Labels on most firecrackers sold during Diwali in Mumbai fail to disclose their full list of chemical components, with many toxic ingredients missing, according to a recent study by anti-noise campaign group Awaaz Foundation . The group conducted chemical testing on firecrackers collected from various stalls across the city.

The analysis revealed that a majority of the 25 firecracker samples tested positive for barium, a chemical classified as a toxin. According to the Agency for Toxic Substances and Disease Registry, excessive levels of barium can lead to hypokalemia (decreased blood potassium), which in turn may cause tachycardia, fluctuating blood pressure, muscle weakness, and paralysis.

Other samples contained titanium , which can trigger inflammation; chlorine , known to caus

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