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Miami County, Ohio: environmental and disease records

Cancer mortality in Miami County is 148.9 deaths per 100,000 people per year against a U.S. rate of 143.2. The strongest disease signals are Lung & bronchus deaths at 1.3 times the U.S. rate. Federal databases place 376 regulated facilities, sites and hazards inside the county, led by Air permit holder (minor source) (108), Rail grade crossing (60), Gas station (mapped facility) (43). EPA AirToxScreen estimates a lifetime cancer risk from outdoor air toxics of 30 in a million, driven mainly by formaldehyde.

Rates are age-adjusted per 100,000 people. A cancer signal is marked significant when the lower bound of its 95 percent confidence interval is above the U.S. rate. Facility counts use active federal records located inside the county boundary. Approximate county center: 40.031, -84.2328.

How this county ranks in Ohio

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Cancer deaths and new cases versus the United States

Source: NCI and CDC State Cancer Profiles, both sexes, all ages. Sorted by the ratio of the county rate to the U.S. rate.

Cancer rates for Miami County compared with the United States
Cancer	Measure	County rate	U.S. rate	Times U.S.	95% interval	Years
Melanoma of the skin	Deaths	3.1	2	1.55x	1.9 to 4.7	2020-2024
Melanoma of the skin	New cases	35.8	23.8	1.5xSignificant	31.3 to 40.8	2019-2023
Bladder	New cases	27	18.7	1.44xSignificant	23.4 to 31.1	2019-2023
Lung & bronchus	Deaths	39	30.2	1.29xSignificant	34.7 to 43.7	2020-2024
Brain & nervous system	Deaths	5.5	4.4	1.25x	3.8 to 7.8	2020-2024
Esophagus	Deaths	4.5	3.7	1.22x	3.1 to 6.4	2020-2024
Lung & bronchus	New cases	62.6	51.8	1.21xSignificant	57.1 to 68.5	2019-2023
Kidney & renal pelvis	New cases	20.9	17.9	1.17x	17.6 to 24.7	2019-2023
Brain & nervous system	New cases	7.1	6.2	1.15x	5.1 to 9.7	2019-2023
Esophagus	New cases	5.2	4.6	1.13x	3.7 to 7.2	2019-2023
Childhood cancer (under 15)	New cases	18.5	16.4	1.13x	11.1 to 29	2019-2023
Thyroid	New cases	13.8	13	1.06x	10.8 to 17.2	2019-2023
All cancer	New cases	480.6	453.4	1.06xSignificant	464.4 to 497.4	2019-2023
All cancer	Deaths	148.9	143.2	1.04x	140.2 to 158	2020-2024
Pancreas	New cases	14.3	13.9	1.03x	11.7 to 17.4	2019-2023
Non-Hodgkin lymphoma	New cases	18.9	18.5	1.02x	15.8 to 22.6	2019-2023
Non-Hodgkin lymphoma	Deaths	4.9	4.8	1.02x	3.4 to 6.8	2020-2024
Pancreas	Deaths	10.6	11.3	0.94x	8.4 to 13.3	2020-2024
Leukemia	Deaths	4.8	5.7	0.84x	3.3 to 6.7	2020-2024
Leukemia	New cases	12.1	14.5	0.83x	9.6 to 15.1	2019-2023
Bladder	Deaths	3.3	4.1	0.8x	2.2 to 5	2020-2024
Liver & bile duct	Deaths	4.9	6.6	0.74x	3.5 to 6.8	2020-2024
Stomach	New cases	4.7	6.6	0.71x	3.3 to 6.7	2019-2023
Kidney & renal pelvis	Deaths	2.4	3.4	0.71x	1.5 to 3.9	2020-2024
Liver & bile duct	New cases	5.8	8.7	0.67x	4.2 to 7.7	2019-2023

Mortality measures versus the U.S. county median

Source: County Health Rankings, built from CDC National Vital Statistics System death records. The comparison value is the median of all U.S. counties.

Mortality measures for Miami County
Measure	County	U.S. median	Difference	Unit
Premature death	8,584.2	9,842.6	-13%	years of life lost before age 75 per 100,000
Life expectancy	76	75.3	+1%	years
Child mortality	48	59.8	-20%	deaths under age 18 per 100,000
Infant mortality	6.4	6.2	+4%	deaths under age 1 per 1,000 live births
Injury deaths	75.5	96.9	-22%	deaths per 100,000
Drug overdose deaths	26	28.6	-9%	deaths per 100,000

Air toxics and air quality

EPA AirToxScreen 2020

Lifetime cancer risk from outdoor air toxics: 30 in a million. EPA treats 100 in a million as the upper end of acceptable risk and 1 in a million as the goal.

Formaldehyde17.07 per million
Carbon Tetrachloride2.93 per million
Acetaldehyde1.76 per million
Benzene1.22 per million

EPA Air Quality Index 2025

Monitored on 240 days: 202 good, 1 unhealthy for sensitive groups or worse. Median AQI 40, peak 101.

Regulated facilities, sites and hazards by type

376 active records inside the county from EPA ECHO, TRI, Superfund, Brownfields, NPDES, EIA, FAA, FRA and corrections data.

Air permit holder (minor source)108
Rail grade crossing60
Gas station (mapped facility)43
NPDES wastewater discharge permit27
Toxic chemical release facility (TRI)25
TRI reporting facility19
Small hazardous waste generator17
Brownfield property16
Large hazardous waste generator13
Public airport11
Auto repair or body shop (mapped facility)11
Wastewater plant (mapped facility)5
Major air pollution source4
Heliport4
Superfund (NPL) site3
Hazardous waste transporter2
Solar power plant2
Scrapyard (mapped facility)2
EPA air quality monitor1
Dry cleaner (mapped facility)1
Landfill (mapped facility)1
Oil-fired power plant1

Highest-severity records

The 25 records with the highest Envyrofax severity in the county, with the agency identifier to cite in a records request.

Miami County Incinerator, Troy
Superfund (NPL) site. Hazard Ranking System score 57.8. NPL Site.
EPA site ID OHD980611800 (U.S. EPA Superfund (SEMS/NPL)) Agency record
Severity 10
West Troy Contaminated Aquifer, Troy
Superfund (NPL) site. Hazard Ranking System score 50. NPL Site.
EPA site ID OHN000508132 (U.S. EPA Superfund (SEMS/NPL)) Agency record
Severity 10
East Troy Contaminated Aquifer, Troy
Superfund (NPL) site. Hazard Ranking System score 50. NPL Site.
EPA site ID OHSFN0507962 (U.S. EPA Superfund (SEMS/NPL)) Agency record
Severity 10
Hartzell Fan Inc, Piqua
Toxic chemical release facility (TRI). Chemicals: Styrene. Reports carcinogens. 37,870 lbs released over 5 years.
TRI facility ID 45356HRTZL11SMA (U.S. EPA Toxics Release Inventory)
Severity 8
Deltech Polymers Corp, Troy
Toxic chemical release facility (TRI). Chemicals: Styrene, Ethylbenzene. Reports carcinogens. 35,464 lbs released over 5 years.
TRI facility ID 45373GDSNP1250S (U.S. EPA Toxics Release Inventory)
Severity 8
Dap Global Inc, Tipp City
Toxic chemical release facility (TRI). Chemicals: n-Hexane, Toluene, Cyclohexane, Xylene (mixed isomers) and 4 more. Reports carcinogens. 24,215 lbs released over 5 years.
TRI facility ID 45371DPNCX875NO (U.S. EPA Toxics Release Inventory)
Severity 7.9
Goodrich Aircraft Wheels & Brakes, Troy
Toxic chemical release facility (TRI). Chemicals: Toluene, Nickel, Cobalt, Lead and 4 more. Reports carcinogens. 6,620 lbs released over 5 years.
TRI facility ID 45373BFGDRWACOS (U.S. EPA Toxics Release Inventory)
Severity 7.4
Clopay Coporation - Troy, Troy
Toxic chemical release facility (TRI). Chemicals: Methyl methacrylate, Diisocyanates, Nickel, Chromium and 1 more. Reports carcinogens. 4,479 lbs released over 5 years.
TRI facility ID 4537WCLPYB14WST (U.S. EPA Toxics Release Inventory)
Severity 7.3
Novacel (Troy Laminating & Coating,Inc), Troy
Toxic chemical release facility (TRI). Chemicals: Toluene, Methanol. 143,307 lbs released over 5 years.
TRI facility ID 45373LCPCR421SO (U.S. EPA Toxics Release Inventory)
Severity 7
Hobart Brothers Co Filler Metals Operations Troy, Troy
Toxic chemical release facility (TRI). Chemicals: Manganese And Manganese Compounds, Chromium, Manganese, Nickel and 4 more. Reports carcinogens. 583 lbs released over 5 years.
TRI facility ID 45373HBRTB101TR (U.S. EPA Toxics Release Inventory)
Severity 6.6
3 Sigma Llc, Troy
Toxic chemical release facility (TRI). Chemicals: Toluene. 29,892 lbs released over 5 years.
TRI facility ID 4537WSGMCR1985W (U.S. EPA Toxics Release Inventory)
Severity 6.4
Hobart Plant 27, Troy
Toxic chemical release facility (TRI). Chemicals: Chromium, Nickel, Manganese, Cobalt and 1 more. Reports carcinogens. 245 lbs released over 5 years.
TRI facility ID 45374HBRTCWORLD (U.S. EPA Toxics Release Inventory)
Severity 6.3
Deltech Polymers Corp, Troy
TRI reporting facility.
EPA FRS registry ID 110000394387 (U.S. EPA ECHO) Agency record
Severity 6.3
Troy Laminating And Coating Inc *, Troy
TRI reporting facility.
EPA FRS registry ID 110000394412 (U.S. EPA ECHO) Agency record
Severity 6.2
Hobart Brothers Filler Metals Operation - Piqua, Piqua
Toxic chemical release facility (TRI). Chemicals: Manganese, Nickel. Reports carcinogens. 117 lbs released over 5 years.
TRI facility ID 45356TRMRK8585I (U.S. EPA Toxics Release Inventory)
Severity 6.1
Concrete Sealants, Inc, Tipp City
TRI reporting facility. Penalties $4,400.
EPA FRS registry ID 110067073641 (U.S. EPA ECHO) Agency record
Severity 6
Dap Inc., Tipp City
TRI reporting facility.
EPA FRS registry ID 110013794545 (U.S. EPA ECHO) Agency record
Severity 5.9
Hartzell Fan Inc - S. Main Piqua, Piqua
TRI reporting facility.
EPA FRS registry ID 110024942525 (U.S. EPA ECHO) Agency record
Severity 5.8
Goodrich Corporation, Troy
TRI reporting facility.
EPA FRS registry ID 110000394378 (U.S. EPA ECHO) Agency record
Severity 5.6
Hobart Brothers Company - Trade Square (0855140007), Troy
TRI reporting facility.
EPA FRS registry ID 110007157664 (U.S. EPA ECHO) Agency record
Severity 5.5
West Milton Wwtp, West Milton
NPDES wastewater discharge permit.
EPA FRS registry ID 110011017540 (U.S. EPA ECHO) Agency record
Severity 5.5
Hartzell Propeller, Piqua
Toxic chemical release facility (TRI). Chemicals: Copper, Lead. Reports carcinogens. 13 lbs released over 5 years.
TRI facility ID 45356HRTZLONEPR (U.S. EPA Toxics Release Inventory)
Severity 5.4
Clopay Building Products Company, Inc. - Troy, Troy
TRI reporting facility.
EPA FRS registry ID 110042149083 (U.S. EPA ECHO) Agency record
Severity 5.3
Crane Pumps & Systems Inc., Piqua
TRI reporting facility.
EPA FRS registry ID 110000394225 (U.S. EPA ECHO) Agency record
Severity 5.1
Crane Pumps & Systems Inc, Piqua
Toxic chemical release facility (TRI). Chemicals: Copper And Copper Compounds, Copper. 500 lbs released over 5 years.
TRI facility ID 45356PRSSR420ET (U.S. EPA Toxics Release Inventory)
Severity 5.1

Correctional facilities

Prisons, jails and corrections operations with an EPA facility record, and the drinking water and wastewater compliance attached to them.

No correctional facility with an EPA record is located in this county.

Discovery / public records

Records to request for Miami County

Ohio state cancer registry
Cancer incidence counts by census tract or ZIP code, by cancer type and year (de-identified). Any cancer cluster inquiries or investigations in Miami County, and their findings.
Ohio vital statistics office
Death certificate counts by cause of death and residence tract or ZIP code, and the years behind the mortality measures above.
Ohio health department, environmental epidemiology
Health consultations or assessments by ATSDR or the state health department covering the county, and any exposure investigations.
Ohio environmental agency and the U.S. EPA regional office
Compliance history, inspection reports, notices of violation, penalties and enforcement actions for each facility above, cited by EPA FRS registry ID.
Ohio drinking water program
Violation notices, sampling results and sanitary surveys for the public water systems serving the county, including any system serving a correctional facility.
Department of corrections or county sheriff
Water testing, grievances and environmental health inspections for the correctional facilities listed above.

Each Envyrofax address report includes a printable records request worksheet with the custodian and the exact request wording per finding.

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