| 摘 要： |
The SDG Target 11.6 was committed to reduce the adverse per capita environmental impact of cities , one of its indicators 11.6.2 mainly focusing on air quality and used to measure the health impacts of fine particulate pollution on urban populations. However, given that this indicator was designed for the assessment and monitoring at national, regional, and global levels, and few studies to quantitively evaluate it at the city-level currently, whether it can be directly applied to the city-level and fully reflects the intensity of the exposure risk of fine particulate pollution is still unknown. In light of this problem, taking Beijing as an example, we use methods such as population-weighted PM2.5 concentrations, trend analysis, and geographic spatial distribution measurement to analyze the PM2.5 exposure risk in Beijing from the perspective of multiscale spatiotemporal characteristics of PM2.5 concentrations and exposure risk intensity, finally realized a localized assessment framework towards SDG 11.6.2 to quantitatively evaluate the progress of Beijing. The results not only clarified the sustainable development status of air quality in Beijing but also provided experience and demonstration for the similar city-level monitoring and assessment towards SDG 11.6.2 in the future. |
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