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Assessment of the potential for groundwater contamination using the DRASTIC/EGIS technique, Cheongju area, South Korea

Content Provider	Springer Nature Link
Author	Kim, Youn Jong Hamm, Se Yeong
Copyright Year	1999
Abstract	Groundwater contamination is becoming a major environmental problem in South Korea with the marked expansion of the industrial base and the explosive growth of the population. Even in rural areas, the increased use of fertilizers and pesticides, the presence of acid-mine drainage, and increase of volumes of domestic wastewaters are adding to groundwater pollution. The DRASTIC/EGIS model was used to evaluate the potential for groundwater contamination in the Cheongju city area, the first of several pilot studies. The model allows the designation of hydrogeologic settings within the study area, based on a composite description of all the major geologic and hydrogeologic factors for each setting. Then, a scheme for relative ranking of the hydrogeologic factors is applied to evaluate the relative vulnerability to groundwater contamination of each hydrogeologic setting. DRASTIC/EGIS can serve as a tool to evaluate pollution potential and so facilitate programs to protect groundwater resources. La contamination de l'eau souterraine devient un problème environnemental majeur en Corée du Sud, en relation avec le développement industriel bien marqué et l'explosion démographique. Meme dans les zones rurales, l'utilisation accrue d'engrais et de pesticides, le drainage acide de mines et les rejets croissants d'eaux usées contribuent à la pollution des nappes. Le modèle DRASTIC/EGIS a été utilisé pour évaluer le potentiel de contamination des eaux souterraines dans la région de la ville de Cheongju, la première de plusieurs régions pilotes. Le modèle permet de définir des ensembles hydrogéologiques dans la région étudiée, à partir de la description composite de tous les facteurs géologiques et hydrogéologiques essentiels pour chaque ensemble. Ensuite, un schéma pour le classement des facteurs hydrogéologiques est mis en oeuvre pour évaluer la vulnérabilité relative à la contamination des eaux souterraines pour chaque ensemble. DRASTIC/EGIS peut servir d'outil d'évaluation du potentiel de pollution et ainsi faciliter des plans de protection des ressources en eau souterraines. La contaminación de aguas subterráneas, debida a la expansión industrial y al fuerte crecimiento demográfico, supone un gran problema medioambiental en Corea del Sur. También en áreas rurales, el incremento en el uso de fertilizantes y pesticidas, el drenaje de minas y el aumento de los caudales de aguas residuales provocan un aumento de la contaminación. Para evaluar el riesgo de contaminación de las aguas subterráneas en el área de la ciudad de Cheongju, el primero de una serie de estudios piloto, se utilizó el modelo DRASTIC/EGIS. Este modelo permite la zonificación del área de estudio, basada en consideraciones geológicas e hidrogeológicas. En cada una de las zonas se aplica un esquema de clasificación que evalúa su vulnerabilidad relativa. El modelo DRASTIC/EGIS puede servir como una herramienta para evaluar el riesgo potencial de contaminación que facilite la creación de programas de protección de los recursos subterráneos.
Starting Page	227
Ending Page	235
Page Count	9
File Format	PDF
ISSN	14312174
Journal	Hydrogeology Journal
Volume Number	7
Issue Number	2
e-ISSN	14350157
Language	English
Publisher	Springer-Verlag
Publisher Date	1999-04-15
Publisher Institution	International Association of Hydrogeologists
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Content Type	Text
Resource Type	Article
Subject	Earth and Planetary Sciences Water Science and Technology

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