{"version":"1.0","type":"rich","title":"PM2.5 Around the World","description":"This choropleth map visualizes global PM2.5 air pollution concentrations for the year 2011, using a grayscale color scale to represent exposure levels across countries. Missing data is marked with a diagonal hash pattern. The visualization uses d3.geoPath with a natural Earth projection, d3.scaleQuantize for color mapping, and d3.zoom for interactive panning. Data comes from a Kaggle dataset processed via TopoJSON and CSV files, with a custom colorLegend component displaying the value ranges for each shade.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/8b93000aebda4b828985a428d19edade?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}