New Delhi becomes world's most polluted city after Diwali firecracker ban violations

New Delhi has been declared the world's most polluted city as air quality worsened to hazardous levels following Diwali celebrations. Many people ignored a firecracker ban, contributing to the pollution spike. The air quality index reached 348, according to IQ Air. This situation has been exacerbated by seasonal waste burning in northern India, which typically occurs as winter begins. Local officials have struggled to enforce the firecracker ban, despite it being in place for several years. Some groups argue that the ban disrupts Diwali celebrations, while the government maintains it is necessary for public health.