<html> <head> <title>Rule 74:36:01:11 National ambient air quality standard (NAAQS).</title> <META NAME="Keywords" Content="Administrative Rules 74:36:01:11"> <META NAME="Description" Content="Administrative Rules 74:36:01:11 National ambient air quality standard (NAAQS)."> <meta name=Generator content="Microsoft Office HTML Filter 2.0"> <meta http-equiv=Content-Type content="text/html; charset=windows-1252"> <meta name=Originator content="Microsoft Word 10"> <style> <!-- --> </style> </head> <body lang=EN-US> <div> <p><font size=3 face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>74:36:01:11.&nbsp;&nbsp;National ambient air quality standard (NAAQS).</b> The national primary ambient air quality standards define levels of air quality that are necessary, with a margin of safety, to protect the public health. The national secondary ambient air quality standards define levels of air quality that are necessary to protect the public welfare from any known or anticipated adverse effects of a pollutant. These standards are located in chapter 74:36:02.</font></p> <p><font size=3 face="Times New Roman">&nbsp;</font></p> <p><font size=3 face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>Source:</b> SL 1975, ch 16, §&nbsp;1; 2 SDR 40, effective December 7, 1975; transferred from §&nbsp;34:10:01:01, 7 SDR 4, effective July 27, 1980; transferred from §&nbsp;44:10:01:01, effective July 1, 1981; 8 SDR 71, effective December 21, 1981; 10 SDR 68, effective January 5, 1984; 13 SDR 129, 13 SDR 141, effective July 1, 1987; 14 SDR 72, effective November 24, 1987; 16 SDR 88, effective November 14, 1989; 17 SDR 170, effective May 13, 1991; transferred from §&nbsp;74:26:01:01, 19 SDR 157, effective April 22, 1993.</font></p> <p><font size=3 face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>General Authority:</b> SDCL <A HREF="/statutes/DisplayStatute.aspx?Type=Statute&Statute=34A-1-6">34A-1-6.</A></font></p> <p><font size=3 face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>Law Implemented:</b> SDCL <A HREF="/statutes/DisplayStatute.aspx?Type=Statute&Statute=34A-1-6">34A-1-6.</A></font></p> <p><font size=3 face="Times New Roman">&nbsp;</font></p> </div> </body> </html>