Over 500,000 people were exposed to the toxic gas, and thousands died in the immediate aftermath, with the long-term effects still affecting many.
Though primarily a nuclear disaster, the explosion released large amounts of radioactive material into the environment, causing widespread contamination.
The explosion caused severe environmental contamination, with dioxin affecting thousands of people and animals.
Thousands of people were exposed to toxic levels of lead, which can cause neurological damage, particularly in children.
It also led to environmental contamination and raised concerns over safety practices in the handling of hazardous materials in China.
The explosion killed approximately 600 people and caused extensive damage to the city.
While not a "chemical" spill in the traditional sense, crude oil is a toxic substance that caused widespread environmental harm.