South Carolina State Implementation Plan

REGULATION NUMBER 62.5
AIR POLLUTION CONTROL STANDARDS
STANDARD NO. 2
AMBIENT AIR QUALITY STANDARDS

     
     The following table constitutes the ambient air quality
standards for the State of South Carolina.  The analytical
methods to be used will be those applicable Federal Reference
Methods published in 40 CFR 50, Appendices A-H as revised July 1,
1986.  In the case of fluorides either the double paper tape
sampler methods (ASTM D- 3266-79)  or the sodium
bicarbonate-coated glass tube and particulate filter method
(ASTM-3268-78) may be used.

                         MEASURING           MICROGRAMS PER
POLLUTANT                INTERVAL            CUBIC METER (1)(2)
---------                ---------           ----------------
Sulfur Dioxide           3 hour              1300(4)
                        24 hours              365(4) 
                         annual                80

Total Suspended Particulates Annual Geometric  75
                             Mean

PM10                     24 hours             150(3)
                         annual                50(3)

Carbon Monoxide           1 hour              40,000
                          8 hour              10,000

Ozone                     1 hour              0.12 ppm(3)

Non-methane hydrocarbons  3 hour                160

Gaseous Fluorides        12 hr. avg.              3.7
   (as HF)               24 hr. avg.              2.9
                          1 wk. avg.              1.6
                          1 mo. avg.              0.8

Nitrogen Dioxide          annual                 100

Lead                     Calendar Quarterly Mean   1.5

(1) Arithmetic Average except in case of total suspended    
particulate matter
(2) At 25oC and 760 mm Hg.
(3) Attainment determinations will be made based on the criteria  
  contained in Appendices H and K, 40 CFR 50, July 1, 1987.
(4) Not to be exceeded more than once a year

________________________________________________________________

THIS IS THE FEDERALLY APPROVED REGULATION AS OF JAN 29, 1980

               Date Submitted      Date Approved     Federal
               to EPA              by EPA            Register

Original Reg:  DEC 20, 1978        JAN 29, 1980      45 FR 6572
1st Revision:  APR 29, 1988        OCT O3, 1989      54 FR 40662
2nd Revision:  MAR 16, 1989        JUL 02, 1990      55 FR 27227
For information about the contents of this page please contact Sean Lakeman
South Carolina State Implementation Plan

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