Zip Code 21090

📍 Linthicum, MD

Toxic Air Emissions Report (2024)

Data Source: EPA TRI (2024) • Updated Nov 2025

6,509.53 lbs

State Score

/ 100

National Score

/ 100

In 2024, industrial facilities in Linthicum, MD released over 6,509.53 lbs of pollutants. The primary source was NORTHROP GRUMMAN SYSTEMS CORP, which emitted large quantities of N-Methyl-2-pyrrolidone into the local air. Air quality in 21090 is relatively consistent with regional baselines.

Top Polluting Facilities

NORTHROP GRUMMAN SYSTEMS CORP

Owned by: NORTHROP GRUMMAN CORP

N-Methyl-2-pyrrolidone released to air

6,467.00 lbs

LBS
NORTHROP GRUMMAN SYSTEMS CORP

Owned by: NORTHROP GRUMMAN CORP

Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) released to air

31 lbs

LBS
NORTHROP GRUMMAN SYSTEMS CORP Cancer Risk

Owned by: NORTHROP GRUMMAN CORP

Lead released to air

11.53 lbs

LBS

Nearby Pollution Sources (< 20 miles)

Baltimore, MD (21226) 5.8 mi away

Heavy Industrial Activity

81,443.11 lbs

Annual Emissions
Baltimore, MD (21222) 10.1 mi away

Heavy Industrial Activity

18,492.00 lbs

Annual Emissions
Baltimore, MD (21230) 4.5 mi away

Heavy Industrial Activity

6,088.75 lbs

Annual Emissions

Check Nearby Zip Codes

Report: 21078 Report: 21076 Report: 21075 Report: 21074 Report: 21113 Report: 21117

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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 Lead.

View Recommended HEPA Filters →

Chemical Breakdown

Top 5 Pollutants by Weight

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