EPA TRI Facility · Chemicals
Cambridge Isotope Laboratories Inc
Andover, MA · Parent: Otsuka America Inc
- Total releases
- 3.7K lbs
- Chemicals reported
- 3
- Carcinogens
- 2
- Primary pathway
- Off-site Transfers
Cambridge Isotope Laboratories Inc has reported 3.7K lbs of toxic releases across 3 chemicals to the EPA Toxic Release Inventory, based on annual facility disclosures from 2019 through 2024. Of the chemicals reported, 2 are classified as carcinogens, representing 67% of the facility's chemical profile. The facility operates in the Chemicals sector. The primary release pathway is off-site transfers, accounting for 99% of total releases. All release data shown below is self-reported to the EPA under the Emergency Planning and Community Right-to-Know Act (EPCRA) Section 313.
Cambridge Isotope Laboratories Inc files annual Form R disclosures to the EPA Toxics Release Inventory under EPCRA Section 313, classified under NAICS 325199 (Chemicals). Across 1 year of records spanning 2020–2020, the site has disclosed 3.7K lbs in cumulative toxic releases across 3 distinct chemicals, 2 of which (67%) carry a carcinogenic classification.
The dominant release pathway is off-site transfers at 3.7K lbs (99.5% of total volume), followed by air releases at 0.5%. The facility is operated under parent company Otsuka America Inc.
TRI Form R values are self-reported estimates, not measured stack emissions, and treat every pound of reported chemical equally regardless of toxicity. Inclusion in the TRI database does not establish a health risk to nearby residents; it documents the annual reporting record that Cambridge Isotope Laboratories Inc has filed with the EPA under federal community right-to-know requirements.
Quick Facts
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See how Cambridge Isotope Laboratories Inc stacks up against nearby facilities and the typical reporter.
100% less than the comparison
67% less than the comparison
Comparison reflects reported pounds and chemical counts, not toxicity or health risk. Averages cover facilities reporting any release.
How does this facility release toxic chemicals?
How Cambridge Isotope Laboratories Inc releases toxic chemicals into the environment. Total: 3.7K lbs.
Chemical Releases
Aggregated across all reporting years (2020–2020). 2 of 3 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Dichloromethane | 3.5K lbs | Carcinogen |
| Chloroform | 199 lbs | Carcinogen |
| Mercury | 13 lbs | - |
Location
Other Facilities in Massachusetts
About TRI Data
Data as of 2024 reporting year. Source: U.S. Environmental Protection Agency (EPA) Toxic Release Inventory.
Data comes from the EPA Toxic Release Inventory (TRI) program. Facilities that manufacture, process, or otherwise use listed toxic chemicals above threshold amounts are required to report annually to the EPA.
Release quantities are self-reported by the facility and may represent estimates rather than exact measurements. "Total releases" includes releases to air, water, land, and off-site transfers for disposal. Quantities shown here are aggregated across all available reporting years.
PlainEnviro presents this data without advocacy framing. The presence of a facility in the TRI database does not by itself indicate a health risk. For site-specific health questions, consult your local environmental or health agency.
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Related
Sources & how this page was built
Every figure on this page traces to public, federal-government data on Cambridge Isotope Laboratories Inc. The records below are the primary sources; our methodology explains how they are joined, computed, and verified.
- EPA Toxics Release Inventory (TRI) Basic Data Files - annual self-reported chemical-release filings. epa.gov
- EPA TRI Program, chemical & reporting reference - what each chemical is and how releases are counted. epa.gov
- EPA Facility Registry Service (FRS) - authoritative facility location and identity. epa.gov
- EPA Enforcement & Compliance History Online (ECHO) - regulatory and compliance context. echo.epa.gov
- EPA Envirofacts - the EPA data warehouse that exposes these datasets. enviro.epa.gov
Retrieved and formatted by PlainEnviro Editorial. TRI release totals are self-reported estimates, not measured stack emissions.