Ammonia
Ammonia releases at Honeywell Engines Systems & Services rose from 6k lb to 17k lb (2.9×) between 2023 and 2024.
Total reported releases 56k lb fell meaningfully year over year (-21%). Total releases concentrations have more than doubled since 2010.
111 S 34TH ST MS: 158 HSE, Phoenix, Arizona · 336412 · Transportation Equipment · operated by Honeywell International INC
Ammonia releases at Honeywell Engines Systems & Services rose from 6k lb to 17k lb (2.9×) between 2023 and 2024.
Methanol releases at Honeywell Engines Systems & Services fell from 17k lb to 6k lb (64% lower) between 2023 and 2024.
Ammonia concentrations have more than doubled since 2011.
Chromium concentrations have more than doubled since 2010.
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) concentrations have more than doubled since 2011.
Nickel concentrations have more than halved since 2023.
Methanol concentrations have fallen 29% since 2010.
Lead concentrations have more than doubled since 2010.
Naphthalene concentrations have more than doubled since 2023.
Within 3 miles of this facility (71 Census block groups, population-weighted demographics): a population of 92,614. Why we surface this →
Low-income
People of color
Under age 5
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.