Regarding the question "What is the worst custom during the Spring Festival?", I think the traditional custom of setting off firecrackers is one of the worst.

Setting off firecrackers during the Spring Festival is one of the traditional ways of celebrating in China. People believe that it can drive away evil spirits and bring good luck and blessings.

However, with the acceleration of urbanization and the enhancement of environmental awareness, setting off firecrackers has become a custom that has caused many problems.

First of all, the noise pollution caused by setting off firecrackers will have a negative impact on people's health.

A large number of explosions can cause damage to the eardrums, especially for young children and the elderly, making hearing damage more likely.

Secondly, the setting off of firecrackers will release a large amount of harmful gases and particulate matter, causing pollution to the environment.

Smoke and dust can degrade air quality, harm people's respiratory systems, and adversely affect local air quality indexes.

In addition, setting off firecrackers poses a fire risk.

Fire accidents caused by firecrackers occur every year, posing a threat to people's lives and property.

Especially in urban centers, dense buildings can easily cause fires and lead to unpredictable catastrophic consequences.

Therefore, we should gradually phase out the custom of setting off firecrackers and turn to more environmentally friendly and healthy celebration methods, such as enjoying cultural performances, reuniting with relatives and friends, and enjoying delicious food.

This will not only protect our health and environment, but also better inherit and develop Chinese traditional culture.