Propylene
CAS # 115-07-1
68,851,763 lbs total reported releases across all facilities and years.
Facilities listed below reported releases of this chemical to the EPA Toxic Release Inventory (TRI). Quantities are self-reported annual totals in pounds, broken out by release pathway. Click any facility name for its full compliance profile.
National Release Trend (2015–2024)
+66% overall
| Year | Total Released (lbs) | Reporting Facilities | vs Prior Year |
|---|---|---|---|
| 2015 | 7,069,934 | 460 | — |
| 2016 | 6,602,489 | 461 | -7% |
| 2017 | 6,963,568 | 433 | +5% |
| 2018 | 6,451,275 | 435 | -7% |
| 2019 | 3,559,423 | 236 | -45% |
| 2020 | 6,437,187 | 417 | +81% |
| 2021 | 6,183,262 | 409 | -4% |
| 2022 | 6,778,328 | 431 | +10% |
| 2023 | 7,065,810 | 431 | +4% |
| 2024 | 11,740,488 | 419 | +66% |
Top Releasing Industries
| Industry Sector | Total Released (lbs) | Facilities |
|---|---|---|
| Construction | 0 | 1 |
| Manufacturing | 64,906,339 | 484 |
| Mining, Quarrying, and Oil and Gas Extraction | 2,486,085 | 56 |
| Wholesale Trade | 607,791 | 84 |
| Transportation and Warehousing | 428,243 | 6 |
| Administrative and Support and Waste Management | 264,921 | 5 |
| Utilities | 147,351 | 3 |
| Public Administration | 6,783 | 5 |
Worst Water Discharge Exceedances
Facilities that exceeded their permit limits for this chemical in discharge monitoring reports
| Facility | Reported | Limit | Exceedance | Period |
|---|---|---|---|---|
|
SOUTHWEST AIRLINES AT LONG ISLAND MACARTHUR AIRPORT
RONKONKOMA, NY
|
2,540.00 mg/L | 1.00 | +253,900% | Feb 2024 |
|
SOUTHWEST AIRLINES AT LONG ISLAND MACARTHUR AIRPORT
RONKONKOMA, NY
|
2,270.00 mg/L | 1.00 | +226,900% | Jan 2025 |
|
NEW SPS CROSSFOLDS LLC
HAUPPAUGE, NY
|
7.00 mg/L | 1.00 | +99,999% | Nov 2019 |
|
SOUTHWEST AIRLINES AT LONG ISLAND MACARTHUR AIRPORT
RONKONKOMA, NY
|
889.00 mg/L | 1.00 | +88,800% | Dec 2024 |
|
SOUTHWEST AIRLINES AT LONG ISLAND MACARTHUR AIRPORT
RONKONKOMA, NY
|
760.00 mg/L | 1.00 | +75,900% | Mar 2023 |
|
SOUTHWEST AIRLINES AT LONG ISLAND MACARTHUR AIRPORT
RONKONKOMA, NY
|
702.00 mg/L | 1.00 | +70,100% | Feb 2025 |
|
SOUTHWEST AIRLINES AT LONG ISLAND MACARTHUR AIRPORT
RONKONKOMA, NY
|
447.00 mg/L | 1.00 | +44,600% | Feb 2021 |
|
SOUTHWEST AIRLINES AT LONG ISLAND MACARTHUR AIRPORT
RONKONKOMA, NY
|
352.00 mg/L | 1.00 | +35,100% | Feb 2023 |
|
SOUTHWEST AIRLINES AT LONG ISLAND MACARTHUR AIRPORT
RONKONKOMA, NY
|
249.00 mg/L | 1.00 | +24,800% | Nov 2024 |
|
SOUTHWEST AIRLINES AT LONG ISLAND MACARTHUR AIRPORT
RONKONKOMA, NY
|
173.00 mg/L | 1.00 | +17,200% | Nov 2025 |
|
SOUTHWEST AIRLINES AT LONG ISLAND MACARTHUR AIRPORT
RONKONKOMA, NY
|
171.00 mg/L | 1.00 | +17,000% | Jan 2024 |
|
CELANESE POLYMER PRODUCTS LLC
WASHINGTON, WV
|
0.05 kg/d | 0.00 | +16,656% | Nov 2024 |
|
SOUTHWEST AIRLINES AT LONG ISLAND MACARTHUR AIRPORT
RONKONKOMA, NY
|
124.00 mg/L | 1.00 | +12,300% | Jan 2026 |
|
CELANESE POLYMER PRODUCTS LLC
WASHINGTON, WV
|
0.01 kg/d | 0.00 | +9,688% | Nov 2024 |
|
SOUTHWEST AIRLINES AT LONG ISLAND MACARTHUR AIRPORT
RONKONKOMA, NY
|
81.70 mg/L | 1.00 | +8,070% | Dec 2019 |
|
SOUTHWEST AIRLINES AT LONG ISLAND MACARTHUR AIRPORT
RONKONKOMA, NY
|
74.10 mg/L | 1.00 | +7,310% | Mar 2025 |
|
SOUTHWEST AIRLINES AT LONG ISLAND MACARTHUR AIRPORT
RONKONKOMA, NY
|
48.80 mg/L | 1.00 | +4,780% | Mar 2022 |
|
SOUTHWEST AIRLINES AT LONG ISLAND MACARTHUR AIRPORT
RONKONKOMA, NY
|
43.40 mg/L | 1.00 | +4,240% | Feb 2022 |
|
SOUTHWEST AIRLINES AT LONG ISLAND MACARTHUR AIRPORT
RONKONKOMA, NY
|
37.90 mg/L | 1.00 | +3,690% | Jan 2022 |
|
CELANESE POLYMER PRODUCTS LLC
WASHINGTON, WV
|
0.01 kg/d | 0.00 | +2,222% | Oct 2024 |