{"version":"1.0","type":"rich","title":"PM2.5 Around the World","description":"This visualization combines a choropleth map and line chart to explore global PM2.5 air pollution levels from 2010 to 2017. A slider selects the year, updating the map's color shading and highlighting the corresponding point on the time-series chart. Built with D3 v5, it uses `d3.geoPath` with a Natural Earth projection for the map and `d3.scaleLinear` for chart axes. The data comes from a Kaggle dataset of mean annual PM2.5 exposure for 240 countries, with missing values shown via a diagonal hatch pattern.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/1c11e1a5ad0b449eb51f9775dc8d1c87?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}