The three ‘Ds’ of water pollu-tion

The three ‘Ds’ of water pollu-tion control (dilution, dispersion and degradation; see Chapter 7) all occur at slow rates in stored water, making pollution management a particular prob-lem. When this is combined with the use of these waters for potable supply, an understanding of the hydrological processes occurring in stored water is very important. In this chapter two major stores of water are described: water beneath the earth’s surface in the unsaturated and saturated zones; and snow and ice.

Результаты (английский) 1:

The three ' Ds ' of water-pollu tion control (dilution, dispersion and degradation; see Chapter 7) all occur at slow rates in stored water pollution management, making a particular prob-lem. When this is combined with the use of these waters for water potable supply, an understanding of the hydrological processes occurring in stored water is very important. In this chapter two major stores of water are described: water earth's beneath the surface in the unsaturated and saturated zones; and snow and ice.