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Fork of Pollution in US with counties by React and d3

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AAndres de la Garza
Last edited Mar 26, 2021
Created on Mar 26, 2021

This interactive choropleth map visualizes PM2.5 concentration levels across US counties from 2000 to 2018. A vertical slider and play button animate through time, updating the color-coded counties using React’s state management. The SVG map uses `d3.geoPath` with `geoIdentity` projection for county and state boundaries from the us-atlas TopoJSON. Data from a CSV file is filtered by year, and the sequential YlGnBu color scale is applied via `d3.scaleSequential` and `d3.interpolateYlGnBu`. Hovering reveals county and state names with pollution values via tooltips.

AI-generated description

The final version of the Data Visualization final project.

Data of PM2.5 concentration from PM2.5 by County.

County and state boundries from US county altas.

Adapted and extended from Mass School District Boundaries

Inspired by Choropleth.

MIT Licensed

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