Essay On Water Quality

887 Words2 Pages

Although water constitutes 71% of the earth’s surface, yet only 0.3% of it is available as fresh water for human use. Moreover, it is the quality of such freshwater in ground and surface system that is of utmost concern to us as potable water needs to be appropriate in terms of calories and organic nutrient content. Ground and surface water quality either in rural or urban environment is affected both by natural processes as well as anthropogenic influences. Because of this, the water is becoming scarce day by day as the population increases across the world. Changes in water quality due to natural processes are because of weathering of rocks; evapotranspiration; depositions due to wind; leaching from soil’ runoff due to hydrological factors; and biological processes happening in the aquatic environment. The changes that occur due to natural processes bring about change in PH and alkalinity in water while at places also causing phosphorus loading, increase in fluoride content and high concentrations of sulphates. The anthropogenic factors affecting the water quality includes impacts due to agriculture ; use of fertilizers, manures and pesticides; animal husbandry activities; inefficient irrigation practices; deforestation of woods ; aquaculture; pollution due to industrial effluents and domestic sewage; mining and recreational activities. The anthropogenic influence causes elevated concentrations of heavy metals, Mercury, coliforms and nutrient loads.
This paper studies the effects of natural processes and human influences in rural and urban aquatic systems. The pollution due to environmental parameters such as elemental pollution, heavy metals, compounds and bacterial and pathogenic contamination for both urban and rural areas h...

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...c ecosystem, but also the access to safe drinking water for human consumption. Water quality and quantity are thus intimately linked though not often measured simultaneously. Water quantity measurement is done by hydrological monitoring stations that record water level, discharge, and velocity. In contrast, water quality is determined by analysis of water samples collected by these monitoring stations periodically. However, the results of water quality monitoring are important so as to determine the spatial and temporal trends in such surface and ground waters.
Local, regional and global assessments of water quality monitoring data help in illustration of key features of aquatic environments, while explaining the positive and negative impact of human activities. Clear and concise background knowledge on water quality can further help in other water assessments.

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