Total reported releases 246k lb fell meaningfully year over year (-35%). Total releases concentrations have more than halved since 2010.
455 N MAIN ST, Calvert City, Kentucky · 325199 · Chemicals · operated by Ashland LLC
Nitrate compounds (water dissociable; reportable only when in aqueous solution) releases at Isp Chemicals LLC fell from 201k lb to 61k lb (70% lower) between 2023 and 2024.
Ammonia at Isp Chemicals LLC have more than three-quarters since 2010 (through 2024).
Total reported releases at Isp Chemicals LLC have more than halved since 2010 (through 2024).
Nitrate compounds (water dissociable; reportable only when in aqueous solution) at Isp Chemicals LLC have more than halved since 2010 (through 2024).
Ammonia concentrations have more than halved since 2010.
Nitrate compounds (water dissociable; reportable only when in aqueous solution) concentrations have more than halved since 2010.
Acetaldehyde concentrations are up 17% since 2010.
Methanol concentrations have fallen 18% since 2010.
Toluene concentrations are roughly unchanged from 2021.
Styrene concentrations have more than doubled since 2012.
Benzene concentrations are up 29% since 2010.
Copper concentrations have fallen 14% since 2010.
Within 3 miles of this facility (4 Census block groups, population-weighted demographics): a population of 3,622. 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.