California Code of Regulations › Title 17 - Public Health › Division 3 - Air Resources › Chapter 1 - Air Resources Board › Subchapter 1.5 - Air Basins and Air Quality Standards › Article 2 - Ambient Air Quality Standards › Section 70100.1 - Methods, Samplers, and Instruments for Measuring Pollutants

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) PM10 Methods.
					 The method for determining compliance with the PM10 ambient air quality
					 standard shall be the Federal Reference Method for the Determination of
					 Particulate Matter as PM10 in the Atmosphere ( 40 CFR, Chapter 1, part 50 ,
					 Appendix M, as published in 62 Fed. Reg., 38753, July 18, 1997). California
					 Approved Samplers for PM10 are set forth in "Air Monitoring Quality Assurance
					 Manual Volume IV, Part A: Monitoring Methods for PM10," adopted March 10, 2006,
					 which is incorporated by reference herein. Samplers, methods, or instruments
					 determined in writing by the Air Resources Board or the Executive Officer to
					 produce equivalent results for PM10 shall also be California Approved Samplers
					 for PM10. These include those continuous samplers that have been demonstrated
					 to the satisfaction of the Air Resources Board to produce measurements
					 equivalent to the Federal Reference Method.
(b) PM2.5 Methods. The method for determining
					 compliance with the PM2.5 ambient air quality standard shall be the Federal
					 Reference Method for the Determination of Particulate Matter as PM2.5 in the
					 Atmosphere, 40 CFR, Chapter 1, part 50 , Appendix L, as published in 62 Fed.
					 Reg., 38714, July 18, 1997 and as amended in 64 Fed. Reg., 19717, April 22,
					 1999. The samplers listed in the Federal Reference Method must use either the
					 WINS impactor or the U.S. EPA-approved very sharp cut cyclone (67 Fed. Reg.,
					 15566, April 2, 2002) to separate PM2.5 from PM10. California Approved Samplers
					 for PM2.5 are set forth in "Air Monitoring Quality Assurance Manual Volume IV,
					 Part B: Monitoring Methods for PM2.5," adopted March 10, 2006, which is
					 incorporated by reference herein. Samplers, methods, or instruments determined
					 in writing by the Air Resources Board or the Executive Officer to produce
					 equivalent results for PM2.5 shall also be California Approved Samplers for
					 PM2.5. These include those continuous samplers that have been demonstrated to
					 the satisfaction of the Air Resources Board to produce measurements equivalent
					 to the Federal Reference Method.
(c) Ozone Methods. The method for determining
					 compliance with the ozone ambient air quality standard shall be the Federal
					 Equivalent Method for the Determination of Ozone in the Atmosphere ( 40 CFR,
					 part 53 ). California Approved Samplers for ozone are set forth in "Air
					 Monitoring Quality Assurance Manual Volume IV, Part C: Monitoring Methods for
					 Ozone", as adopted March 10, 2006. Samplers, methods, or instruments determined
					 in writing by the Air Resources Board or the Executive Officer to produce
					 equivalent results for ozone shall also be California Approved Samplers for
					 ozone.
(d)
					 NO2 Methods. The method for determining compliance with
					 the NO2 ambient air quality standard shall be the
					 chemiluminescence Federal Reference Method for the determination of
					 NO2 in the atmosphere ( 40 CFR, Part 50 , Appendix F --
					 Measurement, as published in 41 Fed.Reg. 52688, Dec. 1, 1976, as amended at 48
					 Fed.Reg. 2529, Jan. 20, 1983). California Approved Samplers for
					 NO2 are set forth in the Air Monitoring Quality
					 Assurance Manual, Volume IV, Part D: Monitoring Methods for
					 NO2 as adopted on February 22, 2007, which is
					 incorporated by reference herein. Samplers, methods, or instruments determined
					 in writing by the Air Resources Board or the Executive Officer to produce
					 equivalent results for NO2 shall also be California
					 Approved Samplers for NO2.
1. New
						section filed 6-5-2003; operative 7-5-2003 (Register 2003, No.
						23).
2. Amendment filed 4-17-2006; operative 5-17-2006 (Register
						2006, No. 16).
3. New subsection (d) filed 2-19-2008; operative
						3-20-2008 (Register 2008, No. 8).
Note: Authority cited: Sections
						  39600,
						  39601
						  and
						  39606,
						  Health and Safety Code. Reference: Sections
						  39014,
						  39606,
						  39701
						  and
						  39703(f),
						  Health and Safety Code.