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18 January 2026|The Indian Express
3 min read
Environment & EcologyNEWS

Delhi's Air Quality Worsens, GRAP IV Measures Reimplemented

Delhi's air quality deteriorates, prompting the return of GRAP IV restrictions.

Background Context

The issue of air pollution in Delhi is not new, with its roots tracing back to rapid industrialization, urbanization, and agricultural practices in the post-independence era. The problem gained significant attention in the 1990s, leading to the introduction of measures like the phasing out of older vehicles and the promotion of CNG. The Supreme Court's intervention in the early 2000s played a crucial role in pushing for cleaner fuels. However, the problem persisted due to factors like regional stubble burning, construction activities, and vehicular emissions. The Graded Response Action Plan (GRAP) was formulated in 2016 as a structured approach to combat air pollution based on AQI levels, drawing from experiences and studies conducted over the preceding decades.

Delhi's air quality has deteriorated, with the Air Quality Index (AQI) nearing the 'severe' category. As a result, authorities have reimplemented Stage IV of the Graded Response Action Plan (GRAP). The AQI values recorded today are: Anand Vihar (414), RK Puram (393), and Punjabi Bagh (406). GRAP IV includes measures such as a ban on construction and demolition activities, restrictions on vehicular traffic, and closure of schools if the air quality worsens further. The Commission for Air Quality Management (CAQM) will monitor the situation and decide on further actions.

Key Facts

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Delhi AQI nearing 'severe' range

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GRAP IV measures reimplemented

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Anand Vihar AQI: 414

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RK Puram AQI: 393

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Punjabi Bagh AQI: 406

Latest Developments

In recent years, there has been increased focus on addressing the regional nature of air pollution, with greater emphasis on collaboration between Delhi and neighboring states. The Commission for Air Quality Management (CAQM) was established in 2021 to coordinate efforts across the National Capital Region (NCR). Initiatives like the promotion of electric vehicles, stricter enforcement of emission norms, and efforts to reduce stubble burning through alternative technologies have gained momentum. The future outlook involves further strengthening regional cooperation, investing in cleaner technologies, and enhancing public awareness to promote sustainable practices. The effectiveness of GRAP and CAQM will be crucial in achieving long-term improvements in air quality.

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