Merck & Co Inc
7 facilities · 7 states · 172.6K lbs total releases
According to the EPA Toxics Release Inventory, Merck & Co Inc is the reported parent of 7 Form R facilities across 7 states, disclosing 172.6K lbs of toxic releases. 2 of 22 reported chemicals carry a carcinogen classification in the TRI extract. The heaviest-reporting state by release volume is Pennsylvania (123.3K lbs). Those TRI figures remain self-reported disclosure pounds for Merck & Co Inc, including carcinogen-flagged substances, not a measured public-health risk score.
Release-over-release change
What changed for Merck & Co Inc: EPA TRI 2023 reporting year
Same facilities, both years
-22.1%
7 facilities that filed in 2022 and 2023
Whole inventory
-22.1%
29.5 thousand lb → 23.0 thousand lb, every facility that filed
- Merck & Co Inc's total reported releases fell from 29.5 thousand lb in 2022 to 23.0 thousand lb in 2023, based on EPA TRI filings.
- Merck & Co Inc's water releases rose from 208 lb in 2022 to 1.6 thousand lb in 2023, based on EPA TRI filings.
- Merck & Co Inc's off-site transfers fell from 3.4 thousand lb in 2022 to 245 lb in 2023, based on EPA TRI filings.
- Merck & Co Inc's air releases fell from 25.9 thousand lb in 2022 to 21.1 thousand lb in 2023, based on EPA TRI filings.
TRI parent disclosure trail
Read Merck & Co Inc from filing to facility
Largest Form R sites under this parent: Cherokee Pharmaceuticals Llc.; Merck Sharp & Dohme LLC; Merck Sharp & Dohme LLC; Merck Animal Health. Neighbor parents on the disclosure ladder: US Steel Corp; Keystone-Conemaugh Projects LLC. Largest disclosed chemicals by pounds: Methanol; Dichloromethane; Nitrate compounds (water dissociable; reportable only when in aqueous solution); Acetonitrile; Toluene. Heaviest-reporting states in this extract: Pennsylvania; Virginia; New Jersey. Industry labels on the parent rollup: Chemicals. Start from those named sites and neighbors rather than a generic parent blurb; pounds stay disclosure, not risk.
Largest Form R sites under this parent: Cherokee Pharmaceuticals Llc.; Merck Sharp & Dohme LLC; Merck Sharp & Dohme LLC; Merck Animal Health. Neighbor parents on the disclosure ladder: US Steel Corp; Keystone-Conemaugh Projects LLC. Largest disclosed chemicals by pounds: Methanol; Dichloromethane; Nitrate compounds (water dissociable; reportable only when in aqueous solution); Acetonitrile; Toluene. Heaviest-reporting states in this extract: Pennsylvania; Virginia; New Jersey. Industry labels on the parent rollup: Chemicals.
Merck & Co Inc ranks #1,359 of 4,988 slug-merged TRI parents, a smaller disclosed-volume parent relative to the national Form R parent set. Merck & Co Inc spans 7 states in this extract, placing it among the broader national TRI parent footprints. Releases are facility-concentrated: Cherokee Pharmaceuticals Llc. accounts for most of Merck & Co Inc's disclosed pounds, so peer comparisons should weight that site, not an even portfolio average.
Parent aggregation for Merck & Co Inc follows facility-reported names. Compare the named neighbors (US Steel Corp; Keystone-Conemaugh Projects LLC) before treating rank as a hazard score; TRI stays self-reported and unweighted by toxicity.
Where Merck & Co Inc sits among TRI parents
Merck & Co Inc sits on a disclosure ladder beside US Steel Corp and Keystone-Conemaugh Projects LLC. Open those parents for a different facility count, state span, and chemical mix.
Higher disclosed volume
- US Steel Corp · rank #1,357 · 40.6M lbs
- Keystone-Conemaugh Projects LLC · rank #1,358 · 15.0M lbs
Largest chemicals disclosed by Merck & Co Inc
Methanol; Dichloromethane; Nitrate compounds (water dissociable; reportable only when in aqueous solution); Acetonitrile; Toluene lead the Form R pound rollup for this parent, including filings such as Cherokee Pharmaceuticals Llc.. Pound totals, not toxicity-weighted risk.
| Chemical | Disclosed lbs |
|---|---|
| Methanol | 76.5K lbs |
| Dichloromethane | 70.1K lbs |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 13.4K lbs |
| Acetonitrile | 12.7K lbs |
| Toluene | 12.1K lbs |
Where does this company operate?
| State | Facilities | Total Releases |
|---|---|---|
| Pennsylvania | 1 | 123.3K lbs |
| Virginia | 1 | 40.6K lbs |
| New Jersey | 1 | 8.7K lbs |
| Nebraska | 1 | 81 lbs |
| Kansas | 1 | 14 lbs |
| Delaware | 1 | 6 lbs |
| Minnesota | 1 | 0 lbs |
Facilities (7)
| Facility | Releases |
|---|---|
| Cherokee Pharmaceuticals Llc. Riverside, PA | 123.3K lbs |
| Merck Sharp & Dohme LLC Elkton, VA | 40.6K lbs |
| Merck Sharp & Dohme LLC Rahway, NJ | 8.7K lbs |
| Merck Animal Health Elkhorn, NE | 81 lbs |
| Intervet Inc. De Soto, KS | 14 lbs |
| Intervet Inc. (dba Merck Animal Health) Millsboro, DE | 6 lbs |
| Intervet Inc. Worthington, MN | 0 lbs |
Frequently Asked Questions
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Compare beyond the release ladder
Nationwide peers by disclosed pounds & facility count
Cross-portfolio TRI parents nearest Merck & Co Inc on total disclosed release pounds (172.6K lbs) and reporting facility count (7). Release-volume peers include Skf USA Inc, Modern Welding Co Inc, Morganite Industries Inc. Facility-count peers include A O Smith Corp, Ahf Products LLC, Aisin Holdings of America. Neighborhoods are forced disjoint so each axis surfaces a different set of parents.
Similar disclosed release pounds
Nearest parents (≥3 facilities, ≥10k lbs) by absolute TRI disclosed pounds, not rank-adjacent ladder neighbors.
Similar facility count
Nearest parents by reporting-site count (deduped against the release-pound neighborhood).
About This Data
EPA TRI parent totals cover all media. This extract's heaviest states for the parent are Pennsylvania, Virginia, New Jersey; facility-reported names can vary across subsidiaries.
Source: U.S. Environmental Protection Agency, TRI Basic Data Files
What to do with Merck & Co Inc's TRI parent record
From Merck & Co Inc, open Cherokee Pharmaceuticals Llc. or compare against US Steel Corp rather than reading rank alone.
- Open the largest Form R site for Merck & Co Inc (Cherokee Pharmaceuticals Llc. in PA). Largest facility
- Compare against Keystone-Conemaugh Projects LLC, the next-higher disclosed-volume parent. Higher-volume parent
- Browse the full parent release ranking to see where Merck & Co Inc sits among all slug-merged TRI parents. All parent companies
Rank and peers (US Steel Corp, Keystone-Conemaugh Projects LLC) are disclosure volume only, not toxicity-weighted risk or enforcement status.
Use and verify this record
Merck & Co Inc's record groups disclosed TRI parent-company filings so readers can compare reporting context without treating the total as a measure of risk.
Company release figures are computed directly from EPA Toxic Release Inventory data; source names and the record-linking method are documented in the methodology.
Primary sources
- EPA Toxics Release Inventory Basic Data Files - annual facility-level chemical-release disclosures
PlainEnviro renders public EPA records directly from its data pipeline; no figure on this page is typed in by an editor. See the editorial standards and corrections policy for how source changes and reported errors are handled.