List of Figures.
List of Tables.
Series Editors' Preface.
Acknowledgements.
List of Abbreviations.
Glossary.
1. Introduction.
1.1. Background.
1.2. The Nature of Arsenic Pollution.
1.3. History of Natural Arsenic Contamination.
1.4. Arsenic Pollution.
1.5. Risk, Perception and Social Impacts.
1.6. Water-supply Mitigation.
1.7. Structure and Scope of the Book.
2. Hydrogeochemistry of Arsenic.
2.1. Introduction.
2.2. The Chemistry of Normal and Arsenic-Rich Groundwaters.
2.3. Adsorption and Desorption of Arsenic.
2.4. The Role of Sulphur in Strongly Reducing Groundwater.
2.5. Arsenic and Microbial Activity.
2.6. Arsenic Mobilisation Mechanisms.
2.7. Associations of Arsenic with other Trace Elements.
2.8. Arsenic Pollution and Mining.
2.9. Summary.
Annexe 2.1. Analysis of Arsenic in Natural Waters.
3. The Hydrogeology of Arsenic.
3.1. Introduction.
3.2. Arsenic in Rocks and Sediments.
3.3. Arsenic in River Water and Sediment.
3.4. Geo-environmental Associations of Arsenic in Groundwater.
3.5. Geochemical Processes in their Geological Context.
3.6. Behaviour of Arsenic in Aquifers.
3.7. Case Histories of Arsenic-affected Aquifers.
3.8. Implications of Long-term Pumping of Arsenic Contaminated Groundwater.
3.9. Summary and Conclusions.
4. Soils and Agriculture.
4.1. Introduction.
4.2. Arsenic in Soils.
4.3. Irrigation with Arsenic-contaminated Water.
4.4. Arsenic Uptake by plants.
4.5. Options for Arsenic Management.
4.6. Research and Development Needs.
5. Health Effects of Arsenic in Drinking Water and Food.
5.1. Introduction.
5.2. A Short History of the Health Effects of Chronic Arsenic Poisoning.
5.3. Toxicity of Arsenic Compounds.
5.4. Environmental Exposure to Arsenic.
5.5. Acute Arsenic Poisoning.
5.6. Dermatological Manifestations.
5.7. Carcinogenic effects.
5.8. Systemic Non-carcinogenic Effects.
5.9. Social and Psychological Effects.
5.10. Effect of Other Toxic and Trace Elements.
5.11. Geographical differences in Health Effects.
5.12. Case History of Arsenic Exposure in Murshidabad District, West Bengal.
5.13. Diagnosis and Treatment of Arsenicosis.
5.14. Removing Exposure to Arsenic.
5.15. Summary and Recommendations.
6. Water-supply Mitigation.
6.1. Introduction.
6.2. Approaches to Water-supply Mitigation.
6.3. Surveys of Arsenic Affected Areas.
6.4. Exploiting Safe Groundwater Sources.
6.5. Developing Surface Water Sources.
6.6. Arsenic in Water Distribution Networks.
6.7. Socio-economic Aspects of Mitigation.
6.8. Policy and Planning Initiatives.
6.9. Monitoring and Evaluation of Water-supply Mitigation Programmes.
6.10. Summary.
Annexe 6.1. Arsenic Survey Procedures.
7. Removing Arsenic from Drinking Water.
7.1. Introduction.
7.2. Water Quality Issues.
7.3. Methods of Arsenic Removal.
7.4. Aquifer Clean-up.
7.5. Disposing of Waste from Treatment Processes.
7.6. Examples and Operational Experience of Arsenic Removal Technologies.
7.7. Costs of Arsenic Removal.
7.8. Guidance for Selecting Treatment Methods and Technologies.
7.9. Case Study of Water Treatment Requirements in Bangladesh.
7.10. Future Needs.
8. Arsenic in Asia.
8.1. Introduction.
8.2. South Asia.
8.3. Southeast Asia.
8.4. China.
8.5. East Asia.
8.6. Western, Central and Northern Asia.
8.7. Suspect Terrain and Research Needs.
Annexe 8.1. The British Geological Survey Court Case.
9. Arsenic in North America and Europe.
9.1. Introduction.
9.2. United States of America and Canada.
9.3. Mexico.
9.4. Europe.
9.5. Suspect Terrain and Research Needs.
10. Arsenic in South and Central America, Africa, Australia and Oceania.
10.1. Introduction.
10.2. South and Central America.
10.3. Africa.
10.4. Australasia.
10.5. Arsenic in the Ocean Basins.
10.6. Suspect Terrain and Research Needs.
11. Synthesis, Conclusions and Recommendations.
11.1. Scale and Impact of Arsenic Pollution.
11.2. Chemistry, Cause and Prediction.
11.3. Agricultural Impacts, Prospects and Needs.
11.4. Water-supply Mitigation.
11.5. Sustainability Issues.
11.6. Geographical Perspectives.
11.7. The Politics of Arsenic Pollution and Mitigation.
11.8. Ten Priority Actions.
Notes.
References.
Index
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