Los Alamos, NM
Transparent derived index from EPA TRI / SDWIS / Superfund extracts: not an official EPA rating. Fixed caps: facilities ≤25 pts (50+ = max), log10 releases ≤25 pts, Superfund ≤25 pts (5/site), health-violation systems ≤15 pts (3/system), high-chemical facilities ≤10 pts. Bands: High ≥60, Moderate ≥30. See methodology.
Environmental data for Los Alamos in New Mexico · Population: 19,374
TRI sites such as U.S. Department of Energy Los Alamos National Laboratory; SDWIS systems such as CIELO LINDO anchor Los Alamos, NM's EPA extract. Derived burden score 19/100 (Low Risk) uses fixed national caps on density, log release volume, Superfund count, and health-flagged systems - not an official EPA rating.
Health-flagged SDWIS rows in Los Alamos include CIELO LINDO, while U.S. Department of Energy Los Alamos National Laboratory leads reported TRI pounds among local Form R filers. AQS median AQI 14 / peak 41 in 2024.
Burden score 19/100 (Low Risk) is the only weighted composite on this page. The tables below list every TRI facility, SDWIS system, and Superfund site EPA has on record for Los Alamos -- not just the names called out above -- reproducing the disclosure history as filed, not a current-safety verdict. Extract current as of 2026-08-25.
Release-over-release change
What changed for Los Alamos, NM: EPA TRI 2023 reporting year
Same facilities, both years
-16.5%
1 facilities that filed in 2022 and 2023
Whole inventory
-16.5%
19.3 thousand lb → 16.1 thousand lb, every facility that filed
- Los Alamos, NM's total reported releases fell from 19.3 thousand lb in 2022 to 16.1 thousand lb in 2023, based on EPA TRI filings.
- Los Alamos, NM's chemicals reported fell from 2 in 2022 to 1 in 2023, based on EPA TRI filings.
- Los Alamos, NM's off-site transfers fell from 18.1 thousand lb in 2022 to 15.1 thousand lb in 2023, based on EPA TRI filings.
- Los Alamos, NM's land releases fell from 1.2 thousand lb in 2022 to 1.0 thousand lb in 2023, based on EPA TRI filings.
Air Quality History (2020–2024)
EPA Air Quality Index (AQI) data showing how many days per year fall into each air quality category.
| Year | Good | Moderate | Unhealthy (SG) | Max AQI |
|---|---|---|---|---|
| 2024 | 116 (100%) | 0 | 0 | 41 |
| 2023 | 121 (100%) | 0 | 0 | 50 |
| 2022 | 112 (95%) | 5 | 1 | 103 |
| 2021 | 115 (97%) | 3 | 1 | 109 |
| 2020 | 113 (97%) | 4 | 0 | 58 |
Source: EPA Air Quality System (AQS) Annual AQI by County AQI categories: Good (0-50), Moderate (51-100), Unhealthy for Sensitive Groups (101-150), Unhealthy (151-200), Very Unhealthy (201-300), Hazardous (301+)
For real-time air quality readings and pollutant breakdowns in New Mexico, see the EPA's AirNow.gov.
Water Systems (1)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| CIELO LINDO | 38 | 7 |
TRI Facilities (1)
| # | Facility | Total Releases |
|---|---|---|
| 1 | U.S. Department of Energy Los Alamos National Laboratory | 82.2K lbs |
Cities in Los Alamos (1)
Frequently Asked Questions
What is the environmental risk level in Los Alamos, New Mexico? ▼
Are there Superfund sites in Los Alamos? ▼
How many toxic release facilities are in Los Alamos? ▼
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What does this county environmental profile show?
This county environmental profile rolls up EPA Toxics Release Inventory facility reports, Safe Drinking Water Information System public-water-system filings, and Superfund National Priorities List sites for the county boundary defined by the U.S. Census Bureau. Facility counts reflect facilities with a reporting address inside the county, not where downstream environmental effects may be observed. Population figures are from the most recent Census ACS 5-year estimate. The county detail page is updated whenever the upstream EPA programs publish revised data; see the methodology page for the documented ingest cadence and the editorial choices governing how aggregations are computed.
Read our methodology - how this data is sourced, computed, and verified.