A decision framework for possible remediation of contaminated sediments in the River Kymijoki, Finland

Verta, Matti; Kiviranta, Hannu; Salo, Seppo; Malve, Olli; Korhonen, Markku; Verkasalo, Pia K.; Ruokojärvi, Päivi; Rossi, Eliandra Mirlei; Hanski, Ari; Päätalo, Kare; Vartiainen, Terttu

doi:10.1007/s11356-008-0061-9

Cited by 35 publications

(19 citation statements)

References 21 publications

(31 reference statements)

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“…In the present study, the most abundant PCDD/F-congeners were OCDF and 1,2,3,4,6,7,8-HpCDF, the latter being impurity of the previous manufacture of wood-preservative (Ky-5), and the most common congener in R. Kymijoki sediments also in the studies of Salo et al (2008) and Verta et al (2009).…”

Section: Discussionsupporting

confidence: 54%

“…Pollution history (PCDD/Fs, PCBs, Hg) and gradients in the R. Kymijoki are described by Salo et al (2008) and Verta et al (2009). Surface sediment samples were collected in two replicates from six sites, Kuusaansaari (sample codes 1A and 1B), Keltti (2A, 2B), Lopotti (3A, 3B), Koskenalusjärvi (4A, 4B), Ahvionkoski (5A, 5B) and Kyminlinna (6A, 6B) along a longitudinal contamination gradient in R. Kymijoki, and from one site in R. Urpalanjoki (7A, 7B) in July 2012 (Fig.…”

Section: The Study Sedimentsmentioning

confidence: 99%

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Biological responses of midge (Chironomus riparius) and lamprey (Lampetra fluviatilis) larvae in ecotoxicity assessment of PCDD/F-, PCB- and Hg-contaminated river sediments

Salmelin

Karjalainen

Hämäläinen

et al. 2016

Environ Sci Pollut Res

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. (2016). Biological responses of midge (Chironomus riparius) and lamprey (Lampetra fluviatilis) larvae in ecotoxicity assessment of PCDD/F-, PCB-and Hg-contaminated river sediments. Environmental Science and Pollution Research, 23 (18), 18379-18393. doi:10.1007/s11356-016-7014-5 Abstract We evaluated utility of chironomid and lamprey larval responses in ecotoxicity assessment of polychlorinated dibenzo-p-dioxins, dibenzofurans (PCDD/F)-, polychlorinated biphenyls (PCB)-and mercury (Hg)-contaminated river sediments. Sediment samples were collected from the River Kymijoki with a known industrial pollution gradient. Sediment for the controls, and lamprey larvae were obtained from an uncontaminated river nearby. Contamination levels were verified with sediment and tissue PCDD/F, PCB and Hg analyses. Behaviour of sediment exposed chironomid and lamprey larvae were measured with Multispecies Freshwater Biomonitor© utilizing quadrupole impedance conversion technique. In addition, mortality, growth and head capsule deformity incidence of chironomids were used as ecotoxicity indicators. WHO PCDD/F+PCB -TEQ in the R. Kymijoki sediments ranged from the highest upstream 22.36 ng g -1 dw to the lowest 1.50 ng g -1 near the river mouth. Sum of PCDD/Fs and PCBs correlated strongly with Hg sediment concentrations, which ranged from <0.01 to 1.15 µg g -1 . Lamprey tissue concentrations of PCDD/Fs were two orders and PCBs one order of magnitude higher in the R. Kymijoki compared to the reference. Chironomid growth decreased in contaminated sediments, and was negatively related to sediment ∑PCDD/Fs, WHO PCDD/F+PCB -TEQ and Hg. There were no significant differences in larval mortality or chironomid mentum deformity incidence between the sediment exposures. The distinct behavioural patterns of both species indicate overall applicability of behavioural MFB measurements of these species in sediment toxicity bioassays. Chironomids spent less and lampreys more time in locomotion in the most contaminated sediment compared to the reference, albeit statistically significant differences were not detected. Lamprey larvae had also a greater activity range in some of the contaminated sediments than in the reference. High pollutant levels in lamprey indicate risks for biomagnification in the food webs, with potential health risks to humans consuming fish.Keywords: polychlorinated dibenzo-p-dioxins and -furans; polychlorinated biphenyls; mercury; sediment toxicity; Chironomus riparius; Lampetra fluviatilis; behaviour AcknowledgementsWe thank Tino Hovinen (University of Jyväskylä) and Rauni Kauppinen (Finnish Environment Institute) for their valuable help in the field and laboratory, and researchers in the National Institute of Health and Welfare for PCDD/F and PCB analyses. We would also like to thank Kymijoen vesi ja ympäristö ry for cooperation. This study was funded by TEKES, the Finnish Funding Agency for Technology and Innovation (#40255/11).

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Section: Discussionsupporting

confidence: 54%

Section: The Study Sedimentsmentioning

confidence: 99%

Biological responses of midge (Chironomus riparius) and lamprey (Lampetra fluviatilis) larvae in ecotoxicity assessment of PCDD/F-, PCB- and Hg-contaminated river sediments

Salmelin

Karjalainen

Hämäläinen

et al. 2016

Environ Sci Pollut Res

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“…Verta et al (2009) reported that more than 30 tons of mercury was emitted to the River Kymijoki between the 1940'ies and 1971, which has been shown in many studies from the Gulf of Finland (Kokko, Turunen 1988;Vallius 2012). The concentrations of Hg in the sediments of the contaminated north-eastern part of the Gulf of Finland are very high.…”

Section: Spatial Distribution Of the Studied Elementsmentioning

confidence: 93%

Heavy metals in sediments of the Gulf of Finland : a review

Emelyanov¹,

Vallius²,

Kravtsov³

2017

Baltica

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The Gulf of Finland has during the last centuries been loaded with heavy metals of anthropogenic origin. Work with mapping of the chemistry of the sediments have been done in all surrounding countries during several decades, first in the Soviet Union and later in Russia and similarly in Finland. More recent sediment chemistry data from the last two decades was in this study combined into sediment chemistry maps added with some data from the commercial Nord Stream project. The result shows that zinc, copper and chromium are enriched in the eastern part of the Gulf of Finland, while mercury, cadmium and lead are showing the highest concentrations in the north-eastern part of the gulf.

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“…Verta et al (2009) reported that more than 30 tons of mercury were emitted into the River Kymijoki between the 1940s and 1971.…”

Section: Horizontal Distributionmentioning

confidence: 99%

Arsenic and heavy metal distribution in the bottom sediments of the Gulf of Finland through the last decades

Vallius

2012

Baltica

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Arsenic and heavy metal distribution in the bottom sediments of the Gulf of Finland through the last decades Henry ValliusVallius, H., 2012. Arsenic and heavy metal distribution in the bottom sediments of the Gulf of Finland through the last decades. Baltica, 25 (1), 23-32. Vilnius. ISSN 0067-3064.Abstract The Gulf of Finland is known to have been under rather hard stress from the anthropogenic loading of harmful substances for many decades. The emissions are known to have decreased slightly during the last two decades, but can that decrease be seen also in the sea floor sediments? In this study, heavy metal data from the early 1990s are compared with new research data from [2007][2008][2009]. Concentrations of most metals have decreased in the sea floor sediments through the last one and one-half decade. The situation is improving in general despite a drawback on cadmium; those concentrations have remained at levels much too high, with virtually no decrease in trend through the years. Lead and mercury on the other hand seem to have decreased even more than expected, which is a very good sign, given the harmfulness of these metals.

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A decision framework for possible remediation of contaminated sediments in the River Kymijoki, Finland

Cited by 35 publications

References 21 publications

Biological responses of midge (Chironomus riparius) and lamprey (Lampetra fluviatilis) larvae in ecotoxicity assessment of PCDD/F-, PCB- and Hg-contaminated river sediments

Biological responses of midge (Chironomus riparius) and lamprey (Lampetra fluviatilis) larvae in ecotoxicity assessment of PCDD/F-, PCB- and Hg-contaminated river sediments

Heavy metals in sediments of the Gulf of Finland : a review

Arsenic and heavy metal distribution in the bottom sediments of the Gulf of Finland through the last decades

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