With a continuously expanding economy and fast evolving science and technologies, Shenzhen is upgrading its industries to promote an environment-friendly lifestyle and low-carbon growth. The quality, optimally structural and low-energy consuming development mode has become the city's new normal.
About half of Shenzhen's total area is within a nature protection zone for suburban parks. Forests cover 41.2% of the city's total land. The average annual concentration of PM2.5 in the city is 28 micrograms per cubic meter, making Shenzhen one of the 10 cities in the country with the best air quality. Water treatment projects on 45 sections of 36 rivers in the city had been completed by the end of 2017. The city is expected to reduce energy consumption and water consumption per unit of GDP by 4.2% and 10.3% respectively. Shenzhen also boasts a number of beautiful parks, such as Shenzhen Talent Park, Xiangmi Park and the coastal leisure belt of the Shenzhen Bay. Shenzhen has won domestic and international awards and recognitions, including Nations in Bloom, UNEP's Global 500 Laureate Roll of Honor, National Hygienic City, National Model City for Environmental Protection, Model City for Protection of the Ozone Layer, National Greenery Model City, National Brilliant Tourism City and National Civilized City.
A total of 88 illegal buildings within the city's major drinking water sources were demolished and 73,000 substandard enterprises were regulated. To further strengthen air quality, the city has relocated and closed 63 enterprises that discharge volatile organic compounds. Shenzhen has more than 20,000 new energy vehicles and has its public bus fleet all powered by electricity. It has also eliminated 24,000 vehicles that fail to meet exhaust standards and 54,000 old cars. The city has completed the projects on flue gas treatment of three garbage disposal incinerators and the renovation of 114 waste transfer stations. To fight water pollution, Shenzhen has fully implemented the river-chief rule and accelerated 486 water quality control projects. In 2017, the city added 2,009 kilometers of sewage pipes, eliminated 2,780 sewage outlets, and completed rainwater and sewage diversion projects in 1,412 housing estates. Water supply networks have been upgraded in 108 communities and 152 new housing estates were accessible to quality drinking water. With the completion of the second phase of the Shajing sewage treatment plant and Songgang water purification plant, Shenzhen has accomplished the national and provincial tasks of water pollution control. In a bid to turn the city into a world-famous flower city, Shenzhen rolled out a three-year plan in 2017. A total of 59 parks were built and renovated, and 200 flower-dotted blocks and gardens were built on the streets. The city has also completed the landscape projects on the city's major boulevards. Yantian District became a national demonstration area of ecological civilization construction.