5.05.2 环境污染

5.2 Pollution 环境污染

M: Well, no one could survive without water, but you see pollution has been making more and more water unable for drinking.

W: Yeah. Water pollution has for a long time been a major concern among the environmental issues.

M: But what are the sources of water pollution?

W: They could generally be divided into two categories: direct and indirect contaminant sources.

M: Well, direct ones are the pollution directly from factories, refineries waste treatment plants etc., aren’t they?

W: Yeah. They are emitted directly into urban water supplies.

M: But what about the indirect ones?

W: Indirect sources include contaminants that enter the water supply from soils or groundwater systems and from the atmosphere via rainwater.

M: I see. For the sake of us all, we should be an active participator in the prevention of it.

W: Sure. It's an issue asking for everyone's participation.