Ammonia
Ammonia at Ascend Performance Materials-Chocolate Bayou Plant have risen 74% since 2010 (through 2024).
TRI facility · TRI 2024 reporting year
Ascend Performance Materials-Chocolate Bayou Plant
Total reported releases 18.7M lb held roughly steady year over year (+1%). Total releases concentrations are roughly unchanged from 2010.
1 MONSANTO RD FM 2917, Alvin, Texas · 325199 · Chemicals · operated by Ascend Performance Materials Holdings INC
Anomaly engine
Notable Signals
Pyridine
Pyridine releases at Ascend Performance Materials-Chocolate Bayou Plant rose from 26k lb to 40k lb between 2023 and 2024.
Formaldehyde
Formaldehyde releases at Ascend Performance Materials-Chocolate Bayou Plant rose from 22k lb to 33k lb between 2023 and 2024.
Acrylic acid
Acrylic acid at Ascend Performance Materials-Chocolate Bayou Plant have more than three-quarters since 2010 (through 2024).
Chemicals reported · most recent year
What This Facility Releases
Ammonia
Ammonia concentrations are up 74% since 2010.
Acrylonitrile
Acrylonitrile concentrations have fallen 17% since 2010.
Acrylamide
Acrylamide concentrations have fallen 27% since 2010.
Formic acid
Formic acid concentrations are up 33% since 2012.
Methanol
Methanol concentrations are up 24% since 2010.
Cyanide compounds
Cyanide compounds concentrations have more than doubled since 2012.
Hydrogen cyanide
Hydrogen cyanide concentrations have more than doubled since 2010.
Acetonitrile
Acetonitrile concentrations have more than halved since 2010.
Equity context · ACS 2018-2022 block-group demographics
Who Lives Next To This Facility
Within 3 miles of this facility (18 Census block groups, population-weighted demographics): a population of 24,040. Why we surface this →
30.2%
Low-income
52.6%
People of color
5.7%
Under age 5
15.4%
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.