{"version":"1.0","type":"rich","title":"D3 viz 1","description":"This visualization shows daily air pollution trends for four pollutants—NO2, O3, SO2, and CO—in Phoenix, Arizona, using data from January 2000. Multiple time-series lines are drawn in an SVG, with each pollutant assigned a distinct color via `d3.scaleOrdinal` and `d3.schemeCategory10`. The code uses `d3.csv` to load the dataset, `d3.timeParse` to convert dates, and `d3.line` to generate the paths. Axes are rendered with `d3.axisBottom` and `d3.axisLeft`, and a legend is placed at each line’s final data point.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/1e72c709bf7547518c70b736d2682314?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}