Awaaz Foundation flags Mumbai`s late-night firecracker violations as chemical tests detect undeclared substances, including barium and aluminium. While several accidental fires linked to firecrackers were reported across Mumbai on Sunday night Awaaz Foundation conducted its annual monitoring of noise levels and air quality across the cityThe foundation recorded the highest concentration of firecracker activity on Lakshmi Pujan day Sunday between 8 pm and 1115 pm Its members monitored areas including Carter Road.