Pollution began to draw major public attention in the United States between the mid-1950s and early 1970s, when Congress passed the Noise Control Act, the Clean Air Act, the Clean Water Act, and the National Environmental Policy Act.
美国公众在二十世纪五十年代中期到七十年代早期开始注意到污染物，国会通过了噪声控制法、清洁空气法和清洁水源法，以及全美环境政策法。