Grap-3 restrictions lifted after Delhi air quality improved.

Delhi, which is known for its annual air pollution outbreaks, has seen a positive change record on 28 December. The Graded Response Action Plan (GRAP- 3) restrictions were lifted following a sharp rise in the Air Quality Index (AQI). Delhi inhabitants are experiencing a positive change due to this decision, which is seen as uplifting and empowering.

WHY WERE GRAP-3 RESTRICTIONS IMPOSED?

The imposition of restrictions under GRAP-3 was triggered by the AQI in Delhi exceeding the “severe” threshold in November. At this stage, construction and demolition activities were prohibited, brick kilns and stone crushers were stopped, while diesel generator use was limited. What happened in 1921? Their goal was "to reduce further depletion of atmospheric quality, particularly during the peak" period of pollution.

IMPROVEMENT IN AIR QUALITY

The AQI of Delhi has undergone a significant shift in the past week, moving from ‘severe' to – ‘very poor’. There are multiple explanations for this alteration:

1. Weather Change: The dispersal of pollutants was aided by the convergence of favorable weather patterns and higher wind speeds.

2. Controlled Emissions: The strict enforcement of GRAP-3 regulations, which included prohibitions on construction and industrial activities, was a crucial factor.

3. Public Awareness and Participation: Campaigns were successful in encouraging citizens to reduce pollution by carpooling, using public transportation, and avoiding firecrackers.

A steady decline in air particulate matter (PM2.5 and PM10) was caused by these factors.

REVOCATION OF GRAP – 3 MEASURES

In response to the improved AQI, the Commission for Air Quality Management (CAQM) announced the removal of GRAP-3 restrictions. This choice was taken following an in-depth analysis of the pollution levels and weather forecasts to ensure that the relaxation would not result in a recurrence of pollution.

Construction Work: The construction of real estate projects and infrastructure developments can proceed without any hindrances.
Industrial Operations: Factories and Manufacturing units that were previously inaccessible can now resume their operations, leading to an increase in local productivity.
Ease For Residents: Daily living becomes more convenient for residents as they can rely on diesel generators once again to provide transportation and electricity services.

CHALLENGE AHEAD

The air quality in Delhi is now classified as "very poor," indicating that caution should be exercised. Experts caution that the reprieve could be temporary because:

1. Seasonal Change: As winter becomes more severe, the risk of temperature inversion increases and could lead to pollutants being trapped closer to the ground.

2. Subtle Burning: The frequency of stubble burning has decreased, but the likelihood of a reappearance could increase pollution levels. However,

3. Vehicular and Industrial Emission: The upsurge in emissions could be reversed by restarting halted activities, which would reduce recent gains.

CONCLUSION

Despite its pollution, Delhi's air quality has improved and GRAP-3 restrictions have been lifted, providing hope for a cleaner city. But that's just one part of a long road to cleaner air. The government and citizens must work together to ensure that Delhi's skies remain clear and breathable, not just for short periods.

With inputs from agencies
Image Source: Multiple agencies

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