Answers

2015-02-17T15:01:44+05:30
There are other  way to reduce emissions besides using pollution control  equipment --prevent emission to begin  with. Air quality permit  help minimize ,reduce or prevent  emission as much as possible by placing requirements on how things are done.
permits can specify the quantity ,type or quality of fuel or other substance used in a process.
Engineers can also set combustion specifications to minimize emission. 
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