{"version":"1.0","type":"rich","title":"Fork of Fork of new data","description":"This interactive map shows US county-level PM2.5 air pollution concentration changes from 2000 to 2021. A vertical slider controls the year, with a play button animating through time. The map renders with d3.geoPath and geoIdentity using SVG paths, colored by a sequential YlGnBu scale. Each county path includes a tooltip displaying the state, county name, and pollution value. The visualization updates its 975×500 SVG at each year change, with data loaded from CSV files.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/2a3b364e1ddd4a2abd1ccbb9d6b49d2c?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}