Regional Contamination History Revealed in Coal-Mining-Impacted Oxbow Lake Sediments

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F20%3A73604134" target="_blank" >RIV/61989592:15310/20:73604134 - isvavai.cz</a>

Výsledek na webu

<a href="https://link.springer.com/article/10.1007/s11270-020-04583-1" target="_blank" >https://link.springer.com/article/10.1007/s11270-020-04583-1</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11270-020-04583-1" target="_blank" >10.1007/s11270-020-04583-1</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Regional Contamination History Revealed in Coal-Mining-Impacted Oxbow Lake Sediments

Popis výsledku v původním jazyce

The aim of this study is to investigate complex pollution history and spatial trends of pollution (heavy metals and organic pollutants) in the selected oxbow lake (at the border between the Czech Republic and Poland) along the Odra River, located in the heavily polluted Ostrava urban agglomeration. Contaminant distribution is affected by position in the lake; the highest heavy metal concentrations were found in the central parts. Depth trends in 137Cs mass activity, hexachlorobenzene, and DDT metabolites were used as additional date levels. Depth profiles of heavy metals and their enrichment factors and multi-proxy stratigraphic analysis allowed two stages of oxbow lake evolution to be recognized. The initial stage was characterized by higher sediment accumulation rates in the whole oxbow lake, while during the second stage, sediment was deposited in a plug bar and in proximal parts of the lake, providing a more complete pollution record. Coal-rich layers were found in the deeper parts of the sedimentary record, related to coal mining activities. Samples rich in coal revealed a negative correlation with CIEL* (brightness) and conversely a positive correlation with specific biomarkers (homo hopanes and 16 α(H)- phyllocladane) and PAHs (secondary sorption to coalrich strata). The sedimentary record since the oxbow lake cut-off event in 1966 showed a distinct vertical distribution of all pollutants. Maximum concentrations were attained during 1970s and 1980s, while a decreasing trend occurred after 1989 due to political and socioeconomical changes in the former Czechoslovakia (now the Czech Republic).

Název v anglickém jazyce

Regional Contamination History Revealed in Coal-Mining-Impacted Oxbow Lake Sediments

Popis výsledku anglicky

The aim of this study is to investigate complex pollution history and spatial trends of pollution (heavy metals and organic pollutants) in the selected oxbow lake (at the border between the Czech Republic and Poland) along the Odra River, located in the heavily polluted Ostrava urban agglomeration. Contaminant distribution is affected by position in the lake; the highest heavy metal concentrations were found in the central parts. Depth trends in 137Cs mass activity, hexachlorobenzene, and DDT metabolites were used as additional date levels. Depth profiles of heavy metals and their enrichment factors and multi-proxy stratigraphic analysis allowed two stages of oxbow lake evolution to be recognized. The initial stage was characterized by higher sediment accumulation rates in the whole oxbow lake, while during the second stage, sediment was deposited in a plug bar and in proximal parts of the lake, providing a more complete pollution record. Coal-rich layers were found in the deeper parts of the sedimentary record, related to coal mining activities. Samples rich in coal revealed a negative correlation with CIEL* (brightness) and conversely a positive correlation with specific biomarkers (homo hopanes and 16 α(H)- phyllocladane) and PAHs (secondary sorption to coalrich strata). The sedimentary record since the oxbow lake cut-off event in 1966 showed a distinct vertical distribution of all pollutants. Maximum concentrations were attained during 1970s and 1980s, while a decreasing trend occurred after 1989 due to political and socioeconomical changes in the former Czechoslovakia (now the Czech Republic).

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10511 - Environmental sciences (social aspects to be 5.7)

Projekt

<a href="/cs/project/GA17-06229S" target="_blank" >GA17-06229S: Vývoj sedimentace v přehradních nádržích jako antropogenních bariérách v říčních systémech: od materiálové bilance po osud polutantů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

WATER AIR AND SOIL POLLUTION

ISSN

0049-6979

e-ISSN

—

Svazek periodika

231

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

22

Strana od-do

208

Kód UT WoS článku

000529972900001

EID výsledku v databázi Scopus

2-s2.0-85083823175