India, Dec. 1 -- Despite repeated claims that construction dust is the largest contributor to Mumbai's worsening air quality, little has been done to curb the menace. Fresh concerns have now emerged over Metro Line 4 works along LBS Marg in Mulund, where unchecked debris and dust continue to choke the area.

BJP MLA Mihir Kotecha has alleged that at least 100 spots along the Wadala-Kasarvadavali corridor are actively adding to the suburb's poor Air Quality Index (AQI), owing to unchecked debris, dust and poor housekeeping.

Kotecha, who inspected a 2-km stretch of LBS Road on Saturday along with officials from the Mumbai Metropolitan Region Development Authority (MMRDA) and the BMC's T-ward, said that large heaps of scrap, cement blocks, ...