The Fate of Atmospherically Derived Pb in Central European Catchments: Insights from Spatial and Temporal Pollution Gradients and Pb Isotope Ratios

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F14%3A00000299" target="_blank" >RIV/00025798:_____/14:00000299 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/67179843:_____/14:00433722 RIV/67985556:_____/14:00433722

Výsledek na webu

<a href="http://pubs.acs.org/doi/full/10.1021/es500393z" target="_blank" >http://pubs.acs.org/doi/full/10.1021/es500393z</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/es500393z" target="_blank" >10.1021/es500393z</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The Fate of Atmospherically Derived Pb in Central European Catchments: Insights from Spatial and Temporal Pollution Gradients and Pb Isotope Ratios

Popis výsledku v původním jazyce

Soils in polluted regions are generally regarded as a delayed, long-lasting source for Pb contamination of aquatic systems. Lead deposited on topsoil is slowly transported downward with particulate and colloidal organic matter, driven by infiltrating precipitation. Then, Pb is tightly retained in mineral soil. Lead export from catchments is extremely low and de-coupled from the atmospheric input. We tested this hypothesis in 11 small catchments, differing in pollution levels. Input/ouput Pb fluxes weremonitored for 14-15 years in an era of decreasing industrial Pb emission rates. Between 1996/1997 and 2010, Pb deposition fluxes decreased significantly, on average by 80 %. At the beginning of the monitoring, Pb export constituted 2 to 58 % of Pb input.At the end of the monitoring, Pb export constituted 2 to 95 % of Pb input. Highly polluted sites in the northeast exported significantly more Pb than less polluted sites further south. The 206Pb/207Pb isotope ratios of runoff (1.16) were

Název v anglickém jazyce

The Fate of Atmospherically Derived Pb in Central European Catchments: Insights from Spatial and Temporal Pollution Gradients and Pb Isotope Ratios

Popis výsledku anglicky

Soils in polluted regions are generally regarded as a delayed, long-lasting source for Pb contamination of aquatic systems. Lead deposited on topsoil is slowly transported downward with particulate and colloidal organic matter, driven by infiltrating precipitation. Then, Pb is tightly retained in mineral soil. Lead export from catchments is extremely low and de-coupled from the atmospheric input. We tested this hypothesis in 11 small catchments, differing in pollution levels. Input/ouput Pb fluxes weremonitored for 14-15 years in an era of decreasing industrial Pb emission rates. Between 1996/1997 and 2010, Pb deposition fluxes decreased significantly, on average by 80 %. At the beginning of the monitoring, Pb export constituted 2 to 58 % of Pb input.At the end of the monitoring, Pb export constituted 2 to 95 % of Pb input. Highly polluted sites in the northeast exported significantly more Pb than less polluted sites further south. The 206Pb/207Pb isotope ratios of runoff (1.16) were

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

DD - Geochemie

OECD FORD obor

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Projekt

<a href="/cs/project/7E10062" target="_blank" >7E10062: Soil Transformations in European Catchments</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

Environmental Science & Technology

ISSN

0013-936X

e-ISSN

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Svazek periodika

48

Číslo periodika v rámci svazku

8

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

4336-4343

Kód UT WoS článku

000334658400013

EID výsledku v databázi Scopus

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