Air Quality Index

Air Quality Index(AQI) of Continuous Ambient Air Quality Monitoring Stations (CAAQMS) in Tamil Nadu

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ALL Stations AQI

AQI	Remark	Possible Health Impacts
0-50	Good	Minimal impact
51-100	Satisfactory	Minor breathing discomfort to sensitive people
101-200	Moderate	Breathing discomfort to the people with lungs, asthma and heart diseases
201-300	Poor	Breathing discomfort to most people on prolonged exposure
301-400	Very Poor	Respiratory illness on prolonged exposure
401-500	Severe	Affects healthy people and seriously impacts those with existing diseases

AQI data from CAAQMS is sent to CPCB and after data validation, the same is displayed in CPCB website and also sent to TNPCB through API. This data which is obtained from CPCB is displayed here and the AQI data of every CAAQM station is calculated for the preceding 24 hours and the average is displayed.