New Delhi: Delhi’s worsening air pollution has raised fresh concerns over the accuracy of publicly displayed Air Quality Index (AQI) readings, even as residents increasingly turn to wearable air purifiers and other personal protection devices to cope with toxic air.
A ground report from the India Meteorological Department (IMD) office at Lodhi Road highlighted two contrasting aspects of the pollution crisis: significant differences in AQI readings across monitoring platforms and the growing popularity of portable air purification devices.
AQI Discrepancies Raise Questions
At the IMD office in Lodhi Road, pollution readings reportedly ranged between 342 and 377, placing air quality in the Very Poor category. However, public display boards managed by the Delhi Pollution Control Committee (DPCC) outside the premises showed considerably lower figures, including an AQI of 143, which falls under the Moderate category.
The difference has raised questions about the consistency and transparency of pollution monitoring in the capital. While dashboards maintained by the Central Pollution Control Board (CPCB) and the Commission for Air Quality Management (CAQM) reflected significantly higher pollution levels, the lower figures displayed publicly could create confusion among residents.
The discrepancy has also raised concerns over which readings people should trust when assessing their exposure to harmful air.
Wearable Air Purifiers Gain Popularity
With pollution levels remaining a major concern, residents are exploring alternatives to conventional face masks and indoor air purifiers. Some people have started using compact wearable air purifiers that can be carried around the neck while commuting or spending time outdoors.
These devices are marketed as ionisers that release negatively charged ions, which are intended to attach to airborne particles and encourage them to cluster and settle.
However, their ability to provide meaningful protection against dangerous fine particulate matter such as PM2.5 remains a subject of scientific scrutiny. Their effectiveness should not be assumed without independent testing.
Personal Protection Cannot Replace Pollution Control
The developments highlight the difficulties faced by Delhi residents as they struggle with deteriorating air quality. While wearable devices reflect growing demand for individual protection, they cannot replace large-scale pollution control measures.
Reliable monitoring, transparent AQI reporting and effective action against pollution sources remain essential to addressing the crisis.
For residents, the challenge is not only breathing cleaner air but also receiving accurate information about the pollution levels surrounding them.
