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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

77°F
Mostly Cloudy
  • High: 109°F
  • Low: 67°F
  • Sunrise: 5:59 AM PDT
  • Sunset: 8:11 PM PDT
  • Feels Like: 77°F
  • Wind Chill: 77°F
  • Visibility: 10 mi.
  • Dew Point: 53°
  • Relative Humidity: 43%