지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2012.12
- 수록면
- 87 - 97 (11page)
이용수
초록· 키워드
오류제보하기
In Bangladesh, surface waters are highly polluted and ground water, which used to be the best source of potable water, is contaminated with arsenic. Salt water intrusion from seawater in southwest Bangladesh is rendering groundwater unfit for consumption, while surface water is polluted by municipal and industrial wastes. Excess water in the monsoon causes floods and riverbank erosion. Although there is an abundance of water in the monsoon, water quality is often compromised during floods, and this translates into a type of water scarcity where potable water becomes difficult to obtain. However, water quality degrades during the dry season. Major rivers are vulnerable to pollution from untreated industrial effluents and municipal wastewater, and runoff from chemical fertilizers and pesticides. As a result, the physico-chemical variables of the most rivers such as temperature, transparency, total dissolved solids, suspended solids, electrical conductivity, hardness, pH, dissolved oxygen (DO), biochemical oxygen demand (BOD), chemical oxygen demand (COD), nitrate, ammonium, and phosphate differ both spatially and temporally, affecting aquatic and terrestrial ecosystems as well as human health.
목차
Introduction
Geography, Rivers and Climate
Switching from surface water to groundwater
Trans-boundary aquifer behavior
What problems is Bangladesh facing?
Inland Surface Water Quality
Groundwater Quality
Climate change and water quality
Potential health hazards
Mitigation strategies
Conclusion
Literature cited
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