Environment ❯ Pollution ❯ Air Pollution ❯ Particulate Matter

PM2.5

California PM2.5 Alerts Persist as Riverside and Orange Counties Remain Unhealthy for Sensitive Groups

EPA data show PM2.5 remains elevated in Southern California under no-burn rules.

California Air Quality Alerts Persist as 'Unhealthy' PM2.5 Prompts Stay-Home Guidance

California Air Quality Advisory Persists as PM2.5 Reaches Unhealthy Levels in Select Areas

Delhi Begins 2026 With Very Poor Air as Dense Fog and Cold Wave Set In

CREA Finds Secondary Ammonium Sulfate Drives Up to 42% of India’s PM2.5, One-Third in Delhi

Delhi Air Quality Eases Slightly to 'Very Poor' With Hotspots Still 'Severe'

Delhi AQI Worsens to ‘Severe’ in Pockets as Citywide Average Hits 361

Day After Diwali, Delhi-NCR Air Quality Plunges To 'Very Poor' And 'Severe'

Metals and Sulfates in PM2.5 Linked to Higher Asthma Hospitalizations, U.S. Study Finds

Wildfires Drove 2023’s Sharpest Pollution Surge in U.S. and Canada, AQLI Finds

Meta-Analysis Quantifies Dementia Risk From Air Pollution

India Reverses Universal FGD Mandate for Coal Plants, Exempts 79% of Units

Global Report Reveals Over 80% of Cities Exceed Air Pollution Limits

Global Air Quality Report Highlights Severe Pollution in India and Chad

Air Pollution in EU Linked to Nearly 240,000 Deaths Annually

India's Air Pollution Crisis Threatens Health and Economy

Study Links Air and Noise Pollution to Higher Infertility Risks