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UNIT-1
Remedial methods foR pollution
Prevention and control of air pollution. Ozone hole – Causes and harm due to ozone depletion. The effect of
CFC’s in ozone depletion and their replacements. Global warming and greenhouse effect – Precautions to
control global warming. Deleterious effect of pollutants – Endangered monuments – Acid rain. Precautions
to protect monuments. Sources of radiation pollution – Chernobyl accident and its consequences. Radiation
effect by the usage of cell phones and protection tips. Deleterious effects of cell phone towers and health
hazards. Sources of water pollution – (i) Pollution due to pesticides and inorganic chemicals, (ii) Thermal
pollution, (iii) Ground water pollution, (iv) Eutrophication. Methods for control of water pollution and water
recycling. Dumping of plastics in river and oceans and their effect on aquatic life.
Determination of (i) Dissolved oxygen and (ii) Chemical oxygen demand in polluted water – Illustration
through charts (or) demonstration of experiments. Sources of soil pollution – (i) Plastic bags, (ii) Industrial
and (iii) Agricultural sources. Control of soil pollution.
Environmental laws in India. Environmental benefits of planning trees.
UNIT-2
dRinking wateR and soil feRtility standaRds and analysis
Water quality and common treatments for private drinking water systems: Drinking water standards –
Primary drinking water standards, Inorganics, Organics and volatile organic chemicals. Secondary drinking
water standards – Inorganics and physical problems. Water testing, Mineral analysis, Microbiological tests.
Pesticide and other organic chemical tests. Principle involved in water treatment techniques – (i) Reverse
osmosis, (ii) Disinfection methods such as chlorination, Ultraviolet light, Ozonation etc, (iii) Chemical
oxidation and (iv) Ion exchange (water softeners). Visit to nearby drinking water plants and interaction at
sites.
Introduction to soil chemistry – Basic concepts. Effect of pH on nutrient availability. Macronutrients and
their effect on plants - Carbon, Hydrogen, Oxygen, Nitrogen and phosphorus. Other macronutrients -
Calcium, Magnesium and sulfur. Micronutrients and their effect on plants. Boron (B4 O72- ), Copper (Cu2+),
Iron (Fe2+, Fe3+), Manganese (Mn2+), Molybdenum (Mo O4 2- ), Zinc (Zn2+), Cobalt (Co2+) Chlorine (Cl–) and
others.
Determination of soil nitrogen by Kjeldahl method. Visit to Nearby Agricultural Farms and Interaction with
Farmers Discussion with Farmers on the use of Soil Analysis Kits.
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CategoriesArts and Science
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TypeeBook