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EPA/AR RIN: 2060-AP89 Publication ID: Fall 2010 
Title: Federal Reference Method for Lead in Total Suspended Particulate Matter 
Abstract: On November 12, 2008 EPA substantially strengthened the national ambient air quality standards (NAAQS) for lead. EPA revised the level of the primary (health-based) standard from 1.5 micrograms per cubic meter (g/m3) to 0.15g/m3, measured as total suspended particles (TSP) and revised the secondary (welfare-based) standard to be identical in all respects to the primary standard. In conjunction with strengthening the lead (Pb) NAAQS, EPA identified the need for states to improve existing lead monitoring networks. Depending on specific circumstances, States may have the option of using monitoring for either lead in TSP (Pb-TSP) or lead in PM10 (Pb-PM10) using approved Federal Reference Methods (FRMs) or Federal Equivalent Methods (FEMs) to meet monitoring requirements. To support new monitoring requirements, an FRM for Pb-PM10 was developed with the November 8, 2008 rulemaking. The FRM for Pb-TSP was left unchanged. The Pb-TSP FRM was promulgated in 1978. EPA recognizes that significant advances in measurement technology have been made since the promulgation of the original FRM. In order to support new monitoring requirements for Pb-TSP and update the FRM to improve it based on advanced measurement technology, a new FRM must be developed. 
Agency: Environmental Protection Agency(EPA)  Priority: Substantive, Nonsignificant 
RIN Status: Previously published in the Unified Agenda Agenda Stage of Rulemaking: Proposed Rule Stage 
Major: No  Unfunded Mandates: No 
CFR Citation: 40 CFR 50   
Legal Authority: 7403,7410,7601(a),7611,7618   
Legal Deadline:  None
Timetable:
Action Date FR Cite
NPRM  10/00/2011    
Final Action  To Be Determined    
Additional Information: SAN No. 5388
Regulatory Flexibility Analysis Required: No  Government Levels Affected: State 
Small Entities Affected: No  Federalism: No 
Included in the Regulatory Plan: No 
RIN Data Printed in the FR: No 
Agency Contact:
Joann Rice
Environmental Protection Agency
Air and Radiation
C304-06,
Research Triangle Park, NC 27711
Phone:919 541-3372
Fax:919 541-1903
Email: Rice.Joann@epamail.epa.gov

Lewis Weinstock
Environmental Protection Agency
Air and Radiation
C304-06,
Research Triangle Park, NC 27711
Phone:919 541-3661
Fax:919 541-1903
Email: weinstock.lewis@epamail.epa.gov