Table 4-51: Air Pollution Trends in Selected Metropolitan Statistical Areas

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(Number of days with AQI values greater than 100 at trend sites and all monitoring sites)

Table 4-44: Estimated National Average Vehicle Emissions Rates per Vehicle by Vehicle Type using Reformulated Gasoline and Diesel

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(Grams per mile)

Table 4-43: Estimated National Average Vehicle Emissions Rates per Vehicle by Vehicle Type using Gasoline and Diesel

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(Grams per mile)

Table 4-42: Tier 2 Federal Exhaust Emissions Standards for Newly Manufactured Commercial Marine Compression-Ignition Engines

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Table 4-41: Federal Exhaust Emissions Standards for Newly Manufactured Marine Spark-Ignition Outboard, Personal Watercraft, and Jet-Boat Engines

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(g/kWh)

Table 4-40: Federal Exhaust Emissions Standards for Locomotives

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(g/bhph except where noted)

Table 4-39: Federal Exhaust Emissions Standards for Newly Manufactured and In-Use Aircraft Engines

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Table 4-38: Federal Exhaust Emissions Standards for Newly Manufactured Motorcycles

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(g/km)b

Table 4-37: Federal Exhaust Emissions Certification Standards for Newly Manufactured Gasoline- and Diesel-Powered Heavy-Duty Trucks

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(Grams per brake horsepower-hour)

Table 4-36: Federal Exhaust Emissions Certification Standards for Newly Manufactured Gasoline- and Diesel-Powered Light Heavy-Duty Trucks

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(Grams per brake horsepower-hour)