ABSTRACT
This chapter discusses the effects of air pollutants, water pollutants, and land pollutants on For reasons hopefully obvious to the reader, the material will key in on the effects on humans. The air over largely populated cities often becomes so filled with pollutants that it not only harms the health of humans but also the plants, animals, and materials of construction. Wastes, including dead plants and wastes from animals, form a substance in the soil called humus. Pollutants are various noxious chemicals and refuse materials that impair the purity of the water, soil, and the atmosphere. The area most affected by pollutants is the atmosphere or air. Air pollution occurs when wastes pollute the air. The influence of air pollution on human productivity has not been firmly established. In addition, a number of authorities suspect that air pollution is associated with an increasing incidence of lung and respiratory ailments and heart disease.
