Delhi's Air Chokes: 'Poor' AQI Returns Just Before Diwali, Raising Health Alarms

Delhi finds itself once again grappling with deteriorating air quality, as the Air Quality Index (AQI) plunged into the 'poor' category this Friday. Registering a concerning 218, this marks the first time since June 11 that the capital's air has reached such unhealthy levels, casting a pall over the festive preparations for Diwali, which is just days away on November 12.

The sudden downturn in air quality is attributed to a combination of factors.

Foremost among these is the escalating stubble burning incidents in neighboring states like Punjab and Haryana, a perennial problem that sends plumes of smoke drifting into the National Capital Region. Compounding this challenge are the meteorological conditions: calm winds and a low ventilation index, which effectively trap pollutants closer to the ground, preventing their dispersion.

Local emissions from vehicles, industries, and construction activities further contribute to the toxic mix.

While this year's pre-Diwali AQI of 218 is concerning, it provides a stark reminder of previous years. Last year, on the eve of Diwali (October 23, 2022), the AQI was significantly worse, registering 'very poor' at 312.

In 2021, the situation was even more dire, with the air quality plummeting to 'severe' with an AQI of 462. Experts warn that the current 'poor' reading could be a precursor to a more severe pollution spell, especially with the anticipated increase in fireworks during the festival.

The impact of 'poor' air quality is not to be underestimated.

At this level, most people are likely to experience breathing discomfort if exposed for prolonged periods. For vulnerable groups, including children, the elderly, and those with pre-existing respiratory or cardiovascular conditions, the health risks are considerably higher. Authorities are already on high alert, with Stage I of the Graded Response Action Plan (GRAP) currently in force across Delhi-NCR.

Should the AQI cross the 300-mark, Stage II of GRAP, which entails stricter measures, will be triggered.

Environmental agencies and government bodies continue to monitor the situation closely, urging citizens to take necessary precautions. As the festival of lights approaches, the focus remains on ensuring that the celebrations do not come at the cost of public health and further exacerbate the already fragile air quality of the capital.

The battle against air pollution in Delhi is a continuous one, demanding concerted efforts from all stakeholders to secure cleaner, healthier air for its residents.