Calculators › Potential to Emit Calculator
🏭

Potential to Emit (PTE) Calculator

Clean Air Act Title V & PSD Applicability

Professional PTE Calculator
Calculates potential to emit (PTE) for combustion equipment using EPA AP-42 emission factors. Determines Title V major source status and PSD applicability based on annual emissions.

Equipment Type

Uncontrolled 4-stroke rich-burn engine. Common for compressor drivers.

Equipment Rating

Operating Hours

hrs/yr

PTE assumes maximum operational capacity. 8,760 = 24/7 operation.

Emission Controls

Location

Nonattainment areas have lower major source thresholds for NSR applicability.

Learn the Engineering Theory

Understand air permitting, PTE calculations, and Title V requirements

Read Engineering Guide →

Major Source Thresholds

Title V (40 CFR 70):
  • 100 tpy any criteria pollutant
  • 10 tpy single HAP
  • 25 tpy combined HAPs
PSD (Attainment):
  • 250 tpy (most sources)
  • 100 tpy (28 listed categories)
NSR (Nonattainment):
  • Marginal: 100 tpy
  • Moderate: 100 tpy
  • Serious: 50 tpy
  • Severe: 25 tpy
  • Extreme: 10 tpy

Limitations & Assumptions

  • Uses EPA AP-42 Chapter 3.2 emission factors (July 2000)
  • PTE assumes maximum design capacity and continuous operation unless limited
  • Control efficiencies are typical values - actual may vary by manufacturer
  • Does not include fugitive emissions, tanks, or other ancillary sources
  • Consult state/local agencies for specific permitting requirements

Standards & References

  • EPA AP-42
    Compilation of Air Pollutant Emission Factors, Chapter 3.2
  • 40 CFR Part 70
    Title V Operating Permits
  • 40 CFR Part 51/52
    Prevention of Significant Deterioration (PSD)
  • 40 CFR Part 63
    NESHAP for Stationary RICE

Related Calculators

📋

Major Source Threshold

Determine Title V and PSD applicability
⚡

Compressor HP

Calculate compressor horsepower requirements
🔄

Gas Conversions

Convert between gas measurement units
💰

Operating Costs

Estimate fuel and operating costs