Delhi smog so bad, Singapore issues ‘stay indoors’ advisory for its nationals

Delhi’s air quality has reached alarming levels, forcing the Singapore High Commission to issue a health advisory for its nationals in the city. With the Air Quality Index (AQI) hitting 437 at 2 pm on Monday, the Singapore Gigh Commission urged its citizens to “pay heed” to local instructions about staying indoors and wearing masks if stepping out.

The advisory, posted on the High Commission’s official X handle, also noted that on December 13, the Central Pollution Control Board (CPCB) triggered Stage 4 of the Graded Response Action Plan (GRAP), the highest alert level. Under this stage, construction and industrial activities are heavily restricted, and schools and offices are encouraged to adopt hybrid work modes.

In light of the Indian Central Pollution Control Board invoking Stage 4 of the Graded Response Action Plan, the Singapore High Commission has issued the following advisory for Singapore nationals in the Delhi NCR. – HC Wong pic.twitter.com/vPIv0LjTnd

— Singapore in India (@SGinIndia) December 15, 2025

“We also note that given the low visibility, flights to and from the Delhi National Capital Region are likely to be affected,” the advisory added, advicing travellers to check with their airlines. The High Commission also provided a contact point for consular assistance.

Feels like a gas chamber

All major monitoring stations across Delhi recorded AQI levels above 400, indicating ‘severe’ pollution. Areas like Anand Vihar and Ashok Vihar registered readings of 486 and 482, respectively, while ITO and DTU recorded 451 and 469.

AQI levels above 400 are deemed hazardous, and extended exposure can be harmful, especially for children, the elderly, and individuals with respiratory, cardiovascular, cerebrovascular, or chronic health conditions. The Delhi Pollution Control Committee (DPCC) has advised these groups to avoid outdoor activities and remain indoors.

The smog has disrupted daily life and air travel. At Indira Gandhi International Airport, over 400 flights were delayed, 61 cancelled, and five diverted. The airport reported improving visibility and said operations were gradually returning to normal, but warned passengers to stay updated with their airlines.

Authorities have urged residents to limit outdoor activities, wear protective masks, and take precautions to minimise exposure.