Section 326IAC1-2-52. "Particulate matter" or "PM" defined

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"Particulate matter" or "PM" means any airborne finely divided solid or liquid material, excluding uncombined water, with an aerodynamic diameter smaller than one hundred (100) micrometers (μm). (Air Pollution Control Division; 326 IAC 1-2-52; filed Mar 10, 1988, 1:20 p.m.: 11 IR 2374; filed Apr 13, 1988, 3:35 p.m.: 11 IR 3020; filed Dec 20, 2004, 2:15 p.m.: 28 IR 1471; filed Jun 11, 2012, 3:15 p.m.: 20120711-IR-326110251FRA)

                    
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