40 CFR Table A-1 to Subpart A of Part 53 Summary of Applicable Requirements for Reference and Equivalent Methods for Air Monitoring of Criteria Pollutants | Code of Federal Regulations | US Law

40 CFR Table A-1 to Subpart A of Part 53

Summary of Applicable Requirements for Reference and Equivalent Methods for Air Monitoring of Criteria Pollutants

June 9, 2020

CFR

Pollutant	Reference or equivalent	Manual or automated	Applicable part 50 appendix	Applicable subparts of part 53
Pollutant	Reference or equivalent	Manual or automated	Applicable part 50 appendix	A	B	C	D	E	F
SO2	Reference	Manual	A-2
		Automated	A-1	✓	✓
	Equivalent	Manual	A-1	✓		✓
		Automated	A-1	✓	✓	✓
CO	Reference	Automated	C	✓	✓
	Equivalent	Manual	C	✓		✓
		Automated	C	✓	✓	✓
O3	Reference	Automated	D	✓	✓
	Equivalent	Manual	D	✓		✓
		Automated	D	✓	✓	✓
NO2	Reference	Automated	F	✓	✓
	Equivalent	Manual	F	✓		✓
		Automated	F	✓	✓	✓
Pb	Reference	Manual	G
	Equivalent	Manual	G	✓		✓
		Automated	G	✓		✓
PM10-Pb	Reference	Manual	Q
	Equivalent	Manual	Q	✓		✓
		Automated	Q	✓		✓
PM10	Reference	Manual	J	✓			✓
	Equivalent	Manual	J	✓		✓	✓
		Automated	J	✓		✓	✓
PM2.5	Reference	Manual	L	✓				✓
	Equivalent Class I	Manual	L	✓		✓		✓
	Equivalent Class II	Manual	L¹	✓		✓²		✓	✓^{1 2}
	Equivalent Class III	Automated	L¹	✓		✓		✓	✓¹
PM10-2.5	Reference	Manual	L, O	✓				✓
	Equivalent Class I	Manual	L, O	✓		✓		✓
	Equivalent Class II	Manual	L, O	✓		✓²		✓	✓^{1 2}
	Equivalent Class III	Automated	L¹, O¹	✓		✓		✓	✓¹

1. Some requirements may apply, based on the nature of each particular candidate method, as determined by the Administrator.

2. Alternative Class III requirements may be substituted.

[75 FR 35597, June 22, 2010]

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