Zip Code 93550
📍 Palmdale, CA
Toxic Air Emissions Report (2024)
Data Source: EPA TRI (2024) • Updated Nov 2025
20,264.00 lbs
State Score
12
/ 100
National Score
28
/ 100
In 2024, industrial facilities in Palmdale, CA released over 20,264.00 lbs of pollutants. The primary source was USAF PLANT 42 SITE 4 NORTHROP GRUMMAN SYSTEMS CORP, which emitted large quantities of sec-Butyl alcohol into the local air. Residents of 93550 face significantly higher exposure risks than the national average.
Top Polluting Facilities
- USAF PLANT 42 SITE 4 NORTHROP GRUMMAN SYSTEMS CORPOwned by: nansec-Butyl alcohol released to air10,506.00 lbsLBS
- USAF PLANT 42 SITE 4 NORTHROP GRUMMAN SYSTEMS CORP Cancer RiskOwned by: nanMethyl isobutyl ketone released to air9,758.00 lbsLBS
Nearby Pollution Sources (< 20 miles)
- Palmdale, CA (93599) 11.6 mi awayHeavy Industrial Activity10,076.00 lbsAnnual Emissions
- Littlerock, CA (93543) 8.7 mi awayHeavy Industrial Activity783.36 lbsAnnual Emissions
- Monrovia, CA (91016) 19.3 mi awayHeavy Industrial Activity351.30 lbsAnnual Emissions
Check Nearby Zip Codes
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Protect Your Lungs
The primary pollutants detected here are likely heavy particulates. To protect your lungs, ensure you use a True HEPA (H13) filter, which captures 99.97% of airborne particles like sec-Butyl alcohol.
View Recommended HEPA Filters →Chemical Breakdown
Top 5 Pollutants by Weight
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