{"version":"1.0","type":"rich","title":"slides bar","description":"A choropleth map of the United States displays county-level PM2.5 air pollution data across years, with a vertical slider and play button to animate through time from 2000 to 2021. Built with React and D3 v5, the visualization uses d3.geoPath with a geoIdentity projection to render county boundaries and a sequential YlGnBu color scale to encode particulate concentrations, allowing users to observe spatial and temporal pollution trends.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/9268856e8eeb4eaead92d10a8e22b824?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}