9788177541601 - air environment and pollution von purohit, s s & bhanu kakrani (2 Ergebnisse)

Anbieter: Majestic Books, Hounslow, , Vereinigtes KönigreichMajestic Books
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Zustand: New. pp. 244 Illus.

- Hardcover
Anbieter: Vedams eBooks (P) Ltd, New Delhi, IndienVedams eBooks (P) Ltd
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Hardcover. Zustand: New. Contents 1 Concepts of Environment and Pollution 2 The Anthrosphere 3 Air Pollution and Pollutants 4 Global Warming 5 Indoor Pollution and Air Quality 6 Air Pollutants Effects on Vegetation 7 Air Pollutants Effects on Health 8 Air Pollutants Effects on Materials 9 Air Pollution Control 10 Legal Control o…f Air Pollution 11 Air Pollution Episodes of the World 12 Laboratory Analysis of Air 13 Appendix 14 Subject IndexEarth is truly a marvelous third planet and 93000000 miles 150000000 km from the sun Earths atmosphere is a gaseous envelope that surrounds the earth planet It consists of a mixture of gases such as nitrogen oxygen carbon dioxide traces of noble gases argon krypton xenon neon and helium water vapour and small amount of ammonia ozone organic matter various salts and suspended solid particles Air is one of the most important constituents of mans environment It is calculated that a man breath about 22000 times a day inhaling about 16 kg of air by weight Therefore clean and pure air is very essential for his health and survival Any change in the normal composition of the air either qualitative or quantitative that may affect adversely the living system particularly the human life inevitably cause air pollution According to Bureau of Indian Standards IS-4167 1980 air pollution is the presence in ambient atmosphere of substances generally resulting from the activity of man in sufficient concentration present for a sufficient time and under circumstances such as to interfere with comfort health or welfare of persons or with reasonable use or enjoyment of property The major air pollutants are Carbon Monoxide CO Carbon Dioxide C02 Chlorofluorocarbons CFCs Hazardous Air Pollutants HAPs Lead Ozone 03 Nitrogen Oxide NOJ Particulate Matter Sulfur Dioxide S02 Volatile Organic Compounds VOCs etc The changes in climate of the Earth and the subsequent effects are called greenhouse effect 256 pp.