Why are firecrackers not allowed during the Spring Festival?

The main reason is that the centralized discharge of fireworks and firecrackers has a great impact on urban air quality. With the smog raging in recent years, environmental pollution has become the headline reason for the government to consider banning firecrackers during the Spring Festival.

In order to reduce air pollution, in recent years, fireworks and firecrackers have been banned everywhere during the Spring Festival. Statistics show that fireworks are prohibited in 444 cities and restricted in 764 cities. Specifically, the degree to which fireworks and firecrackers are prohibited varies from place to place.

Related content introduction:

1, one measure is a total ban. This year's Spring Festival is the second year after the newly revised "Regulations on the Safety Management of Fireworks and Firecrackers in Shanghai" was officially implemented. During the Spring Festival, the outer ring road of Shanghai achieved "zero emission" of fireworks and firecrackers, and the emission of non-forbidden areas outside the outer ring road decreased by more than 80% compared with the same period of last year.

2. A similar ban was aborted in Henan because of strong resistance. On the eve of the Spring Festival, the Office of the Leading Group for the Prevention and Control of Environmental Pollution in Henan Province issued what is called the strictest prohibition on alcohol in history, demanding that fireworks and firecrackers be completely banned in the whole province during the Spring Festival.

3. More places take measures to limit emissions. Beijing stipulates that in case of heavy air pollution during the Spring Festival this year, it is forbidden to sell, distribute and set off fireworks and firecrackers throughout the city.

Data released by the Ministry of Environmental Protection:

The Ministry of Environmental Protection issued "Analysis of the Impact of Fireworks and Firecrackers on Urban Air Quality during the Spring Festival of 2065 438+03-2065 438+07". The data shows that the centralized discharge of fireworks and firecrackers has a great impact on urban air quality.

In the experiment, three small firecrackers were set off in a 30-meter test box, and the concentration of PM2.5 was 1 230 g/m. This data was 2.46 times of the over-standard value of 500g/m and 6.4 times of the qualified value of 75 g/m, which also meant that1firecrackers was enough to make/.

Extended data

Introduction of firecrackers:

The origin of firecrackers has a history of 1000 years. When there was no gunpowder and paper, ancient people burned bamboo to make it burst and make a sound, so as to drive away the plague. This is of course a folklore, but it reflects the yearning of ancient China people for Aetna. Firecrackers have different names in different historical periods, from firecrackers, blasting poles, firecrackers, weaving guns to firecrackers.

Since modern times, people in China have set off firecrackers on almost traditional festivals, weddings, celebrations, temple fairs and other occasions, especially during the Spring Festival, the use of firecrackers exceeds half of the annual consumption.

Be harmful (to sb.)

air pollution

When setting off firecrackers, it will release a lot of harmful gases, such as sulfur dioxide (SO2), nitrogen dioxide (NO2), hydrogen sulfide (H2S), carbon monoxide (CO) and so on. After sulfur dioxide enters the atmosphere, it first reacts with water to generate sulfurous acid (H2SO3).

SO2+H2O=H2SO3

Sulfuric acid is oxidized into sulfuric acid in air.

2H2SO3+O2=2H2SO4

noise pollution

Setting off firecrackers will not only cause air pollution, but also cause noise pollution. The noise of setting off firecrackers has a great influence on our physiology and psychology. It will not only damage our hearing, but also our cardiovascular system.

References:

Firecrackers-Baidu Encyclopedia Find the Balance between Folklore and Health-People's Network

Can't we not set off firecrackers during the Spring Festival? -World Wide Web