drastic model has been used to map groundwater vulnerability to pollution in many areas. since this method is used in different places without any changes, it cannot consider the effects of pollution type and characteristics. therefore, the method needs to be calibrated and corrected for a specific aquifer and pollution. in the present research, the rates of drastic parameters have been correct...

natural aquifer vulnerability can be defined as reaching pollution to groundwater and the possibility to propogate in it after land contamination. this is a relative specification, with no dimension and cannot be measured; which it is not only depended on aquifer specification but also on geological and hydrological characteristics of the aquifer of the region. varieties of methods have been de...

Aminopolymer functionalization with fluoroalkyl chains and resulting void volume afford 4.1-fold increase in amine efficiency 2.8-fold CO2 capture capacity the fluorinated material.

Abstract Evolving groundwater vulnerability from DRASTIC to modified methods helps choose the most accurate areas that are delicate toward pollution. This study aims modify with land use and water quality index for assessment in Halabja-Khurmal sub-basin, NE/Iraq. The sub-basin is calculated nine hydrogeological parameters by overlay weighting method. As a result, 1.3% of total area has very hi...

Abstract The DRASTIC method is one of the most widely used groundwater vulnerability assessment techniques. In areas where main useful aquifers are covered with an extra layer diverse sediments, a further modification required for more precise estimation. this article, was improved in characterized by Quaternary deposits remarkably influencing infiltration conditions. Three parameters were modi...

Jaffna peninsula in Sri Lanka is an area of intensive agriculture using extensive organic and inorganic nitrogenous compounds and hence, this study was focused on assessing vulnerability of karstic aquifer system with specific focus on nitrate contamination, and compare loads of nitrate from agriculture. The total number of the wells sampled in the Chunnakam aquifer is 44. The coverage of wells...