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    Pollution

    Air pollution

    Air pollution is the addition of poisonous gases like CO,  NO, NO2, SO3, SO2, O3, H2S dust, smoke and unburnt hydrocarbons like CH4,C2H5, CFC, ...

    Alkalinity

    Alkalinity is the water quality parameter that determines the presence of dissolved hydroxide, carbonates and bicarbonates in the water. These may either be present alone or...

    Acid rain

    Especially in the industrial areas, countries are suffered by the harmful acid rain. The atmosphere is polluted by different oxides of non metals like...

    Chemical Oxygen Demand (COD) AND Dissolved Oxygen (DO)

    Chemical   Oxygen Demand (COD) The chemical oxygen demand is defined as the amount of oxygen expressed in gram per liter consumed under specified conditions...

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