{"version":"1.0","type":"rich","title":"Fork of Multiple Line plot with Dropdown","description":"This visualization displays monthly air quality measurements for London from January 2010 through August 2018, using data from the Kings College London Air Quality Dataset in the London Datastore. A dropdown menu lets users select which pollutant to plot, showing time-series lines for each year from 2010 to 2018, colored by year. The chart uses D3 v5 with d3.line, d3.scaleTime, d3.scaleLinear, d3.nest, and d3.axisBottom/axisLeft to render SVG paths with animated transitions. A color legend identifies the year for each line.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/9afea31ff17e4b75bb22ecb2f3e7b7bf?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}