{"version":"1.0","type":"rich","title":"Fork of map of epa data sites","description":"This D3.js and React visualization displays a map of US Environmental Protection Agency (EPA) air quality monitoring sites, with each site represented by a circle sized according to its AQI value using a square root scale from `d3.scaleSqrt`. The map is rendered using an SVG-based equirectangular projection via `d3.geoPath` and `geoAlbersUsa`, with US state boundaries and interiors drawn from a TopoJSON atlas loaded through `topojson.feature` and `topojson.mesh`. The underlying data is fetched as a CSV file containing latitude, longitude, and AQI measurements.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/dcb14f885766460f9c4e13b12c400fd6?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}