Americans tend to think water pollution problems are pretty well under control, but we still face enormous challenges.

美国人趋向于认为水污染问题会在控制下变好，但是我们仍然面临极大的挑战。

youdao

The muddle over how to limit water pollution from a refinery, which at least is easy to identify, does not bode well.

不知如何限制精炼油厂污染水源并不是一个好兆头，因为至少这种污染源点是容易确定的。

youdao

Natural stone material, as well as natural wood to breathe for a porous material, so it is easy to absorb water or invaded by water soluble pollution.

天然石材和天然木材一样，为一种会呼吸的多孔材料，因此很容易吸收水分或经由水溶解而侵入污染。

youdao

There have been documented cases of leaking gas ruining nearby well water, of air pollution and of problems from the waste the drilling generates.

WSJ: Celebrity 'fractivists': True advocates or NIMBYs?

She outlined the reasons for a more cautious approach, which included the ban or moratorium placed on fracking in other countries, concerns cited by NI Water for the effect of pollution on water supply, and the dangers of well blowouts and earth tremors.

BBC: Hydraulic fracturing

In some places, the practice has been blamed for air pollution and gas leaks that have ruined well water, but the Obama administration and many state regulators say the practice is safe when done properly.

WSJ: Fracking coalition upsets both greens and drillers