{"version":"1.0","type":"rich","title":"Pollution Around America and Over Time","description":"A choropleth-free bubble map displays air quality index measurements across the United States, with circles overlaid on state boundaries rendered via `d3.geoAlbersUsa` and `d3.geoPath`. A brushed time-series histogram beneath the map uses `d3.brushX` and `d3.bin` to filter the circles by collection date, updating the map dynamically. Data comes from a CSV of ozone readings, while state outlines derive from TopoJSON via the `feature` and `mesh` APIs. SVG elements render all visuals within a React framework.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/23fdd2fe48b442cea08e6b4465c18772?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}