A fresh oleum gas leak at a chemical unit in Boisar on Monday has once again brought attention to recurring industrial safety incidents in the Tarapur Boisar belt of Palghar district, one of Maharashtra’s largest chemical manufacturing hubs. The leak, reported around 1.45 pm on March 2 at Bhageria Industries Limited in the Boisar industrial zone, triggered a large evacuation operation. Authorities relocated more than 2,000 people, including workers from nearby factories and students from adjoining schools, after toxic fumes spread across parts of the industrial estate.