Influential factors affecting the generation of kitchen solid waste in Shanghai, China

The impact of municipal solid waste sorting policy on air pollution: Evidence from Shanghai, China

Municipal solid waste (MSW) sorting not only reduces the total quantity of domestic waste but also has positive effects on urban air quality. In this study, using a careful identification strategy and air quality data at the monitoring station level in Shanghai, we estimate the causal effect of the MSW sorting policy on urban air quality. The results show that after the MSW sorting policy was implemented, the air quality index (AQI), nitrogen dioxide (NO2) and carbon monoxide (CO) decreased significantly by 2.71%, 2.07% and 3.62%, respectively. We also find a positive spillover effect from the Shanghai MSW sorting policy on the air quality of adjacent cities. The implementation of this policy has triggered changes in residents' behaviors. However, the government needs further efforts to maintain the sustainability of MSW sorting policies.

Supervision behaviours of customs supervisors on solid waste import in Shanghai, People's Republic of China

Waste management is a key challenge the world currently faces. Solid waste imports (SWIs) are counteractive to the construction of ecological civilization. The comprehensive prohibition of "foreign waste" (FW) imports (FWIs) is an iconic measure to promote ecological civilization and ecological environment safety. Strengthening the People's Republic of China (PRC)'s supervision of SWI (SSWIs) is an important means of implementing the comprehensive prohibition of FWIs, while existing research has paid little attention to the behaviour of SSWIs. This paper firstly analyses the influential factors of the behaviour of SSWIs based on the theory of planned behaviour (TPB), and five corresponding research hypotheses are put forward accordingly. Then, it uses 262 micro questionnaires regarding the behaviour of SSWIs in the Port of Waigaoqiao in Shanghai, PRC, and constructs a structural equation model based on the TPB to identify the influential factors and effects of the behaviour of SSWIs. Some interesting findings are observed in this research. Firstly, it indicates that attitude, subjective norms (SNs) and perceived behavioural control (PBC), all indirectly act upon supervision behaviour by influencing supervision intention. Secondly, PBC acts directly on the behaviour of SSWIs, which is consistent with the TPB. Thirdly, the direct effects on supervision intention from strongest to weakest are SNs, attitude, and PBC, respectively. The conclusion provides important policy enlightenment for the supervision optimization of the behaviour of SSWIs. The supervision intention can be motivated from various angles by strengthening the attitude, SNs and PBC of customs supervisors, subsequently strengthening their supervision intention and behaviour.