Hu Bingxin of china environmental science Research Institute and others evaluated the measures of banning and restricting fireworks in 28 cities in Beijing, Tianjin and Hebei and its surrounding areas, and found that compared with the same period in 20 17, the value of PM2.5 in several cities decreased significantly on New Year's Eve in 20 18, and "the measures of banning and restricting fireworks played an obvious role in peak clipping".
The policy of banning and restricting release has achieved remarkable results because it has responded to the general concern of the people about eliminating the "pain of breathing". The steady promotion of the policy of banning and restricting release in various places is a successful practice of proceeding from reality and adjusting measures to local conditions, and gradually handling the relationship between breaking stereotypes and respecting folk traditional customs. It is a change of customs under the background of using common sense and laws and regulations to unite the prohibition of * * * *.
Extended data;
According to the structure and composition, discharge trajectory and discharge effect, fireworks and firecrackers products are divided into the following nine categories.
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(2) Flower spraying: products that mainly spray flame, spark and sound (ringing beads) in the vertical direction during discharge.
(3) Rotating category: products whose main body rotates but does not lift off when discharging.
(4) Lift-off category: products whose main body is oriented or rotated to lift off when discharged.
(5) Bead spitting: A product that regularly emits colored beads, colorful flowers, sounds and other effects from the same cylinder during discharge.
(6) Toys: low-altitude products with various forms and relatively small range of activities, which produce sparks, smoke, explosions and other effects when discharged, including toy modeling, linear fragrance, friction and smoke products.
(7) Fireworks: products with various light colors, floral patterns or other effects when projectiles and effect pieces are launched into the sky or water by launchers (single launchers, including special launchers).
(8) Shelf fireworks: products that are hung and set off on shelf devices. When it is set off, flames and sparks are ejected to form subtitles, patterns, waterfalls, people, landscapes and other pictures. Divided into waterfalls, subtitles, patterns and so on.
(9) Combined fireworks: products consisting of two or more fireworks of the same or different types, such as small fireworks, flower spraying and bead spitting.
People's Network-Banning Fireworks and Firecrackers: Cohesing Knowledge with Common Sense and Law.