Zip Code 91786
📍 Upland, CA
Toxic Air Emissions Report (2024)
Data Source: EPA TRI (2024) • Updated Nov 2025
208.49 lbs
State Score
52
/ 100
National Score
67
/ 100
In 2024, industrial facilities in Upland, CA released over 208.49 lbs of pollutants. The primary source was HOLLIDAY ROCK - FOOTHILL, which emitted Aluminum (fume or dust) into the local air. Air quality in 91786 is relatively consistent with regional baselines.
Top Polluting Facilities
- HOLLIDAY ROCK - FOOTHILLOwned by: HOLLIDAY ROCK CO INCAluminum (fume or dust) released to air192.91 lbsLBS
- HOLLIDAY ROCK - FOOTHILLOwned by: HOLLIDAY ROCK CO INCManganese released to air9.95 lbsLBS
- HOLLIDAY ROCK - FOOTHILLOwned by: HOLLIDAY ROCK CO INCLead compounds released to air1.7 lbsLBS
- HOLLIDAY ROCK - FOOTHILLOwned by: HOLLIDAY ROCK CO INCCopper released to air1.59 lbsLBS
- HOLLIDAY ROCK - FOOTHILL Cancer RiskOwned by: HOLLIDAY ROCK CO INCNickel released to air1.46 lbsLBS
- HOLLIDAY ROCK - FOOTHILL Cancer RiskOwned by: HOLLIDAY ROCK CO INCPolycyclic aromatic compounds released to air0.83 lbsLBS
- HOLLIDAY ROCK CO - MOUNTAIN VIEWOwned by: HOLLIDAY ROCK CO INCLead compounds released to air0.034 lbsLBS
- HOLLIDAY ROCK - FOOTHILLOwned by: HOLLIDAY ROCK CO INCBenzo[g,h,i]perylene released to air0.013 lbsLBS
Nearby Pollution Sources (< 20 miles)
- Anaheim, CA (92807) 19.4 mi awayHeavy Industrial Activity85,284.00 lbsAnnual Emissions
- Jurupa Valley, CA (91752) 11.4 mi awayHeavy Industrial Activity69,997.03 lbsAnnual Emissions
- Rancho Cucamonga, CA (91730) 3.7 mi awayHeavy Industrial Activity19,623.89 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 Lead compounds.
View Recommended HEPA Filters →Chemical Breakdown
Top 5 Pollutants by Weight
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