Propylene
Propylene releases at Targa Mont Belvieu Complex rose from 17k lb to 68k lb (3.9×) between 2023 and 2024.
TRI facility · TRI 2024 reporting year
Targa Mont Belvieu Complex
Total reported releases 181k lb rose sharply year over year (+43%). Total releases concentrations have more than halved since 2010.
10119 N HIGHWAY 146, Mont Belvieu, Texas · 211130 · Natural Gas Processing · operated by Targa Resources CORP
Anomaly engine
Notable Signals
Ethylene
Ethylene at Targa Mont Belvieu Complex have more than three-quarters since 2010 (through 2024).
Propylene
Propylene at Targa Mont Belvieu Complex have more than halved since 2010 (through 2024).
Total reported releases
Total reported releases at Targa Mont Belvieu Complex have more than halved since 2010 (through 2024).
Chemicals reported · most recent year
What This Facility Releases
Propylene
Propylene concentrations have more than halved since 2010.
n-Hexane
n-Hexane concentrations have more than doubled since 2010.
Hydrogen sulfide
Hydrogen sulfide concentrations have fallen 28% since 2022.
Ethylene
Ethylene concentrations have more than halved since 2010.
Cyclohexane
Cyclohexane concentrations have more than halved since 2010.
Benzene
Benzene concentrations have more than halved since 2010.
Xylene (mixed isomers)
Xylene (mixed isomers) concentrations have fallen 33% since 2010.
Nickel
Nickel volumes here are too small to anchor a multi-year trend; YoY movement is still shown above.
Equity context · ACS 2018-2022 block-group demographics
Who Lives Next To This Facility
Within 3 miles of this facility (4 Census block groups, population-weighted demographics): a population of 16,446. Why we surface this →
12.6%
Low-income
34.7%
People of color
6.6%
Under age 5
11.6%
Over age 64
Source: Census ACS 2018-2022 block-group demographics, population-weighted across the 3-mile buffer around this facility (from USEPA-clone/EJAM-open blockgroupstats). Indicator-level percentile and EJ-disparity scores are surfaced on the county page and the state page — they describe wider regional exposure burdens, not effects attributable to a single facility.
Source. EPA Toxics Release Inventory · retrieved 2026-05-07. Reporting year 2024. TRI is a federal public-domain dataset under 17 USC §105.
What this is not. TRI quantifies releases reported by the facility under EPCRA §313 — not ambient air or water concentrations measured at receptors. We do not attribute individual health outcomes to specific facilities; that exceeds what the data can support.