Ill. Admin. Code tit. 35, § 243.120 - PM10 and PM2.5
a) 1987 Primary
and Secondary 24-Hour NAAQS for PM10
1) The level of the 1987 primary and
secondary 24-hour NAAQS for PM10 is 150
µg/m3, 24-hour average concentration. The 1987
primary and secondary NAAQS for PM10 is attained when
the expected number of days per calendar year with a 24-hour average
concentration above 150 µg/m3, as determined
in accordance with appendix K to 40 CFR 50, incorporated by reference in
Section
243.108,
is equal to or less than one.
2)
This subsection (a)(2) corresponds with
40
CFR 50.6(b), a provision
marked "reserved" by USEPA. This statement maintains structural consistency
with the corresponding federal regulation.
3) For the purpose of determining attainment
of the 1987 primary and secondary 24-hour NAAQS for
PM10, particulate matter must be measured in the ambient
air as PM10 by a method that fulfills either of the
following requirements:
A) An FRM based on
appendix J to 40 CFR 50, incorporated by reference in Section 243.108, and
designated by USEPA and listed in List of Designated Methods, incorporated by
reference in Section 243.108; or
B)
An FEM designated by USEPA and listed in List of Designated Methods,
incorporated by reference in Section 243.108.
BOARD NOTE: This subsection (a) is derived from 40 CFR 50.6.
b) 1997 Secondary Annual Average and Primary
and Secondary 24-Hour NAAQS for PM2.5
1) The 1997 secondary annual average NAAQS
for PM2.5 is 15.0
µg/m3, annual arithmetic mean concentration,
and the 1997 primary and secondary 24-hour NAAQS for
PM2.5 is 65 µg/m3,
24-hour average concentration, measured in the ambient air as
PM2.5 by a method that fulfills either of the following
requirements:
A) An FRM based on appendix L of
40 CFR 50, incorporated by reference in Section 243.108, and designated by
USEPA and listed in the List of Designated Methods, incorporated by reference
in Section 243.108; or
B) An FEM
designated by USEPA and listed in the List of Designated Methods, incorporated
by reference in Section 243.108.
2) The 1997 secondary annual average NAAQS
for PM2.5 is met when the annual arithmetic mean
concentration, as determined in accordance with appendix N of 40 CFR 50,
incorporated by reference in Section 243.108, is less than or equal to 15.0
µg/m3.
3) The 1997 primary and secondary 24-hour
NAAQS for PM2.5 is met when the
98th percentile 24-hour concentration, as determined
in accordance with appendix N of 40 CFR 50, incorporated by reference in
Section 243.108, is less than or equal to 65
µg/m3.
BOARD NOTE: This subsection (b) is derived from 40 CFR 50.7.
c) 2006 Secondary Annual Average and Primary
and Secondary 24-Hour NAAQS for PM2.5
1) The 2006 secondary annual average NAAQS
for PM2.5 is 15.0
µg/m3, annual arithmetic mean concentration,
and the 2006 primary and secondary 24-hour NAAQS for
PM2.5 is 35 µg/m3,
24-hour average concentration, measured in the ambient air as
PM2.5 by a method that fulfills either of the following
requirements:
A) An FRM based on appendix L of
40 CFR 50, incorporated by reference in Section 243.108, and designated by
USEPA and listed in the List of Designated Methods, incorporated by reference
in Section 243.108; or
B) An FEM
designated by USEPA and listed in the List of Designated Methods, incorporated
by reference in Section 243.108.
2) The 2006 secondary annual average NAAQS
for PM2.5 is met when the annual arithmetic mean
concentration, as determined in accordance with appendix N of 40 CFR 50,
incorporated by reference in Section 243.108, is less than or equal to 15.0
µg/m3.
3) The 2006 primary and secondary 24-hour
NAAQS for PM2.5 is met when the
98th percentile 24-hour concentration, as determined
in accordance with appendix N of 40 CFR 50, incorporated by reference in
Section 243.108, is less than or equal to 35
µg/m3.
BOARD NOTE: This subsection (c) is derived from 40 CFR 50.13.
d) 2012 Primary Annual Average and 24-Hour
NAAQS for PM2.5
1) The
2012 primary annual average NAAQS for PM2.5 is 12.0
µg/m3 annual arithmetic mean concentration,
and the 2012 primary 24-hour NAAQS for PM2.5 is 35
µg/m3 24-hour average concentration, measured
in the ambient air as PM2.5 by a method that fulfills
either of the following requirements:
A) An
FRM based on appendix L of 40 CFR 50, incorporated by reference in Section
243.108, and designated by USEPA and listed in List of Designated Methods,
incorporated by reference in Section 243.108; or
B) An FEM designated by USEPA and listed in
List of Designated Methods, incorporated by reference in Section
243.108.
2) The 2012
primary annual NAAQS for PM2.5 is met when the annual
arithmetic mean concentration, as determined in accordance with appendix N of
40 CFR 50, incorporated by reference in Section 243.108, is less than or equal
to 12.0 µg/m3.
3) The 2012 primary 24-hour NAAQS for
PM2.5 is met when the 98th
percentile 24-hour concentration, as determined in accordance with appendix N
of 40 CFR 50, incorporated by reference in Section 243.108, is less than or
equal to 35 µg/m3.
Notes
Amended at 37 Ill. Reg. 19848, effective November 27, 2013
BOARD NOTE: This subsection (d) is derived from 40 CFR 50.18.
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