Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
MSD INTERNATIONAL GMBH (PR BRANCH) LLC
RD 2 KM 60.3 SABANA HOYOS, ARECIBO, PR, 00612
Parent company: MERCK & CO INC
Carcinogen
— EPA classifications across all reporting years
Top chemical totals
The 10 chemicals with the highest cumulative on-site releases in pounds (lbs) across all available years.
Full release table
Rows are years. Columns show the five highest-total chemicals across all years plus each year's total release volume.
| All values in pounds (lbs) | ||||||
|---|---|---|---|---|---|---|
| Year | Methanol | Acetone | n-Hexane | Cyclohexane | Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | Total (lbs) |
| 2014 | 1,221 | — | — | — | — | 1,221 |
| 2013 | 2,214 | — | — | — | — | 2,214 |
| 2012 | 3,154 | — | — | — | — | 3,154 |
| 2011 | 3,038 | — | — | — | — | 3,038 |
| 2010 | 1,785 | — | 460 | 270 | — | 2,515 |
| 2009 | 581 | — | — | — | — | 582 |
| 2008 | — | — | — | — | — | 1 |
| 2007 | — | — | — | — | — | 5 |
| 2006 | — | — | — | — | — | 4 |
| 2005 | — | — | — | — | — | 4 |
| 2004 | — | — | — | — | — | 4 |
| 1994 | — | — | — | — | 250 | 250 |
| 1993 | — | 4,090 | — | — | — | 4,090 |
▎ Facilities report to EPA's TRI once they manufacture, process, or use a listed chemical above set thresholds. Once that threshold is crossed, they must report actual releases regardless of size — so a small number reflects genuine low-level discharge, not a data error.