Illinois Pollution Control Boarddo John TherriaultAssistant Clerk of the BoardJames R.
Thompson Center
100 W.
Randolph
Suite 11-500Chicago, Illinois 60601Re: Docket No.
Nationally, coal-fired power plants are the largest sources of SO
2 and mercury emissions, and areamong the largest single source emitters of NON.
Fine particulate matter
25 (PM) is a complex mixture of solid and liquid particles, and a verylarge proportion of measured PM2 .
5
results from the chemical transformation of SO2 and variousNO molecules in the atmosphere. We applaud you for your decision to put the MPS in place sixyears ago, and we ask that you continue to show your...
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