Study of the ground water quality in Hodeidah is an essential ingredient for a healthypopulation. In this research, study of drinking water samples for eight water sources wells in theQuti field has been achieved. The purpose was to a certain the quality of water from thesesources, the physical properties such as pH, electrical conductivity (EC) and total dissolvedsolids (TDS), showed the varia...

to assess the pollution trend of southwest ground water aquifer of tehran by nitrite and nitrate, in february 1999, out of 300 wells within this area, 99 wells were selected according to simple random sampling without replacement, analysed by colorimetric and ultraviolet spectrophotometric screening standard methods, respectively. the conclusion asserted is that with a confidence limit of 95%, ...

Agricultural pesticides (i.e., insecticides, herbicides, and fungicides) represent a threat to drinking water quality and aquatic life within agricultural streams. Many agricultural streams serve as source waters for urban drinking water supplies within the Midwestern United States. Transport of pesticides from upstream agricultural streams to downstream drinking water supplies can result in an...

nutrient in estuaries. Phosphorus enters surface waters in both dissolved and particulate form and is generally Much of the nonpoint N and P entering surface waters of the the limiting nutrient in lakes. A large portion of the N Midwest is from agriculture. We determined if constructed wedands could be used to reduce nonpoint N and P exports from agricultural and P now entering U.S. freshwater ...

THE city of Pulaski in Giles County, Tenn., affords an area in which the intermittent fluoridation of water can be studied. The effect on the teeth of children of intermittent fluoridation of a municipal water supply has not been reported. The Pulaski water supply is derived from Richland Creek, while the surrounding area is served by ground water. The intermittent fluoridation of the water sup...

Artificial groundwater recharge is a process by which the groundwater reservoir is augmented at a rate exceeding the augmentation rate under natural conditions of replenishment. In some parts of India, due to over-exploitation of groundwater, decline in groundwater levels resulting in shortage of supply of water, and intrusion of saline water in coastal areas have been observed. In such areas, ...

The groundwater of the Ghis-Nekor aquifer (Central Rif Morocco) is main water resource used by inhabitants for agricultural and domestic purposes. However, its low quality may affect health consumer weaken production. existence WWTP at level this plain, makes it a probable source pollution these requires urgent managers’ intervention. Groundwater in area be related to natural, anthropogenic und...

Nitrates are the most common chemical pollutant of groundwater in agricultural and suburban areas. Croatia must comply with the Nitrate Directive (91/676/EEC) whose aim is to reduce water pollution by nitrates originating from agriculture and to prevent further pollution. Podravina and Prigorje are the areas with a relatively high degree of agricultural activity. Therefore, the aim of this stud...