Air quality in Chennai worsened in 2025, with PM2.5 pollution levels increasing across all seasons compared to 2024, according to a new analysis examining pollution patterns in major Indian cities. The study titled ‘Meteorology-Driven Persistence of PM2.5 Pollution in Indian Cities’ analysed daily air quality data from 2024–2025 across six cities — Delhi, Patna, Kolkata, Mumbai, Chennai, and Bengaluru — using Central Pollution Control Board (CPCB) monitoring records. Published – March 16, 2026 05:30 am IST Share this: Click to share on WhatsApp (Opens in new window) WhatsApp Click to share on Facebook (Opens in new window) Facebook Click to share on Threads (Opens in new window) Threads Click to share on X (Opens in new window) X Click to share on Telegram (Opens in new window) Telegram Click to share on LinkedIn (Opens in new window) LinkedIn Click to share on Pinterest (Opens in new window) Pinterest Click to email a link to a friend (Opens in new window) Email More Click to print (Opens in new window) Print Click to share on Reddit (Opens in new window) Reddit Click to share on Tumblr (Opens in new window) Tumblr Click to share on Pocket (Opens in new window) Pocket Click to share on Mastodon (Opens in new window) Mastodon Click to share on Nextdoor (Opens in new window) Nextdoor Click to share on Bluesky (Opens in new window) Bluesky Like this:Like Loading... Post navigation Emergency stockpile oil coming soon to Iran-wracked markets, IEA says Trump says NATO faces ‘very bad’ future if allies don’t help open Hormuz