Muncy, Pennsylvania Pollution

PM2.5 annual mean (NAAQS 9 µg/m³ (annual))iHealth 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.

6.34 µg/m³ · +1% YoY · -5% since 2019

PM2.5 annual mean (NAAQS 9 µg/m³ (annual)) concentrations are roughly unchanged from 2019.

PM2.5 24-hour 98th percentile (NAAQS 35 µg/m³ (24-hour))iHealth 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.

19.90 µg/m³ · +21% YoY · +42% since 2019

PM2.5 24-hour 98th percentile (NAAQS 35 µg/m³ (24-hour)) concentrations are up 42% since 2019.

Ozone 8-hour 4th-highest daily max (NAAQS 0.070 ppm (8-hour))iHealth 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.

0.064 ppm · -7% YoY · -7% since 2010

Ozone 8-hour 4th-highest daily max (NAAQS 0.070 ppm (8-hour)) concentrations are roughly unchanged from 2010.

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

27.6 per million · 2020 vintage

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

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

1.21 µg/m³ · 2020 vintage

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

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

0.35 µg/m³ · 2020 vintage

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

TRI air releases (5.1 fugitive + 5.2 stack)iHealth 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.

670 lb · -35% YoY · — since 2010

TRI air releases (5.1 fugitive + 5.2 stack) volumes here are too small to anchor a multi-year trend; YoY movement is still shown above.

TRI water releases (5.3)iHealth 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 land + off-site releasesiHealth riskToxic chemicals released to land on-site or transferred off-site for disposal — landfills, deep-well injection, and similar. Risks groundwater contamination over time.

228k lb · +199% YoY · +180% since 2010

TRI land + off-site releases concentrations have more than doubled since 2010.

Greenhouse gases (GHGRP large emitters, through 2023)iHealth 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.

1.0M metric tons CO₂e · +111% YoY · +787% since 2010

Greenhouse gases (GHGRP large emitters, through 2023) concentrations have more than doubled since 2010.

Utilities serving

Population served

Health-based · 5yr

Unresolved