Natural indicators of pollution

Scientists dealing with the problem of pollution consider it very important that it should be exactly assessed. A large number of fairly sophisticated pollution gauges have been devised to serve this purpose. In addition, it has recently been found out that there are a number of natural gauges whose performance by far exceeds anything that has so far been made by man. They are plants as lichens and bryophytes which are exceptionally sensitive to certain components of air pollution. Ideally such “indicators” species should be widespread, easy to recognize, and between them show a wide range of sensibility so that the rate of fall-off pollution could be easily assessed. The sensitivity of certain plants to pollution components may also be of value to individual persons contemplating the possibility of settling down in an area. It is known, for example, that lichens are exceptionally to sulphur dioxide content in the air. It follows that people suffering from a variety of respiratory diseases would do well to live in an area where lichens are abundant on the trees.

ЛИТЕРАТУРА

Основная

1. Полякова Т.Ю., Синявская Е.В, Тынкова О.И. Английский язык для инженеров. М.: Высшая школа, 2007.

2. Андрианова Л.Н. Курс английского языка для вечерних и заочных технических вузов. М.: Высшая школа, 2008.

Дополнительная

3. Восковская А.С. Английский язык: учеб. пособие. Ростов н/Д.: Феникс, 2005.

4. Михайлов Н.Н. Лингвострановедение Англии: учебное пособие для вузов. М.: Академия, 2006.

ЗАДАНИЯ К КОНТРОЛЬНЫМ РАБОТАМ И МЕТОДИЧЕСКИЕ УКАЗАНИЯ ДЛЯ ИХ ВЫПОЛНЕНИЯ

по дисциплине «Иностранный язык» (английский)

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