The change in Ma On Shan is 120.

Ma 'anshan, my hometown, is an industrial and port city with steel as its main business and heavy chemical industry as its starting point.

In Ma 'anshan before, production areas and residential areas were mixed together, and chimneys of all sizes were everywhere pouring smoke into the blue sky, turning the sky gray. As long as the wind blows together, there is dust everywhere. Yushan Lake is not clean either. Factories, hospitals and residential buildings constantly discharge sewage into the clear lake, making the lake black and smelly. There are piles of garbage everywhere around the lake area, and dead fish floating on the lake can be seen everywhere, emitting a thick stench and disgusting.

With the great development of economy, pollutants such as waste gas, waste water and various waste residues have also increased rapidly, which has seriously affected people's lives.

In order to make a big change in the environment of Steel City and make people live better, the people of Steel City, under the leadership of the municipal government, launched the activity of striving for a "national civilized and hygienic city". They began to repair roads, clean up lakes, restore greenery and expand gardens. , and moved Masteel New District, transmission machinery, biochemical pharmaceutical and other factories to the suburbs for unified planning and management. Many residential areas have been rebuilt, such as Maanshan Garden and Jin Rui Community, and many gardens and squares have been rebuilt and expanded, such as Festival Square, Zhu Ran Cultural Park and Municipal Square. Through a series of environmental improvement projects, people get a "clear water and blue sky" natural living environment.

Today, Maanshan has become a veritable "national civilized and hygienic city". Neat factories are scattered, beautiful and novel residential areas are hidden among red flowers and green trees, and green lawns can be seen everywhere. Yushan Lake is beautiful with many birds. Strolling through the rocks, the fresh river wind blows head-on, which makes people relaxed and happy. "Around the lake in September, green snails come out of the river" is today's Maanshan. It can be seen that a steel "gray city" is becoming a "green city" suitable for people to live in.