The chemical speciation of heavy metals (arsenic, chromium, copper, lead, zinc and tin) in the sediments of former tin mining catchment Bestari Jaya, Peninsular Malaysia was determined by using the latest version of the Community Bureau of Reference, usually called the BCR 3-step sequential extraction procedure. Furthermore, a fourth step was introduced for digestion and analysis of the residue...

The present study seeks to both estimate and analyze the rate of heavy metal changes in soils road margins affected by traffic on Fasa-Darab Road, Iran. Muller index, contamination factor (CF), Geoaccumulation index (Igeo), potential ecological risk (PERI), pollution load (PLI) were calculated determine rate. Principal component analysis was also employed most relevant parameters affecting PERI...

eight selected heavy metals (cu, zn, pb, cd, cr, mn, fe and al) in surface and sub-surfacesediments in the northern coast of sfax (tunisia) were studied in order to assess the sediment quality and tohighlight the anthropogenic contributions to heavy metal distributions in the two study sediment levels.multiple chemometric approaches based on geographic information system (gis), enrichment facto...

2. OVERVIEW OF GIR SYSTEM 2.1 Pre-process The GIR system requires a text index and a geographic index. As the text index, those created for existing full-text search can be used. The geographic index is made by using NE recognizer, which locates place name expressions in texts as geo-references and geo-coder, which assigns coordinates to each geo-reference. The geographic index of our method al...

The in vitro antibacterial activity of ginger (Zingiber officinale) essential oil (GEO) was tested against five Gram-negative and Gram-positive fish pathgenic bacteria isolated from farmed olive flounder (Paralichthys olivaceus) in Korea. According to the results of disk diffusion, minimum inhibitory and minimum bactericidal concentration (MIC and MBC) tests, GEO was active against most of the ...