Laserfiche WebLink
AIR QUALITY STANDARDS <br /> California National <br /> Averaging Time - Concentrationr mart' econ ery Objective <br /> (PPM)' (ppm)• (Ppm)* <br /> Oxidant <br /> 1 hour 0.10 --- --- Prevent eye and <br /> respiratory <br /> irritation <br /> Ozone Prevent eye and <br /> 1 hour --- 0.12 0.12 respiratory <br /> irritation <br /> Carbon Monoxide Prevent problems <br /> 1 hour 20 35 35 of oxygen trans- <br /> 8 hours 9.0 9 9 port by hemoglobin <br /> Nitrogen Dioxide Reduce health <br /> 1 hour 0.25 --- --- risks and improve <br /> Annual Average --- 0.05 0.05 visibility <br /> Suspended Particulate Improve visibility <br /> Matter 3 3 3 and reduce eye and <br /> 24 hours 100 r g/m 260 r.g/m ISO p g/m respiratory I"I- <br /> Annual Geometric tattoos <br /> Mean 60 fi 9/m3 75 fr 9/103 60�X g/03 <br /> Sulfur Dioxide Prevent respiratory <br /> 1 hour 0.5 ... irritation,irritation, plant <br /> 3 hours --- --- K'S damage, and odors <br /> 24 hours 0.05 0.14 --- <br /> Annual Average --- 0.03 --- <br /> Sulfates 3 Prevent eye and <br /> 24 hours 25 9/m --- --- respiratory <br /> irritation <br /> Hydrogen Sulfide Prevent odors <br /> 1 hour 0.03 --- ... <br /> Hydrocarbons Reduce oxidant <br /> (corrected for methane) accumulation <br /> 3 hours --- 0.24 0.24 <br /> Ethylene Prevent plant <br /> 1 hour 0.5 --- --- damage <br /> 8 hours 0.1 <br /> Lead Prevent health <br /> 30-day Average 1.5,# g/m3 --- --- problems <br /> Visibility Reducing Improve visibility <br /> Particles <br /> 1 observation --- ... --- <br /> (10 miles or more when <br /> relative humidity <br /> exceeds 705) - <br /> *Parts per million unless labeled fig/m3 (micrograms per cubic meter), <br /> Source: California'Air Resources Board (CARO) <br /> 39 <br />