{"version":"1.0","type":"rich","title":"London Air2","description":"This visualization displays monthly air quality measurements from the Kings College London dataset, with pollutant concentrations shown over time. Users can select different pollutants via a dropdown menu, while interactive legends filter data points by year and by measurement type (Roadside or Background). The SVG scatter plot uses d3.scaleTime, d3.scaleLinear, d3.scaleOrdinal with interpolateBuPu colors, and animated transitions for circles. Tooltips appear on hover, and legend clicks trigger opacity and radius changes to emphasize selected categories.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/af12fc6c7bbb4977b06c3975a10dd8e9?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}