in Umeå. In general, the releases of PAHs from the snowbank were delayed, compared with releases of meltwater, and showed similar release patterns as TSS. Validerad;2019;Nivå 2;2019-08-20 (johcin) Article in Journal/Newspaper Luleå Luleå Luleå Luleå University of Technology Publications (DiVA) Water, Air, & Soil Pollution 230 8 |
institution |
Open Polar |
collection |
Luleå University of Technology Publications (DiVA) |
op_collection_id |
ftluleatu |
language |
English |
topic |
PAHs Road salt Sediment Snowmelt Truly dissolved metals Urban late-winter snow Water Engineering Vattenteknik |
spellingShingle |
PAHs Road salt Sediment Snowmelt Truly dissolved metals Urban late-winter snow Water Engineering Vattenteknik Vijayan, Arya Österlund, Helene Marsalek, Jiri Viklander, Maria Laboratory Melting of Late-Winter Urban Snow Samples : The Magnitude and Dynamics of Releases of Heavy Metals and PAHs |
topic_facet |
PAHs Road salt Sediment Snowmelt Truly dissolved metals Urban late-winter snow Water Engineering Vattenteknik |
description |
Laboratory snow melting experiments were conducted with actual late-winter snow samples, collected just before the final snowmelt, in two similar northern Swedish cities, Luleå and Umeå, to investigate releases of the selected heavy metals (HM) (Cu, Pb, Zn, and Cd) and 16 USEPA PAHs from melting snow. Metal concentrations were determined in three fractions: total, dissolved, and truly dissolved (defined as the fraction passing through a 3-kMWCO ultrafilter). Total HM concentrations in snowmelt were rather high at both sites and reflected the accumulation of pollutants in the roadside snowbanks over a period of about 5 months: Cd = 0.43, Cu = 303, Pb = 41.9, Zn = 817 (μg/l), and TSS = 2000 (mg/l) in Luleå samples and Cd = 1.87, Cu = 905, Pb = 165, Zn = 3150 (μg/l), and TSS = 4800 (mg/l) in Umeå samples. The difference between metal and TSS concentrations at the two sites of similar characteristics was attributed to a smaller volume snowbank in Umeå. The dissolved HM concentrations represented relatively small fractions of the total concentrations (0.3–6.9% in Luleå and 0.01–3.1% in Umeå). The truly dissolved fraction represented 71–90% of the dissolved fraction in Luleå and 74–98% in Umeå. At both sites, the dissolved fractions exhibited preferential elution from the laboratory snow piles. The PAHs studied (16 US EPA PAHs) were mostly particulate bound, with only 5–12% of the total burden contributed by the meltwater, and most dissolved concentrations below the reporting limits. PAH concentrations in the Luleå samples were about one-third to one-fourth of those in Umeå. In general, the releases of PAHs from the snowbank were delayed, compared with releases of meltwater, and showed similar release patterns as TSS. Validerad;2019;Nivå 2;2019-08-20 (johcin) |
format |
Article in Journal/Newspaper |
author |
Vijayan, Arya Österlund, Helene Marsalek, Jiri Viklander, Maria |
author_facet |
Vijayan, Arya Österlund, Helene Marsalek, Jiri Viklander, Maria |
author_sort |
Vijayan, Arya |
title |
Laboratory Melting of Late-Winter Urban Snow Samples : The Magnitude and Dynamics of Releases of Heavy Metals and PAHs |
title_short |
Laboratory Melting of Late-Winter Urban Snow Samples : The Magnitude and Dynamics of Releases of Heavy Metals and PAHs |
title_full |
Laboratory Melting of Late-Winter Urban Snow Samples : The Magnitude and Dynamics of Releases of Heavy Metals and PAHs |
title_fullStr |
Laboratory Melting of Late-Winter Urban Snow Samples : The Magnitude and Dynamics of Releases of Heavy Metals and PAHs |
title_full_unstemmed |
Laboratory Melting of Late-Winter Urban Snow Samples : The Magnitude and Dynamics of Releases of Heavy Metals and PAHs |
title_sort |
laboratory melting of late-winter urban snow samples : the magnitude and dynamics of releases of heavy metals and pahs |
publisher |
Luleå tekniska universitet, Arkitektur och vatten |
publishDate |
2019 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-75595 https://doi.org/10.1007/s11270-019-4201-2 |
genre |
Luleå Luleå Luleå |
genre_facet |
Luleå Luleå Luleå |
op_relation |
Water, Air and Soil Pollution, 0049-6979, 2019, 230:8, http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-75595 doi:10.1007/s11270-019-4201-2 ISI:000477606600002 Scopus 2-s2.0-85069681181 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1007/s11270-019-4201-2 |
container_title |
Water, Air, & Soil Pollution |
container_volume |
230 |
container_issue |
8 |
_version_ |
1766064966536790016 |