With the development of cities, urban rail transit has entered into a stage of rapid construction and development, but the environmental pollution caused by rail transit construction cannot be ignored. To evaluate the environmental pollution of urban rail transit construction, an evaluation system for the environmental pollution induced by urban rail transit construction was established by using the literature survey method and the entropy weight method. The evaluation index system involved three first-level indicators of the physical environment, natural environment and social environment, and 11 second-level indicators. The impact of XA-XDM project construction on urban environmental pollution in Wuhan, China was evaluated by using the evaluation system. Results show that the evaluation score of XA-XDM project is 76.5, which means that the XA-XDM project construction has a strong impact on environmental pollution. It should be paid to the prevention, control and monitoring of various pollution indicators, reducing environmental pollution, and realizing green construction.

In recent years, the issue of environmental pollution caused by the manufacturing industry has been widely criticized. To explore the relationship between capital enrichment and environmental pollution, the mediating effect model was constructed by using the panel data of 28 sub-sectors of China’s manufacturing industry from 2011 to 2017. Results show that the phenomenon of capital enrichment is mainly concentrated in industries with high-profit margins, intensive technology, national policy support, and resource or national monopolistic positions. Both capital enrichment and innovation capability have a promotion effect on inhibiting environmental pollution, but with the decline of innovation capability, the effect of capital enrichment on pollution weakens. Innovation capability plays a mediating role, which leads to the mechanism of capital enrichment ? innovation capability ? environmental pollution. The impact of capital enrichment on environmental pollution under different levels of innovation capability is heterogeneous, and the effect is stronger in high-tech industries.

The rapid development of the tourism industry, range expansion, and intensity growth of human tourism activity have all caused intensifying ecological environmental problems while bringing considerable economic benefits. The ecological environment is currently faced with huge pressures due to the unreasonable tourism resource development, annual decrease in bearing capacity of the tourism environment, and excessive tourism consumption. To coordinate the relationship between tourism economic growth and ecological environment, this work carried out a case study based on Shandong Province, China. First, four aspects of environmental pollution caused by tourism were analyzed. Second, the tourism economy-ecological environmental coordination degree model and index system were established and then the coordination degree in Shandong Province from 2002 to 2019 was estimated. Results show that the tourism industry causes the following typical pollutions: water, soil, air, and noise. The coupling coordination degree (D) between the tourism economy and ecological environment in Shandong Province increased from 0.100 in 2002 to 0.995 in 2019, indicating the transition from serious imbalance to a high-quality coordination state. It is suggested to further promote tourism economy-ecological environment coordinated development by innovating the tourism-economy coupling development mode, creating the entire tourism industrial chain, increasing efforts in tourism reform, and exploring and implementing ecological compensation policies. Research conclusions have important significances to further study and explore the development status between the tourism industry and ecological environment and realize the coordinated development between the tourism industry and regional economy.