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AQI in America with Histogram

✓ Published2🌍 Public
CChase Hall
Last edited Jul 29, 2022
Created on Jul 28, 2022
Forked from map with aqi data

This example combines a choropleth map of U.S. states with a histogram of air quality index (AQI) values over time. The map uses d3.geoAlbersUsa projection and d3.geoPath to draw state boundaries, with circles positioned by latitude and longitude and colored by a d3.scaleQuantile. The histogram below aggregates AQI readings by month using d3.histogram and d3.timeMonths, computing monthly means. Both visualizations are rendered as SVG within a React component, using data from a CSV file of ozone measurements.

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