CRITERIA AIRSINCE 2010
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.
8.07 µg/m³ · -8% YoY · -47% since 2010
PM2.5 annual mean (NAAQS 9 µg/m³ (annual)) concentrations have fallen 47% since 2010.
CRITERIA AIRSINCE 2010
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.
17.10 µg/m³ · -11% YoY · -54% since 2010
PM2.5 24-hour 98th percentile (NAAQS 35 µg/m³ (24-hour)) concentrations have more than halved since 2010.
CRITERIA AIRSINCE 2010
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.
0.059 ppm · -6% YoY · -35% since 2010
Ozone 8-hour 4th-highest daily max (NAAQS 0.070 ppm (8-hour)) concentrations have fallen 35% since 2010.
HAZARDOUS AIR2020 VINTAGE
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.
31.2 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))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.
1.84 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))iHealth riskAn air toxic from gasoline, refineries, and tobacco smoke. A known human carcinogen — chronic exposure is linked to leukemia and other blood cancers.
0.12 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)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.
563k lb · +14% YoY · -29% since 2010
TRI air releases (5.1 fugitive + 5.2 stack) concentrations have fallen 29% since 2010.
TRI WATERSINCE 2010
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.
6k lb · -31% YoY · -66% since 2010
TRI water releases (5.3) concentrations have more than halved since 2010.
TRI LANDSINCE 2010
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.
47k lb · +67% YoY · -98% since 2010
TRI land + off-site releases concentrations have more than halved since 2010.
GHGSINCE 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.
23.9M metric tons CO₂e · -5% YoY · +35% since 2010
Greenhouse gases (GHGRP large emitters, through 2023) concentrations are up 35% since 2010.