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
- 2011.12
- 수록면
- 27 - 36 (10page)
이용수
초록· 키워드
오류제보하기
Water is the basic concern of all ecosystems and the unitary nature of water makes its use in one form affect the use in another. In Bangladesh, surface waters are highly polluted and ground water, which is used to be the best source of drinking water, is contaminated with arsenic. Salinity intrusion from seawater deep into the land in the southwest of Bangladesh are rendering groundwater unfit for consumption, while surface water sources are 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, often the water quality is compromised during floods, and this translates into a type of water scarcity when good potable water becomes difficult to obtain. However, quality degrades in the dry season. The water of the major rivers is 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 namely 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 significantly differ in the spatial and temporal sources of variation affecting both the 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 ARE FACING?
INLAND SURFACE WATER QUALITY
GROUNDWATER QUALITY
INDUSTRIAL EFFLUENTS, AGROCHEMICALS AND FEACAL POLLUTION
CLIMATE CHANGE AND WATER QUALITY
POTENTIAL HEALTH HAZARDS
MITIGATION STRATEGIES
CONCLUSIONS
REFERENCES
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