35 Ill. Adm. Code 203.1340
Regulated NSR Pollutant
Section
203.1340Â Regulated NSR Pollutant
"Regulated NSR pollutant" means the following:
a)Â Â Â Â Â Â Â Â NO
X
or VOM;
b)Â Â Â Â Â Â Â Â Any
pollutant for which a NAAQS has been promulgated;
c)Â Â Â Â Â Â Â Â Any
pollutant that is identified under this Section as a constituent or precursor
of a general pollutant listed under subsection (a) or (b), provided that such constituent
or precursor pollutant may only be regulated under NSR as part of regulation of
the general pollutant. Precursors for purposes of NSR are the following:
1)Â Â Â Â Â Â Â Â Except
as provided in Section 203.1450, VOM and NO
X
are precursors to ozone
in all ozone nonattainment areas.
2)Â Â Â Â Â Â Â Â SO
2
and NO
X
are precursors to PM
2.5
for a stationary source
located in a PM
2.5
nonattainment area or, for purposes of Subpart R,
a stationary source which would cause or contribute to a violation of a PM
2.5
NAAQS.
3)Â Â Â Â Â Â Â Â VOM
and ammonia are precursors to PM
2.5
in any PM
2.5
nonattainment area.
d)Â Â Â Â Â Â Â Â Direct
PM
2.5
emissions and PM
10
emissions shall include gaseous
emissions from a source or activity that condense to form particulate matter at
ambient temperatures. On or after January 1, 2011, such condensable
particulate matter shall be accounted for in applicability determinations and
in establishing emissions limitations for direct PM
2.5
emissions and
PM
10
emissions in NA NSR permits
.Â
Compliance with emissions limitations for direct PM
2.5
emissions and
PM
10
emissions issued prior to this date shall not be based on
condensable particulate matter unless required by the terms and conditions of
the permit. Applicability determinations made prior to this date without
accounting for condensable particulate matter shall not be considered as a violation
of this Part.