المصدر: Causes and Effects of Heavy Metal Pollution في منتدى : العلوم العامة والبرامج العلمية (hi)(hi)(hi)(hi) :gift::gift: Causes and Effects of Heavy Metal Pollution By Mikel L. Sanchez Publisher Nova Science Publishers Number Of Pages: 392 Publication Date: 2008-10 ISBN-10 / ASIN: 160456900X ISBN-13 / EAN: 9781604569001 BooK Description A heavy metal is a member of an ill-defined subset of elements that exhibit metallic properties, which would mainly include the transition metals, some metalloids, lanthanides, and actinides. Many different definitions have been proposed - some based on density, some on atomic number or atomic weight, and some on chemical properties or toxicity. The term heavy metal has been called 'meaningless and misleading' in a IUPAC technical report due to the contradictory definitions and its lack of a 'coherent scientific basis'. As discussed below, depending on context, heavy metal can include elements lighter than carbon and can exclude some of the heaviest metals. One source defines 'heavy metal' as '...common transition metals, such as copper, lead, and zinc. These metals are a cause of environmental pollution (heavy-metal pollution) from a number of sources, including lead in petrol, industrial effluents, and leaching of metal ions from the soil into lakes and rivers by acid rain'. CONTENTS Preface vii Chapter 1 Impacts of the Mining and Smelting Activities to the Environment –Slovenian Case Studies 1 Chapter 2 Treatment of Acid Mine Drainage by a Combined Chemical/Biological Column Apparatus: Mechanisms of Heavy Metal Removal 81 Chapter 3 Assisted Phytoextraction for Abandoned Mining Areas Remediation 107 Chapter 4 Phytochelatins in Wild Plants from Guanajuato City – an Important Silver and Gold Mining Center in Mexico 123 Chapter 5 Fate of Trace Elements in the Venice Lagoon Watershed and Conterminous Areas (Italy) 137 Chapter 6 Anthropogenic Mercury Pollution in Aquatic Systems: A Review of Enviromental Fate and Human Health Risks 173 Chapter 7 In Situ Measurement of Metal Concentration in River Water Using Portable Edxrf System 201 Chapter 8 Biomonitoring of Heavy Metal Pollution in the Marine Environment Using Indicator Organisms 249 Chapter 9 Heavy Metal Contamination in Selected Urban Coastal Regions in US and China 265 Chapter 10 Monitoring Heavy Metal Pollution with Transgenic Plants 287 Chapter 11 Geochemistry of Major and Trace Elements in Core Sediments of Sunderban Delta, India: An Assessment of Metal Pollution Using Atomic Absorption Spectrometer and Inductively Coupled Plasma Mass Spectrometry 305 Chapter 12 Heavy Metal Pollution, Risk Assessment and Remediation in Paddy Soil Environment: Research Experiences and Perspectives in Korea 341 Index 371 LinK or or