Environmental tracers as a tool in groundwater vulnerability assessment

DENOFAS: A Vulnerability Assessment Tool

This paper describes the development of a software tool for detection of vulnerabilities in networked systems, using public available security resources. Our tool builds is knowledge from: searching host’s ports and available services, looking for security faults, using periodically updated security information and previously scanned data to build a knowledge base. The inference process produce...

Integrated assessment on groundwater nitrate by unsaturated zone probing and aquifer sampling with environmental tracers.

By employing chemical and isotopic tracers ((15)N and (18)O in NO(3)(-)), we investigated the main processes controlling nitrate distribution in the unsaturated zone and aquifer. Soil water was extracted from two soil cores drilled in a typical agricultural cropping area of the North China Plain (NCP), where groundwater was also sampled. The results indicate that evaporation and denitrification...

Vulnerability and Environmental Risk Assessment

Over the past half century, environmental risk assessment (ERA) has become increasingly important in political decisions. It forms an important basis within the World Trade Organization’s Sanitary and Phytosanitary Agreement (SPS) and is an important touch point within the Convention on Biological Diversity. The scope of ERA is expanding rapidly both in the issues that it covers and in its role...

GIS-based DRASTIC method for groundwater vulnerability assessment: a review

Groundwater Vulnerability Assessment of the Pingtung Plain in Southern Taiwan

In the Pingtung Plain of southern Taiwan, elevated levels of NO₃--N in groundwater have been reported. Therefore, efforts for assessing groundwater vulnerability are required as part of the critical steps to prevent and control groundwater pollution. This study makes a groundwater vulnerability assessment for the Pingtung Plain using an improved overlay and index-based DRASTIC model. The improv...