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Delhi AQI Today: Air quality plunges to 'severe' category, pollution level crosses 400 in several areas

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  Published in Business and Finance on Thursday, October 30th 2025 at 4:03 GMT by Zee Business

Delhi’s Air Quality Plunges to Severe Levels: AQI Surpasses 400 in Multiple Areas

On Thursday, the National Capital Region recorded an alarming spike in air pollution, with the Air Quality Index (AQI) soaring above 400 in several districts. According to a report from Zee Business, the Delhi‑NCR environment department’s latest data shows the city’s average AQI at a staggering 403, placing it firmly in the “severe” category of air quality. The crisis, which has reached a new high for the month, has prompted emergency advisories for residents and calls for stricter enforcement of pollution‑control measures.

Record‑Breaking Readings Across the Capital

The official readings released by the Central Pollution Control Board (CPCB) indicated that a total of nine monitoring stations across Delhi and the surrounding districts reported AQI values above 400. Notable hotspots included:

These figures place Delhi’s pollution levels at the highest end of the spectrum, with a PM₂.₅ concentration—fine particulate matter harmful to human health—exceeding 200 µg/m³ in several locations. The severe category, defined by the CPCB as AQI values over 300, means that even brief exposure can cause respiratory distress, aggravate cardiovascular conditions, and trigger acute asthma attacks.

Immediate Health Implications

Health experts warn that prolonged exposure to such high levels of particulate matter can lead to serious complications. The Ministry of Health’s advisory notes that people with chronic diseases—such as asthma, COPD, diabetes, and heart conditions—should limit outdoor activities, especially during peak pollution hours. Children, pregnant women, and the elderly are also advised to wear protective masks and ensure adequate indoor air quality.

The local government has urged citizens to keep windows closed, use air purifiers, and avoid strenuous exercise outside. Several hospitals in Delhi reported an uptick in patients experiencing breathing difficulties and chest pain, correlating with the spike in air pollution.

Government Response and Policy Measures

The Delhi administration has taken a multi‑pronged approach to curb the pollution surge. Key actions include:

1. Vehicle Restrictions: Private two‑wheelers and three‑wheelers with older engine types (up to 2014) were banned from entering the city limits between 9 AM and 8 PM. This measure aims to reduce vehicular emissions that contribute significantly to PM₂.₅ levels.

2. Construction Control: All new construction projects were temporarily halted, and existing works were required to use dust‑suppression equipment. This is to mitigate the fine dust that often plagues Delhi’s streets during construction seasons.

3. Industrial Compliance: Industries in the NCR region received a reminder to comply with the latest emission standards, including the use of scrubbers and filters. The CPCB has increased the frequency of inspections and has warned of potential fines for non‑compliance.

4. Public Transportation Enhancements: Metro services were extended, and additional buses were deployed to encourage the use of public transport. The administration is also exploring the use of electric vehicles in the public transport fleet to cut down on diesel emissions.

The government also announced a temporary curfew for night‑time traffic in key congested corridors to reduce noise and air pollution. In addition, the Delhi Pollution Control Committee has called for a 24‑hour lockdown on the use of high‑polluting machinery and equipment.

Long‑Term Strategy and Future Outlook

Experts point out that the underlying causes of Delhi’s chronic pollution crisis remain rooted in high vehicle density, unchecked industrial emissions, and seasonal agricultural burning in neighboring states. While short‑term measures are necessary to mitigate immediate health risks, a sustainable solution will require comprehensive policy reforms.

The CPCB’s latest guidelines stress the importance of transitioning to cleaner fuels, expanding green cover, and improving waste management. Delhi’s Chief Minister has reiterated the city’s commitment to achieving a “green Delhi” by 2030, emphasizing the need for stricter enforcement of existing regulations and the adoption of innovative technologies such as low‑emission electric vehicles and renewable energy sources.

Meanwhile, the Ministry of Environment, Forest and Climate Change has earmarked funds for large‑scale afforestation and the installation of advanced air‑quality monitoring networks across the NCR region. These measures aim to not only curb pollution but also provide early warning systems for future spikes.

Global Context

The severe air quality in Delhi mirrors a broader trend observed in many megacities worldwide, where industrial activity, vehicular traffic, and climate factors converge to create dangerous pollution levels. International bodies such as the World Health Organization (WHO) note that even at an AQI of 100, the long‑term health impacts can be substantial. Delhi’s current readings, exceeding 400, place it among the world’s most polluted cities—an urgent call to action for both local authorities and the global community.

Summary

Delhi’s AQI, as reported by Zee Business and the CPCB, has crossed the severe threshold, with multiple districts registering values above 400. The spike, attributed to vehicular emissions, construction dust, and regional agricultural burning, has triggered emergency health advisories and prompted the Delhi government to implement vehicle bans, halt construction, and enforce stricter industrial controls. While immediate measures aim to protect public health, the long‑term strategy will hinge on policy reforms, technology adoption, and sustained environmental stewardship. The city’s plight serves as a stark reminder of the pressing need to address air pollution on a global scale.