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Exhaust gas recirculation

Carbon monoxide and hydrocarbons are converted to harmless gases by catalytic converters and air injection emission control systems. However, there's a third pollutant in automobile exhaust that neither systems deal with.
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Fresno, CA

70°F
Partly Cloudy
  • High: 90°F
  • Low: 55°F
  • Sunrise: 6:22 AM PDT
  • Sunset: 7:35 PM PDT
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  • Wind Chill: 70°F
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  • Dew Point: 44°
  • Relative Humidity: 39%