Groundwater arsenic contamination, its health impact and mitigation program in Nepal
| Autor: | Narayan P. Upadhyay, Sabita Tuladhar, Binod M Dahal, Roshan R. Shrestha, Mathura P. Shrestha, Kabita B. Shrestha, Arinita Maskey, Rosha Khadka, Makhan Maharjan, Riddhi Pradhan |
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| Rok vydání: | 2003 |
| Předmět: |
Adult
Male medicine.medical_specialty Environmental Engineering Adolescent Arsenic poisoning Water supply chemistry.chemical_element Risk Assessment Skin Diseases Arsenic Nepal Environmental protection Water Supply Environmental health Arsenic Poisoning medicine Humans Water pollution Child Aged business.industry Public health Incidence Water Pollution General Medicine Middle Aged medicine.disease Arsenic contamination of groundwater Geography chemistry Nails Epidemiological Monitoring Female Water quality business Risk assessment Environmental Monitoring Hair |
| Zdroj: | Journal of environmental science and health. Part A, Toxic/hazardous substancesenvironmental engineering. 38(1) |
| ISSN: | 1093-4529 |
| Popis: | About 47% of Nepal's total population is living in Terai region and 90% of them are relying on groundwater as their major source of drinking water. About 200,000 shallow tubewells have been installed by different agencies in 20 Terai districts, serving 11 million people. Recently, arsenic contamination of groundwater has been recognized as a public health problem in Nepal. This has sensitized government, national and international nongovernment organizations working on water quality sector to carry out water quality assessment for arsenic in the affected communities. So far, 15,000 tubewells has been tested where 23% samples exceeded World Health Organization guideline value of 10 microg/L and 5% exceeded "Nepal Interim Arsenic Guideline" of 50 microg/L. It is estimated that around 0.5 million people in Terai are living at risk of arsenic poisoning (>50 microg/L). Some recent studies have reported the prevalence of dermatosis related to arsenicosis from 1.3 to 5.1% and the accumulation of arsenic in biological samples like hair and nail much higher than the acceptable level. Though some steps are being taken by government and private organizations to combat the problem, it has not been able to cover all the affected communities. Nepal still needs more research work on arsenic occurrence and effects and mitigation programs simultaneously. |
| Databáze: | OpenAIRE |
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