TRI facility · TRI 2024 reporting year

Nippon Chemical Texas INC

Total reported releases 18k lb more than tripled year over year (+234%). Total releases concentrations have more than doubled since 2010.

10500 BAY AREA BLVD, Pasadena, Texas · 325110 · Chemicals · operated by Eneos USA INC

See Harris County Chemicals Equity context How we read TRI

TOTAL RELEASES · 2010–2024

Anomaly engine

Notable Signals

YEAR-OVER-YEAR SURGE · RELEASE SHIFT

Dicyclopentadiene

Dicyclopentadiene releases at Nippon Chemical Texas INC rose from 2k lb to 14k lb (6.4×) between 2023 and 2024.

Chemicals reported · most recent year

What This Facility Releases

GENERALCAS 77-73-6

Dicyclopentadiene

14k lb · +539% YoY

Dicyclopentadiene concentrations have more than doubled since 2013.

CARCINOGENCAS 71-43-2

Benzene

1k lb · +3% YoY

Benzene concentrations have more than halved since 2010.

RESPIRATORYCAS 108-88-3

Toluene

1k lb · -6% YoY

Toluene concentrations are up 24% since 2010.

CARCINOGENCAS 106-99-0

1,3-Butadiene

808 lb · +16% YoY

1,3-Butadiene concentrations have fallen 47% since 2010.

CARCINOGENCAS 91-20-3

Naphthalene

303 lb · -8% YoY

Naphthalene concentrations have fallen 47% since 2011.

GENERALCAS 115-07-1

Propylene

302 lb · — YoY

Propylene concentrations have more than halved since 2010.

RESPIRATORYCAS 108-90-7

Chlorobenzene

100 lb · — YoY

Chlorobenzene concentrations have more than halved since 2011.

Equity context · ACS 2018-2022 block-group demographics

Who Lives Next To This Facility

Within 3 miles of this facility (14 Census block groups, population-weighted demographics): a population of 22,941. Why we surface this →

POPULATION SHARE

19.6%

Low-income

POPULATION SHARE

35.1%

People of color

POPULATION SHARE

4.6%

Under age 5

POPULATION SHARE

16.7%

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.