Urban Sprawl in the U.S. and Increasing Air Pollution

Urban sprawl has been shown to have detrimental environmental effects through studies concerning biodiversity, flooding, and water pollution. However, based on our data from the EPA measuring ozone concentration for US Metropolitan Statistical Areas (MSAs, 2010 Standards), sprawl has had no effect on air pollution. Nevertheless, there are some interesting regional trends in the eight regions defined by the Bureau of Economic Analysis (Regions Displayed).

Created by: Gautam Sarkar, Morgan Darknell, Jake Shapiro, and Naveen Savio
In collaboration with: Suresh Lodha, Karthik Balakrishna, Christopher Bui, and Janesh Chhabra

Files Submitted:

index.html

bubbles 2.js

maps 2.js

style.css

Data.csv

us-regions.json

cb_2013_us_cbsa_5m(2).json

Data Sources:

Air Quality by City (U.S. Environmental Protection Agency)

MSA GeoJSON (Carto)

1990 Population Density (U.S. Census Bureau)

2000 Population Density (U.S. Census Bureau)

2010 Population Density (U.S. Census Bureau)

US States Data (alignedleft)

Visualization Sources:

Gapminder's The Wealth & Health of Nations

Air pollution mapped by city(World)

Air quality mapped by city(Europe)

Code Sources:

Making a legend (Susie Lu)

Making a slider (John Walley)

Pan and Zoom 1 (Mike Bostock)

Pan and Zoom 2 (Tom Roth)

Pan and Zoom 3 (Rutger Hofste)

String manipulation (Stack Overflow)

Changing Opacity (Stack Overflow)

d3 Book Examples (alignedleft)

Github Link