By J. Tolgyessy
Environmental pollutants is a common challenge which threatens the ongoing lifestyles of mankind, rendering it one of many basic issues of society. This publication presents a finished view of the chemistry and biology of water, air and soil, putting specific emphasis on these features attached with the safety of our surroundings. the 1st a part of the publication offers basic info at the chemistry and biology of water in its common kingdom, and the consequences of water pollutants from undefined, site visitors, agriculture and urbanization. It covers the composition of traditional, provider and wastewaters, in addition to equipment of chemical and organic water research and water remedy. the second one half offers with atmospheric difficulties, rather the elemental composition of surroundings and different resources of its pollutants, tools of restrict, and air research. the ultimate a part of the amount makes a speciality of the features of soil and soil elements, typical and anthropogenous soil strategies, the chemistry, biology and microbiology of soil, and soil research. This paintings can be of worth to chemists, biologists, physicians, pharmacists, farmers, veterinarians and college scholars, in addition to all these engaged within the zone of environmental safeguard.
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Extra info for Chemistry and Biology of Water, Air and Soil: Environmental Aspects
This anomaly of water has far reaching impacts on life in water, as well as on the uses of water. When cooled down to 4"C, water falls to the bottom, but if it is cooler than 4°C it remains on the surface as it is less dense than the water with a temperature of 4°C; here, it transforms into ice by further reduction of temperature. Because ice is less dense than water it floats on the water surface and protects the water against further cooling. If there were no such anomaly, water would freeze from the bottom upwards and all life in it would be destroyed.
Air Pollution: Its Origin and Control, 2nd ed. Harper and Row, New York 1981. 14. Tchobanoglous, G. : Water Quality. Addison-Wesley, Reading 1985. 15. L. : Water Chemistry. J. Wiley and Sons, New York 1980. 16. Stumm, W. : Aquatic Chemistry, 2nd ed. J. Wiley-Interscience, New York 1980. 17. :Water. A Comprehensive ’Ikeatise. Plenum Press, New York 1972. 18. :Hydrochemistry. SNTL, Prague 1981 (in Czech). 19. : The Biology of Polluted Waters. University of Toronto Press, Toronto 1971. 20. H. ): Soil Chemistry.
An increased amount of heavy water has been found in some lakes, in the Dead Sea and in great depths of oceans. Two atoms of hydrogen and one atom of oxygen in a water molecule are bonded by a simple polar covalent bond H -+ t H. A water molecule has a triangular arrangement (Fig. 1). 13 x Cm. As the 0 t H bond is very polar and the H 2 0 molecule is bent, water is a strongly polar substance. - hydrogen molecule water molecule Fig. 1. A water molecule  ... 18-H I H ... 1 8 - H ... 1 8 - H ...
Chemistry and Biology of Water, Air and Soil: Environmental Aspects by J. Tolgyessy