Bengaluru is facing a sharp decline in air quality, raising alarm over its impact on public health, particularly heart-related illnesses. Over the past several days, the city’s Air Quality Index (AQI)
has remained in the poor to unhealthy range, fluctuating between 170 and 200.
A few days ago, the AQI briefly crossed 200, and on Tuesday it stood at around 190. Experts warn that if weather conditions remain unfavourable, pollution levels could worsen further in the coming days.
Health specialists point to a steady rise in particulate matter as the key factor behind the deteriorating air. On Tuesday, PM2.5 levels in Bengaluru reached 112, while PM10 was recorded at 155, both significantly above safe limits.
These fine particles can penetrate deep into the lungs and bloodstream, increasing the risk of respiratory infections, aggravated asthma, and cardiovascular problems, including heart attacks and strokes.
The situation has been aggravated by the cold wave currently sweeping across Karnataka. Lower temperatures and reduced wind movement tend to trap pollutants closer to the ground, leading to prolonged exposure.
Doctors report a noticeable increase in cases of breathing difficulties, persistent coughs and chest discomfort, especially among children, the elderly and people with existing heart or lung conditions. Experts note that this is the first time in the last four years that Bengaluru has witnessed such poor air quality during this period.
Authorities and health experts are urging residents to take precautionary steps. People are advised to limit outdoor activities, especially during early morning and late evening hours when pollution levels are often higher.
Wearing masks while stepping out, keeping windows closed during peak pollution hours and staying hydrated are among the measures recommended to reduce health risks. Regular monitoring of daily AQI updates is also advised.
Doctors warn that prolonged exposure to air with an AQI above 150 can significantly increase the risk of asthma and heart-related diseases. With pollution levels showing frequent fluctuations and no immediate relief in sight, citizens are being encouraged to remain vigilant and prioritise their health.
Understanding AQI levels:
Good: 0-50
Moderate: 50-100
Poor: 100-150
Unhealthy: 150-200
Very Poor: 200-300
Severe: 300-500+
