Live Air Quality Index (AQI) data using pm2.5 measurements available in Chiang Mai and Northern Thailand. Note that EPA recommendations are for 24-hour average exposures.
|Category||AQI value||Actions to Protect your Health|
|Good||0-50||All groups may participate in normal activities|
|Moderate||51-100||Unusually sensitive people may experience health effects and may consider limiting activity|
|Unhealthy for Sensitive Groups||101-150||Children, active individuals, elderly adults and those with heart or lung conditions should limit activity or exertion|
|Unhealthy||151-200||Individuals in sensitive groups should avoid activity or exertion; all others should limit activity or exertion|
|Very Unhealthy||201-300||All individuals should avoid activity or exertion|
|Hazardous||301-500||Health effects are forecast regardless of exertion level; emergency actions are required|
Latest view of Chiang Mai : Daily photos will reappear later in the year.
Upload your photos of air pollution, agricultural burning, trash burning and forest firesView
Find out how this year's smoke season is evolving. The data below show daily 24-hour average Air Quality Index (AQI) derived from PM2.5 measurements in Chiang Mai.
To see a chart of the full smoke season from January 2017, visit this page on a larger screen.
Hover points for daily AQI number.
Stop the Smoke Campaign
You can stop the smoke and save lives by purchasing biochar from local farmers
This timelapse taken over a 10 hour period on March 24th shows how the city is smothered in dangerous particulate pollution from burning. Watch how Doi Suthep mountain slowly appears from behind the thick haze as the day progresses.
Seven-year-old Nong Yen from Mae Rim reminds us of how air pollution affects the health and happiness of our youngest citizens
video: Marisa Marchitelli
Follow documentary film maker Marisa Marchitelli as she explores the multifaceted problem of Northern Thailand's annual burning season.
Join the conversation and connect with the people who are saving lives in the fight against air pollution in Northern ThailandGet Started
Dr. D. Michael Shafer, Director, Warm Heart Foundation
Every year, North Thailand is blanketed by a smothering pall of deadly smoke that kills 3,500 people, hospitalizes another 17,000, and costs Thailand billions of dollars. A significant portion of this smoke comes from burning corn and rice crop residues. If the burning of corn and rice waste alone can be stopped, it will have a major impact on climate change, public health, as well as environmental and poverty reduction efforts.
Eliminating half the smoke from these two sources will remove 34,600 metric tons of the most dangerous fine particulate pollution (PM2.5) from the air. Luckily, there is a known, tested, sustainable solution ready and waiting to eliminate this smoke: the biomass gasifier power plant. read more