Ozone 8-hour 4th-highest daily max
Ozone 8-hour 4th-highest daily max in Gloucester County reached 0.076 ppm in 2024, 9% above the EPA NAAQS of 0.07 ppm.
10 top TRI facilities tracked here. PM2.5 annual mean (NAAQS 9 µg/m³ (annual)) fell modestly year over year (-12%). PM2.5 annual mean (NAAQS 9 µg/m³ (annual)) concentrations have more than halved since 2010.
FIPS 34015 · population 302,621
Ozone 8-hour 4th-highest daily max in Gloucester County reached 0.076 ppm in 2024, 9% above the EPA NAAQS of 0.07 ppm.
Total TRI releases at Gloucester County have more than halved since 2010 (through 2024).
Each red dot is one of the top TRI facilities. Size reflects 2024 total releases. County boundary outlined in blue.
PM2.5 annual mean (NAAQS 9 µg/m³ (annual)) concentrations have more than halved since 2010.
PM2.5 24-hour 98th percentile (NAAQS 35 µg/m³ (24-hour)) concentrations have more than halved since 2010.
Ozone 8-hour 4th-highest daily max (NAAQS 0.070 ppm (8-hour)) concentrations have fallen 27% since 2010.
Single-vintage exposure modeling — EPA cadence is multi-year, so no trend line yet.
Single-vintage exposure modeling — EPA cadence is multi-year, so no trend line yet.
Single-vintage exposure modeling — EPA cadence is multi-year, so no trend line yet.
TRI air releases (5.1 fugitive + 5.2 stack) concentrations have more than halved since 2010.
TRI water releases (5.3) concentrations have fallen 15% since 2010.
TRI land + off-site releases concentrations have more than halved since 2010.
Greenhouse gases (GHGRP large emitters, through 2023) concentrations are up 12% since 2010.
| Facility | City | Top chemical | Total releases | YoY |
|---|---|---|---|---|
| Paulsboro Refining CO LLCPbf Energy INC | Paulsboro | Nitrate compounds (water dissociable; reportable only when in aqueous solution)Health riskDrinking-water nitrate causes methemoglobinemia ('blue-baby syndrome') in infants; EPA MCL is 10 mg/L as N. (EPA) | 318k lb | -16% |
| Valtris Specialty Chemicals-Delaware River PlantPolymer Additives INC | Bridgeport | PhenolHealth riskCorrosive on contact; absorbed through skin; high exposure damages kidneys, liver, and the central nervous system. (NIOSH) | 44k lb | +36% |
| Coim USA INCCoim USA INC | West Deptford | 1,4-DioxaneHealth riskIARC Group 2B possible carcinogen; persistent in groundwater, resists conventional treatment. EPA HRL 0.35 µg/L (10⁻⁶ cancer risk). (IARC, EPA) | 38k lb | +13980% |
| Johnson MattheyJohnson Matthey Holdings INC | West Deptford | Nitrate compounds (water dissociable; reportable only when in aqueous solution)Health riskDrinking-water nitrate causes methemoglobinemia ('blue-baby syndrome') in infants; EPA MCL is 10 mg/L as N. (EPA) | 20k lb | -19% |
| Solvay Specialty Polymers USA LLCSyensqo Holding INC | Thorofare | Nitrate compounds (water dissociable; reportable only when in aqueous solution)Health riskDrinking-water nitrate causes methemoglobinemia ('blue-baby syndrome') in infants; EPA MCL is 10 mg/L as N. (EPA) | 15k lb | +4% |
| Saint-Gobain Ppl MickletonSaint-Gobain CORP | Mickleton | AmmoniaHealth riskSevere respiratory and eye irritant; high concentrations cause chemical burns to lung tissue. (EPA) | 15k lb | -30% |
| Veranova L.P.Ahp-Veranova LP | Paulsboro | MethanolHealth riskAcutely toxic if ingested or inhaled. Metabolizes to formaldehyde and formic acid, causing blindness and metabolic acidosis. (EPA) | 7k lb | -32% |
| Cpi Operations LLCPbf Energy INC | Paulsboro | n-HexaneHealth riskPeripheral neurotoxin. Chronic exposure causes numbness and paralysis in the extremities. (ATSDR) | 4k lb | +76% |
| Mycone Dental Supply CO INCMycone Dental Supply Co INC | Gibbstown | Methyl methacrylateHealth riskSkin and respiratory sensitizer; can trigger occupational asthma and dermatitis. (OSHA) | 1k lb | +69% |
| Exxonmobil Paulsboro Lube PlantExxon Mobil CORP | Paulsboro | Zinc compoundsHealth riskGenerally low acute toxicity. Chronic high-dose exposure disrupts copper absorption and immune function. (ATSDR) | 1k lb | -18% |
Sites on EPA's Superfund National Priorities List, plus deleted sites whose cleanup objectives EPA has finalized. Federal-facility sites (defense, DOE, etc.) are flagged separately. Each link routes to a per-site page.
| Site | City | Status | Federal facility | Primary contaminant |
|---|---|---|---|---|
| Bridgeport Rental & Oil Services | Bridgeport | NPL FINAL | No | BenzeneHealth riskIARC Group 1 carcinogen. Long-term inhalation causes leukemia and bone-marrow disorders. (IARC, EPA) |
| Chemical Leaman Tank Lines, Inc. | Bridgeport | NPL FINAL | No | 1,2-DichlorobenzeneHealth riskLiver and kidney effects from chronic exposure. EPA MCL 600 µg/L. (EPA, ATSDR) |
| Franklin Burn | Franklin Township | NPL FINAL | No | — |
| Helen Kramer Landfill | Mantua Township | NPL FINAL | No | 1,1,1-TrichloroethaneHealth riskMethyl chloroform. CNS depressant; ozone-depleting substance phased out under Montreal Protocol. EPA MCL 200 µg/L. (EPA, ATSDR) |
| Hercules, Inc. (Gibbstown Plant) | Gibbstown | NPL FINAL | No | BenzeneHealth riskIARC Group 1 carcinogen. Long-term inhalation causes leukemia and bone-marrow disorders. (IARC, EPA) |
| Matlack, Inc. | Woolwich Township | NPL FINAL | No | BenzeneHealth riskIARC Group 1 carcinogen. Long-term inhalation causes leukemia and bone-marrow disorders. (IARC, EPA) |
| Matteo & Sons Inc. | Thorofare | NPL FINAL | No | AntimonyHealth riskInhaled antimony trioxide is an IARC Group 2B possible carcinogen; respiratory and cardiovascular effects from long-term exposure. EPA MCL 6 µg/L. (IARC, EPA) |
| Pioneer Metal Finishing Inc | Franklinville | NPL FINAL | No | — |
| Shieldalloy Corp. | Newfield | NPL FINAL | No | 1,1-DichloroetheneHealth riskVinylidene chloride; IARC Group 3 (inadequate evidence in humans) but liver toxic in animal studies; common TCE/PCE biodegradation product. (IARC, EPA) |
| Lipari Landfill | Richwood | DELETED | No | 1,2-DichloroethaneHealth riskIARC Group 2B possible carcinogen; liver and kidney toxic. EPA MCL 5 µg/L. (IARC, EPA) |
All block groups in Gloucester County County, NJ: 302,621 residents. County disparity score for pm2.5 (fine particulate) sits well below the reference (29). Why we surface this →
Low-income
People of color
Under age 5
Over age 64
| Indicator | Disparity score | Reading |
|---|---|---|
| PM2.5 (fine particulate) | 29 | well below the reference |
| Ozone | 37 | well below the reference |
| Nitrogen dioxide (NO₂) | 28 | well below the reference |
| Diesel particulate | 45 | well below the reference |
| Toxic releases (RSEI) | 50 | well below the reference |
| Traffic proximity | 36 | well below the reference |
| Lead-paint risk (pre-1960 housing) | 38 | well below the reference |
| Superfund site proximity | 69 | below the reference |
| RMP-facility proximity | 32 | well below the reference |
| Hazardous-waste site proximity | 43 | well below the reference |
| Underground storage tanks | 42 | well below the reference |
| NPDES wastewater proximity | 42 | well below the reference |
| Drinking-water non-compliance | 37 | well below the reference |
Source: Census ACS 2018-2022 (5-year) + USEPA-clone EJ blockgroup stats (raw indicators + EJ disparity mirror).
Modeled adult-prevalence estimates published by CDC PLACES, paired with this county's pollution and demographic context. Comparisons are ecological, not causal — pollution and disease prevalence covary at the area level, but the data does not attribute any individual's diagnosis to local exposure. How this section works →
CDC PLACES · 2025 release · BRFSS 2022-2023
CDC PLACES · 2025 release · BRFSS 2022-2023
CDC PLACES · 2025 release · BRFSS 2022-2023
CDC PLACES · 2025 release · BRFSS 2022-2023
CDC PLACES · 2025 release · BRFSS 2022-2023
PLACES uses BRFSS-modeled small-area estimates, not individual records. Crude prevalence shown above is the local rate as published; comparators are age-adjusted vs the New Jersey mean and the US mean — both population-weighted across counties — so geographies with different age structures stay apples-to-apples. Sources: CDC PLACES · 2025 release · BRFSS 2022-2023.
Pollution trends and TRI 2024 pages for every tracked city in this county. Alphabetical.
Sources.
All sources are federal public-domain datasets under 17 USC §105. We aggregate but do not relabel; the underlying observations remain attributable to EPA.