Abstract: Water pollution is one of the widest problems all over the world and has been extensively studied. One of the most widespread, costly and challenging environmental problems is nutrient pollution, which caused by leaches excess nitrogen and phosphorus to the water. The pollution intensity mainly depends on the anthropogenic activities in the studied area. So, surface water samples collected from eight different locations in middle and west delta regions (i.e., Gharbia and Beheira governorates, respectively). Water canal samples were collected monthly and different forms of nitrogen and phosphorus in these samples were determined including the dissolved ammonia nitrogen (N-NH3), nitrite nitrogen (N-NO2), nitrate-nitrogen (N-NO3), total nitrogen, dissolved phosphorus and total phosphorus. The obtained results showed that there is a significant difference between the means of the collected samples from different sites and dates. The interaction between them in all studied parameters was also recorded.........
Keywords: Nitrogen, phosphorus, Surfacewater, Egypt
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