On August 13, the 21st China Environment Expo was grandly opened in Shanghai New International Expo Center. The exhibition area of this exhibition is 150,000 square meters, bringing together 1851 environmental protection companies from 24 regions and regions around the world, showing the municipality and industry in all aspects. , Frontier development trends and innovative technologies of water, solid waste, air, soil, and noise pollution control technologies in the rural area. The 21st China Environment Expo opened at the Shanghai New International Expo Center. The China World Expo once again demonstrated the vigor and development potential of China's environmental protection industry and market with an unexpectedly large scale and rich cutting-edge green technology.