By Xishu Zhang, Mar 2022
This is a D3 data viz project of Beijing's PM2.5 AQI and PM10 AQI using possible sky colors as a color scheme. Credits to calendar heatmap and legend generation functions from https://observablehq.com/@d3/color-legend and https://observablehq.com/@d3/calendar-view.
Github Page for the project: https://xishuz.github.io/Beijing-Air-Quality-Visualization/