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A Delta airplane flies above a river and snow‑dusted landscape, viewed from the front and slightly above. Patches of forest, water, and rugged terrain stretch into the distance beneath a partly cloudy sky
A Delta airplane flies above a river and snow‑dusted landscape, viewed from the front and slightly above. Patches of forest, water, and rugged terrain stretch into the distance beneath a partly cloudy sky

Environmental Data

Hazardous Waste (tons)

2023 2024 2025
Waste Totals 700 801 808

Regulated Air Emissions from Stationary Sources (metric tons)

2023 2024 2025
Nitrogen Oxides (NOx) 149 155 177
Carbon Monoxide (CO) 55 63 68
Sulfur Dioxide (SO2) 13 15 17
Particulate Matter (PM) 29 29 29
Volatile Organic Compounds (VOCs) 85 180 180
Hazardous Air Pollutants (HAPs) 29 23 30

Penalties Associated with Notices of Violation1

2023 2024 2025
Penalties $1,000 $6,000 $750
  1. Beginning in 2023, Delta started reporting on environmental penalties assessed instead of Notices of Violation, because notices are allegations and penalties assessed are more reflective of a final agency determination. The reported penalties include fines imposed by environmental regulatory authorities for noncompliance with air, water, waste and chemical management requirements. They do not include penalties for alleged noise violations.(a)