CHEMGENES CORP — Emissions Trend

Wilmington, MA · 2019–2023

This page assembles 5 consecutive years of EPA Toxics Release Inventory Form R filings for CHEMGENES CORP, spanning 2019–2023. Each annual total aggregates on-site air emissions, surface-water discharges, land disposal, and off-site transfers reported by the facility under EPCRA Section 313, which requires disclosure whenever a listed chemical is manufactured, processed, or otherwise used above threshold quantities.

Reported releases opened at 6.5K in 2019 and closed at 166.5K in 2023 — a increasing of +2470.7% over the window. The chart below stacks the four TRI release media (air, water, land, off-site) and overlays the yearly total. The top contributor by cumulative mass is Chloroform at 455.6K, followed by n-Hexane at 97.8K.

Because TRI figures are estimated, not metered, year-over-year deltas can reflect methodology revisions, ownership changes, or shifts in what a facility classifies as reportable — not only physical emission changes. Treat the trajectory as a disclosure record, and cross-reference with the EPA Enforcement and Compliance History Online (ECHO) system for the fuller regulatory picture on this chemicals facility.

Overall Trend
↑ Increasing (+2470.7%)
2019 Total
6.5K lbs
2023 Total
166.5K lbs

Total Releases by Category

Air
Water
Land
Offsite Transfer
045.6K91.1K136.7K182.2K227.8K 20192020202120222023 Pounds Released

Year-over-Year Comparison

Year Total Chemicals YoY Change
2019 6.5K lbs 3
2020 95.1K lbs 4 +1369.4%
2021 227.8K lbs 4 +139.4%
2022 134.8K lbs 3 -40.8%
2023 166.5K lbs 4 +23.5%

Top Chemicals by Year

Chemical 20192020202120222023 Total
Chloroform 3.0K 92.3K 171.4K 89.1K 99.8K 455.6K
n-Hexane 2.8K 1.5K 22.3K 33.2K 38.1K 97.8K
Acetonitrile 817 24.9K 12.6K 16.8K 55.1K
Dichloromethane 11.7K 11.7K
Methanol 692 543 9.1K 10.4K

About This Data

Trend data is sourced from the EPA Toxic Release Inventory (TRI). Facilities report annually. Release quantities are self-reported estimates. Year-over-year changes may reflect changes in production, pollution control measures, reporting methodology, or chemical thresholds.

A decrease in reported releases does not necessarily indicate improved environmental performance, as it may reflect production cutbacks, facility closures, or changes in reporting requirements. Similarly, increases may reflect expanded production rather than degraded environmental practices.

Frequently Asked Questions

Is CHEMGENES CORP getting cleaner or dirtier?
Based on EPA TRI data from 2019–2023, CHEMGENES CORP's total toxic releases have increased by approximately 2471%.
What time period does this trend data cover?
This page shows 5 years of EPA Toxic Release Inventory data from 2019–2023. Release quantities are self-reported estimates filed annually by the facility.