{"version":"1.0","type":"rich","title":"Multiple Line plot with Dropdown","description":"This interactive visualization displays monthly air quality levels for PM2.5 and PM10 particulates in London from 2010 to 2018, with each year represented by a colored line. A dropdown menu allows users to switch between different pollutant measurements, updating the y-axis and line chart accordingly. Built with D3 v5, the SVG rendering uses `scaleTime` and `scaleLinear` for axes, `nest` to group data by year, and `line` with `curveBasis` for smooth paths. Data comes from the Kings College London Air Quality Dataset via the London Datastore.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/a6dee625b91346529809b26101ef6f2d?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}