Zip Code 73533

📍 Duncan, OK

Toxic Air Emissions Report (2024)

Data Source: EPA TRI (2024) • Updated Nov 2025

2,966.00 lbs

State Score

/ 100

National Score

/ 100

In 2024, industrial facilities in Duncan, OK released over 2,966.00 lbs of pollutants. The primary source was DCP MIDSTREAM LP/SHOLEM GAS PLANT, which emitted Cyclohexane into the local air. Air quality in 73533 is relatively consistent with regional baselines.

Top Polluting Facilities

DCP MIDSTREAM LP/SHOLEM GAS PLANT

Owned by: PHILLIPS 66

Cyclohexane released to air

1,200.00 lbs

LBS
DCP MIDSTREAM LP/SHOLEM GAS PLANT

Owned by: PHILLIPS 66

Methanol released to air

660.00 lbs

LBS
DCP MIDSTREAM LP/SHOLEM GAS PLANT

Owned by: PHILLIPS 66

n-Hexane released to air

440.00 lbs

LBS
DCP MIDSTREAM LP/SHOLEM GAS PLANT Cancer Risk

Owned by: PHILLIPS 66

Benzene released to air

360.00 lbs

LBS
DCP MIDSTREAM LP/SHOLEM GAS PLANT

Owned by: PHILLIPS 66

Toluene released to air

260.00 lbs

LBS
DCP MIDSTREAM LP/SHOLEM GAS PLANT

Owned by: PHILLIPS 66

Xylene (mixed isomers) released to air

46 lbs

LBS

Nearby Pollution Sources (< 20 miles)

Rush Springs, OK (73082) 18.2 mi away

Heavy Industrial Activity

16,038.00 lbs

Annual Emissions
Velma, OK (73491) 15.9 mi away

Heavy Industrial Activity

10,662.00 lbs

Annual Emissions
Marlow, OK (73055) 9.1 mi away

Heavy Industrial Activity

1,186.00 lbs

Annual Emissions

Check Nearby Zip Codes

Report: 73532 Report: 73536

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Protect Your Lungs

Because toxic gases and VOCs were detected in this area (likely from the Toluene), standard filters are not enough. We strongly recommend an Activated Carbon purifier to adsorb these fumes.

View Recommended Carbon Filters →

Chemical Breakdown

Top 5 Pollutants by Weight

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