{"version":"1.0","type":"rich","title":"AQI Over Time","description":"This visualization tracks Air Quality Index (AQI) over time for Chinese cities, beginning with a series of hourly line charts for Beijing, and then shifting to a stacked area chart showing monthly AQI totals for Beijing, Tianjing, Shanghai, and Guangzhou. The first chart uses Vega-Lite and d3.csv to render the data, while the second employs d3.stack, d3.area, d3.areaLabel, and d3.scaleOrdinal to build the stacked areas. Both chart components are responsive, re-rendering on window resize to fill the available viewport.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/b5273b4176594ad2aee24b769c078e5c?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}