{"version":"1.0","type":"rich","title":"Fork of Fork of map of epa data sites","description":"This visualization displays EPA air quality monitoring sites across the contiguous United States, where each circle represents a sample location and its radius encodes the ozone AQI value. The map uses React with the `d3.geoAlbersUsa` projection and `d3.geoPath` to render state boundaries and interiors from a US Atlas TopoJSON source. EPA station data, loaded via `d3.csv`, is positioned by geographic coordinates, with circle sizes scaled using `scaleSqrt` to give visual weight to higher AQI readings.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/0579f174a8424246bc0dc7e912151ed3?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}