Harm of setting off fireworks and firecrackers

The raw material of firecrackers is gunpowder, and the main components are sulfur, carbon powder and nitrate (potassium nitrate or potassium chlorate). According to written records, China has been manufacturing and setting off firecrackers for more than 2,000 years. In addition to "bang, bang", big firecrackers and "scratching" small firecrackers and electro-optical cannons, there are also fireworks and fireworks that will give off colorful sparks in generate after being ignited. Fireworks or fireworks are powders of magnesium, aluminum, antimony and nitrates such as strontium nitrate, barium nitrate and sodium nitrate. When setting off fireworks, different metals or metal ions will produce different colors. After knowing the main components of firecrackers, it is not difficult to understand the ignited products. After the firecrackers were lit, they burned quickly and exploded violently. At the same time, it produces a lot of harmful gases such as CO2, NO2 and CO, and dust of various metal oxides. Among them, NO2 is an extremely irritating and corrosive oxide. The extremely harmful acid rain is mainly formed by the dissolution of such gases in rain clouds. If a large number of firecrackers are set off in windless or low-pressure weather, harmful gases that cannot be dispersed underground will stimulate people's respiratory tract, make people cough and cause bronchitis and other diseases. If firecrackers make a slight mistake in any link of production, transportation and discharge, they will explode, injure people or catch fire like bombs. According to statistics, it is not uncommon for firecrackers to injure people all over China, ranging from skin injury to eye injury, limb injury and even life-threatening. In addition, the annual Spring Festival is bound to be a high incidence of urban and rural fires, and setting off firecrackers and fireworks is one of them. In addition, the violent explosion of firecrackers is also one of the public hazards of urban noise. Igniting firecrackers at will, regardless of the occasion and place, can easily scare children or pedestrians. For people with heart disease, this kind of fright is likely to lead to very serious consequences. In a word, the vicious consequences of setting off firecrackers are manifold. Although many big cities have made regulations prohibiting setting off firecrackers in certain areas, it is up to everyone to consciously abide by them.

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