Explanation:

• The Supreme Court ban on the use of antimony, lithium, mercury, arsenic and lead in the manufacture of firecrackers to prevent air pollution has turned the focus on what chemicals are used to produce spectacular visual effects and noise.
• Supreme Court Bench of Justices Madan B. Lokur and Deepak Gupta had on July 31, in an order, directed that no firecrackers manufactured by the respondents shall contain the chemicals in any form, whatsoever. The court entrusted the Petroleum and Explosive Safety Organisation (PESO) with the responsibility of ensuring compliance particularly in Sivakasi. Over 90% of cracker production is done in Sivakasi.