State of the Practice Worldwide: Interaction of Perched and Regional Aquifers at the Site Impacted by Volatile Organic Compounds

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F25%3A10501805" target="_blank" >RIV/00216208:11310/25:10501805 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=PWnfwOwGs9" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=PWnfwOwGs9</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/gwmr.70006" target="_blank" >10.1111/gwmr.70006</a>

Jazyk výsledku

angličtina

Název v původním jazyce

State of the Practice Worldwide: Interaction of Perched and Regional Aquifers at the Site Impacted by Volatile Organic Compounds

Popis výsledku v původním jazyce

A series of field measurements were used to evaluate the mutual interaction between the perched water zone and the regional aquifer under the specific site conditions of the contaminated site. The perched water zone apparently developed after the demolition of a building used for chemicals by leaving low permeability relics of the building slab after demolition and the presence of a relatively thin clayey horizon (approx. 2 m thick). The regional aquifer consists of weathered shale bedrock beneath the perching layer. The difference between the watertables of the perched and regional aquifers is between 0.5 and 1.2 m. The perched water was found to contain elevated concentrations of volatile organic compounds during initial sampling. A study was conducted to examine the perched water more closely and to describe the (1) controls on perching behavior, (2) contaminant flux through the unsaturated zone (soil gas) and to the regional aquifer, and (3) differences in the water quality of the perched groundwater and that in the regional aquifer. The data evaluation showed that the perched aquifer system is dynamic both in vertical and horizontal flow. Nonetheless, the hydrochemical data from the two aquifers were distinct in chemical composition despite their close proximity.

Název v anglickém jazyce

State of the Practice Worldwide: Interaction of Perched and Regional Aquifers at the Site Impacted by Volatile Organic Compounds

Popis výsledku anglicky

A series of field measurements were used to evaluate the mutual interaction between the perched water zone and the regional aquifer under the specific site conditions of the contaminated site. The perched water zone apparently developed after the demolition of a building used for chemicals by leaving low permeability relics of the building slab after demolition and the presence of a relatively thin clayey horizon (approx. 2 m thick). The regional aquifer consists of weathered shale bedrock beneath the perching layer. The difference between the watertables of the perched and regional aquifers is between 0.5 and 1.2 m. The perched water was found to contain elevated concentrations of volatile organic compounds during initial sampling. A study was conducted to examine the perched water more closely and to describe the (1) controls on perching behavior, (2) contaminant flux through the unsaturated zone (soil gas) and to the regional aquifer, and (3) differences in the water quality of the perched groundwater and that in the regional aquifer. The data evaluation showed that the perched aquifer system is dynamic both in vertical and horizontal flow. Nonetheless, the hydrochemical data from the two aquifers were distinct in chemical composition despite their close proximity.

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

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Ground Water Monitoring &amp; Remediation

ISSN

1069-3629

e-ISSN

1745-6592

Svazek periodika

45

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

11

Strana od-do

58-68

Kód UT WoS článku

001537955300001

EID výsledku v databázi Scopus

2-s2.0-105012108051