{"version":"1.0","type":"rich","title":"Final Project","description":"This interactive visualization displays patterns in pollutant concentrations—SO₂, particles, and NO₃—across U.S. states from 2008 to 2018. Users select a pollutant via radio buttons to trigger an animated view of the data. The visualization uses D3.js (v4) with SVG rendering to draw the charts, applying `d3.format` for decimal precision and dynamically updating the visualization by removing and redrawing groups. The animation is driven by JavaScript event handlers, with data stored in arrays and visualized through connected line or scatter plots.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/adecffec653542939be573c82f9f0479?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}