County · TRI 2024

Miami-Dade County, Florida Pollution

10 top TRI facilities tracked here. PM2.5 annual mean (NAAQS 9 µg/m³ (annual)) held roughly steady year over year (+4%). PM2.5 annual mean (NAAQS 9 µg/m³ (annual)) concentrations have fallen 26% since 2010.

FIPS 12086 · population 2,688,237

PM2.5 ANNUAL MEAN (NAAQS 9 ΜG/M³ (ANNUAL)) · 20102024
Bar chart of annual values from 2010 to 2024, in µg/m³. Most recent year (2024): 7 µg/m³.10 µg/m³'10'13'15'17'19'21'23'247 µg/m³
Anomaly engine

Notable Signals

LONG-ARC REGRESSION · LONG-ARC SHIFT

Total TRI releases

Total TRI releases at Miami-Dade County have risen 53% since 2010 (through 2024).

Top facilities mapped

Where Chemicals Are Released In Miami-Dade County

Each red dot is one of the top TRI facilities. Size reflects 2024 total releases. County boundary outlined in blue.

STYLE10 TRI facilities · Miami-Dade County
Pollutant pathways

Miami-Dade County Pollutant Multi-Year Trends

CRITERIA AIRSINCE 2010

PM2.5 annual mean (NAAQS 9 µg/m³ (annual))Health riskFine inhalable particles 2.5 micrometers or smaller. They travel deep into the lungs and into the bloodstream — linked to asthma, heart disease, stroke, and premature death.

7.49 µg/m³ · +4% YoY · -26% since 2010

PM2.5 annual mean (NAAQS 9 µg/m³ (annual)) concentrations have fallen 26% since 2010.

CRITERIA AIRSINCE 2010

PM2.5 24-hour 98th percentile (NAAQS 35 µg/m³ (24-hour))Health riskFine inhalable particles 2.5 micrometers or smaller. They travel deep into the lungs and into the bloodstream — linked to asthma, heart disease, stroke, and premature death.

17.43 µg/m³ · +10% YoY · -23% since 2010

PM2.5 24-hour 98th percentile (NAAQS 35 µg/m³ (24-hour)) concentrations have fallen 23% since 2010.

CRITERIA AIRSINCE 2010

Ozone 8-hour 4th-highest daily max (NAAQS 0.070 ppm (8-hour))Health riskGround-level ozone (smog) forms when vehicle and industrial emissions react in sunlight. Inflames the airways, triggers asthma attacks, and worsens heart and lung disease.

0.060 ppm · -7% YoY · -17% since 2010

Ozone 8-hour 4th-highest daily max (NAAQS 0.070 ppm (8-hour)) concentrations have fallen 17% since 2010.

CRITERIA AIRSINCE 2010

NO₂ annual mean (NAAQS 53 ppb (annual))Health riskA tailpipe and combustion gas. Concentrates near busy roads and industrial sites; raises risk of airway inflammation, asthma, and lower respiratory infections in children.

10.1 ppb · -1% YoY · -9% since 2010

NO₂ annual mean (NAAQS 53 ppb (annual)) concentrations are roughly unchanged from 2010.

HAZARDOUS AIR2020 VINTAGE

Lifetime cancer risk all pollutants (100 in a million (EPA elevated threshold))Health riskEPA-modeled added cancer cases per million residents from a lifetime of breathing local air toxics. EPA flags 100-in-a-million as elevated.

25.6 per million · 2020 vintage

Single-vintage exposure modeling — EPA cadence is multi-year, so no trend line yet.

HAZARDOUS AIR2020 VINTAGE

Formaldehyde ambient mean (0.077 µg/m³ (1-in-a-million URE))Health riskAn air toxic emitted by refineries, wood products, and combustion. EPA classifies it as a known human carcinogen — long-term inhalation raises cancer risk.

1.35 µg/m³ · 2020 vintage

Single-vintage exposure modeling — EPA cadence is multi-year, so no trend line yet.

HAZARDOUS AIR2020 VINTAGE

Benzene ambient mean (0.13 µg/m³ (1-in-a-million URE))Health riskAn air toxic from gasoline, refineries, and tobacco smoke. A known human carcinogen — chronic exposure is linked to leukemia and other blood cancers.

0.13 µg/m³ · 2020 vintage

Single-vintage exposure modeling — EPA cadence is multi-year, so no trend line yet.

TRI AIRSINCE 2010

TRI air releases (5.1 fugitive + 5.2 stack)Health riskToxic chemicals reported by industrial facilities as released into the air — fugitive leaks plus smokestack emissions. Higher pounds means more inhaled exposure for nearby residents.

522k lb · +91% YoY · +67% since 2010

TRI air releases (5.1 fugitive + 5.2 stack) concentrations are up 67% since 2010.

TRI WATERSINCE 2010

TRI water releases (5.3)Health riskToxic chemicals reported by industrial facilities as discharged to surface waters (rivers, lakes, the ocean). Affects fishing, recreation, and downstream drinking-water intakes.

0 lb · YoY · since 2010

TRI water releases (5.3) volumes here are too small to anchor a multi-year trend; YoY movement is still shown above.

TRI LANDSINCE 2010

TRI land + off-site releasesHealth riskToxic chemicals released to land on-site or transferred off-site for disposal — landfills, deep-well injection, and similar. Risks groundwater contamination over time.

173k lb · +119% YoY · +23% since 2010

TRI land + off-site releases concentrations are up 23% since 2010.

GHGSINCE 2010

Greenhouse gases (GHGRP large emitters, through 2023)Health riskGreenhouse gases reported by large industrial emitters under EPA's GHGRP, in metric tons of CO₂ equivalent. Drives climate warming and the heat-related health effects that follow.

4.5M metric tons CO₂e · -12% YoY · -22% since 2010

Greenhouse gases (GHGRP large emitters, through 2023) concentrations have fallen 22% since 2010.

Top facilities · 2024

Where The Chemical Releases Are Concentrated

FacilityCityTop chemicalTotal releasesYoY
Titan Pennsuco ComplexTitan America LLCMedleyAmmoniaHealth riskSevere respiratory and eye irritant; high concentrations cause chemical burns to lung tissue. (EPA)289k lb+38371%
Neenah Foundry CONeenah Foundry CoMedleyZinc compoundsHealth riskGenerally low acute toxicity. Chronic high-dose exposure disrupts copper absorption and immune function. (ATSDR)120k lb+931%
Florida Power & Light CO Turkey Point Power PlantNextera Energy INCHomesteadAmmoniaHealth riskSevere respiratory and eye irritant; high concentrations cause chemical burns to lung tissue. (EPA)103k lb+0%
Aar Landing Gear ServicesAar CORPMiamiTetrachloroethyleneHealth riskIARC Group 2A probable carcinogen; central-nervous-system effects; common dry-cleaning solvent. (IARC, EPA)58k lb-26%
Contender Boats INCContender Boats INCHomesteadStyreneHealth riskIARC Group 2A probable carcinogen; central-nervous-system effects from inhalation. (IARC, EPA)56k lb-23%
Invincible Boat COWarbird Marine HoldingsOpa LockaStyreneHealth riskIARC Group 2A probable carcinogen; central-nervous-system effects from inhalation. (IARC, EPA)36k lb-25%
Valmont - Miami GalvanizingValmont Industries INCMiamiZinc compoundsHealth riskGenerally low acute toxicity. Chronic high-dose exposure disrupts copper absorption and immune function. (ATSDR)21k lb+8%
Univar Solutions USA INCUnivar Solutions USA INCMiamiMethanolHealth riskAcutely toxic if ingested or inhaled. Metabolizes to formaldehyde and formic acid, causing blindness and metabolic acidosis. (EPA)9k lb-22%
Miami International Airport Mia Jet-A Fueling FacilityMiamiNaphthaleneHealth riskIARC Group 2B possible carcinogen; causes hemolytic anemia, especially in infants. (IARC)1k lb+1%
Fxi INC. - MiamiFxi INCMiamiToluene diisocyanate (mixed isomers)Health riskSevere respiratory sensitizer; leading cause of occupational asthma; IARC Group 2B. (IARC, OSHA)317 lb-4%
Superfund / NPL sites

Federal Cleanup Sites In Miami-Dade County

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.

Methodology →

SiteCityStatusFederal facilityPrimary contaminant
Airco Plating Co.BrownsvilleNPL FINALNo1,1-DichloroetheneHealth riskVinylidene chloride; IARC Group 3 (inadequate evidence in humans) but liver toxic in animal studies; common TCE/PCE biodegradation product. (IARC, EPA)
Anodyne, Inc.Miami GardensNPL FINALNoNickelHealth riskNickel compounds are IARC Group 1 carcinogens; inhalation exposure raises lung and nasal cancer risk. (IARC)
Continental CleanersMiamiNPL FINALNo1,1-DichloroethaneHealth riskSuspected carcinogen (EPA C/likely); CNS depressant. Common at solvent-contaminated sites as a degradation intermediate. (EPA, ATSDR)
Homestead Air Force BaseHomestead BaseNPL FINALFEDERALArsenicHealth riskIARC Group 1 carcinogen via inhalation and ingestion. EPA MCL 10 µg/L; chronic exposure causes skin, lung, bladder cancer and cardiovascular disease. (IARC, EPA, ATSDR)
Miami Drum ServicesMiamiNPL FINALNo1,1,1-TrichloroethaneHealth riskMethyl chloroform. CNS depressant; ozone-depleting substance phased out under Montreal Protocol. EPA MCL 200 µg/L. (EPA, ATSDR)
Pepper Steel & Alloys, Inc.MedleyNPL FINALNoArsenicHealth riskIARC Group 1 carcinogen via inhalation and ingestion. EPA MCL 10 µg/L; chronic exposure causes skin, lung, bladder cancer and cardiovascular disease. (IARC, EPA, ATSDR)
Anaconda Aluminum Co./Milgo Electronics Corp.GladeviewDELETEDNo1,2-Dichloroethene (Cis And Trans Mixture)
B&B Chemical Co., Inc.HialeahDELETEDNoBenzeneHealth riskIARC Group 1 carcinogen. Long-term inhalation causes leukemia and bone-marrow disorders. (IARC, EPA)
Gold Coast Oil Corp.Coral TerraceDELETEDNo1,1-DichloroethaneHealth riskSuspected carcinogen (EPA C/likely); CNS depressant. Common at solvent-contaminated sites as a degradation intermediate. (EPA, ATSDR)
Munisport LandfillNorth MiamiDELETEDNo4-Methylphenol (P-Cresol)

Showing the top 10 sites by status priority. 4 additional NPL-relevant sites in Miami-Dade County have entity pages — browse them via the host-county or host-city page rollups.

Equity context · ACS 2018-2022 · USEPA-clone EJ disparity

Who Lives In Miami-Dade County

All block groups in Miami-Dade County County, FL: 2,688,237 residents. County disparity score for pm2.5 (fine particulate) sits near the reference (100). Why we surface this →

POPULATION SHARE
15.3%

Low-income

POPULATION SHARE
87.0%

People of color

POPULATION SHARE
5.3%

Under age 5

POPULATION SHARE
16.6%

Over age 64

NATIONAL PERCENTILE · vs all US block groups (population-weighted; ranked against the national EJScreen indicator distribution)

  • PM2.5 (fine particulate)Health riskFine inhalable particles 2.5 micrometers or smaller. They travel deep into the lungs and into the bloodstream — linked to asthma, heart disease, stroke, and premature death.42near the national median
  • OzoneHealth riskGround-level ozone (smog) inflames the airways. Even short exposures trigger asthma attacks and worsen chronic lung and heart disease.45near the national median
  • Nitrogen dioxide (NO₂)Health riskA tailpipe and combustion gas. Concentrates near busy roads and industrial sites; raises risk of airway inflammation, asthma, and lower respiratory infections in children.73above the national median
  • Diesel particulateHealth riskSoot from diesel engines (trucks, trains, ports, construction). EPA classifies it as a likely human carcinogen and a major driver of childhood asthma near freight corridors.83in the highest 20% nationally
  • Toxic releases (RSEI)Health riskEPA's Risk-Screening Environmental Indicators score — weights TRI chemical releases by toxicity, where they go, and how many people are nearby. Higher means greater modeled cancer and chronic-health risk.82in the highest 20% nationally
  • Traffic proximityHealth riskPopulation-weighted distance to high-volume roads. Living close to heavy traffic raises exposure to PM2.5, NO₂, and diesel exhaust — and the cardiovascular and asthma risks that follow.75above the national median
  • Lead-paint risk (pre-1960 housing)Health riskShare of housing built before 1960, when lead-based paint was common. Dust from deteriorating paint is the leading cause of childhood lead poisoning, which permanently impairs cognitive development.58near the national median
  • Superfund site proximityHealth riskPopulation-weighted distance to NPL Superfund sites — the most contaminated waste sites in the country. Nearby groundwater, soil, and air can carry industrial solvents, metals, and other long-lived contaminants.80above the national median
  • RMP-facility proximityHealth riskDistance to facilities holding chemicals at quantities large enough to require an EPA Risk Management Plan (refineries, fertilizer plants, etc.). These pose acute exposure risk during accidental releases.71above the national median
  • Hazardous-waste site proximityHealth riskDistance to RCRA hazardous-waste handlers (treatment, storage, disposal facilities). Indicates potential exposure to industrial chemicals in air, soil, and groundwater.62above the national median
  • Underground storage tanksHealth riskDensity of underground tanks (gasoline, heating oil, industrial fluids). Leaking tanks are a leading source of benzene and other volatile organic compounds in groundwater drinking-water supplies.94in the highest 10% nationally
  • NPDES wastewater proximityHealth riskDistance to permitted industrial wastewater dischargers. Closer proximity raises exposure to pollutants released into surface waters used for fishing, recreation, and downstream drinking-water intakes.25below the national median
  • Drinking-water non-complianceHealth riskEPA score for public water systems with health-based Safe Drinking Water Act violations. Higher means more residents on systems that recently exceeded safe limits for contaminants like lead, arsenic, or nitrate.97in the highest 5% nationally
EJ disparity scores · population-weighted across county block groups (100 = national reference; higher = greater disparate burden)
IndicatorDisparity scoreReading
PM2.5 (fine particulate)100near the reference
Ozone1well below the reference
Nitrogen dioxide (NO₂)158well above the reference burden
Diesel particulate177well above the reference burden
Toxic releases (RSEI)152well above the reference burden
Traffic proximity157well above the reference burden
Lead-paint risk (pre-1960 housing)89below the reference
Superfund site proximity140moderately above the reference
RMP-facility proximity129moderately above the reference
Hazardous-waste site proximity123moderately above the reference
Underground storage tanks162well above the reference burden
NPDES wastewater proximity13well below the reference
Drinking-water non-compliance218severely above the reference burden

Source: Census ACS 2018-2022 (5-year) + USEPA-clone EJ blockgroup stats (raw indicators + EJ disparity mirror).

Health context

Co-Located Health Indicators

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 →

Adult asthma (current)

BRFSS 2023
8.5%
-10% vs Florida mean-14% vs US mean

CDC PLACES · 2025 release · BRFSS 2022-2023

COPD prevalence

BRFSS 2023
5.3%
-20% vs Florida mean-15% vs US mean

CDC PLACES · 2025 release · BRFSS 2022-2023

Coronary heart disease

BRFSS 2023
6.8%
+1% vs Florida mean+7% vs US mean

CDC PLACES · 2025 release · BRFSS 2022-2023

Diabetes (diagnosed)

BRFSS 2023
15.4%
+20% vs Florida mean+27% vs US mean

CDC PLACES · 2025 release · BRFSS 2022-2023

Frequent mental distress

BRFSS 2023
14.4%
-12% vs Florida mean-9% vs US mean

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 Florida 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.

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.