日常摄入的水、食物和各类能量与输出的污水、固体废物、空气污染物、能源和经过某种转化的物质相匹配。
A daily input of water, food, and energy of various kinds is matched by an output of sewage, solid waste, air pollutants, energy, and materials that have been transformed in some way.
这些污染物被称为气溶胶，它们包括煤烟以及空气中氮、硫和其他物质的混合物。
These pollutants are called aerosols and they include soot as well as compounds of nitrogen and sulfur and other stuff into the air.
《清洁空气法》授权美国环保局监管有害污染物，如微粒物质和臭氧。
The Clean Air Act mandates the EPA to regulate harmful pollutants such as particulate matter and ozone.
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