New App from the U.S. EPA Maps Environmental Justice

A publicly available web tool allows access to maps that overlay environmental impacts and the populations they impact (or the populations that manage to avoid such impacts, for that matter).

1 minute read

July 23, 2015, 10:00 AM PDT

By James Brasuell @CasualBrasuell


Heather Hansman shares news about a new tool from the U.S. Environmental Protection Agency called EJSCREEN.

"EJSCREEN, which anyone can use through the EPA's website, pulls in the agency's pollution data and intersects it with census data, so users concretely see where groups and industries are being particularly destructive to the environment, and where people are being disproportionately exposed to pollution," writes Hansman.

Twelve environmental indicators populated the map, including air particulate matter and lead paint. The tool also overlays six demographic indicators. EJSCREEN also generates EJ Indexes, which compile environmental and demographic data for comparisons and perspective.

As for the ambitions behind the tool, Hansman explains why both the EPA and Jane and John Q might find the tool useful: "The EPA is using the tool to identify areas with undue environmental burdens, to pick project areas and to show progress in active cleanup efforts. But it might be even move valuable for individuals and local groups wanting concrete details about what’s going on in their own communities."

Tuesday, July 14, 2015 in Smithsonian Magazine

Young Professional

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban and Environmental Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban and Environmental Planner

Get top-rated, practical training for planners

"Planetizen federal action tracker" logo superimposed over black and white image of US Capitol dome.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

September 16, 2026 - Zachary Whalen

Passengers board an Amtrak train under a cloudy sky.

Amtrak, CN end decades-long dispute with eight-year agreement

The new operating agreement establishes an updated framework for the companies to work together, including processes to resolve disputes.

September 18, 2026 - Mass Transit

The Gross Reservoir, a large body of water surrounded by trees and mountains.

Judges permit Denver to divert 77,000 acre feet from the Colorado River for reservoir expansion

Overuse and climate change have caused the Colorado River’s water levels to plummet.

September 18, 2026 - Inside Climate News

A painted bus lane in NYC.

NYC DOT wants faster, more permanent street upgrades

The city is examining ways to build more concrete infrastructure without getting entangled in 'decades-long' projects.

5 hours ago - NYC Streetsblog

A woman looks at a utility bill.

'Something we’ve never seen before:' rising utility rates could strain city finances nationwide

Data centers, climate change and other factors have caused utility rates in the United States to increase by 38% since 2020.

6 hours ago - Smart Cities Dive

A person scuba diving in a coral reef off Guam.

Trump to overrule local leaders, lease millions of acres of America’s Pacific Island territories’ seafloors to mining companies

International law says that the Indigenous people of America’s territories have a right to prior and informed consent regarding projects that impact their countries.

7 hours ago - Grist