From GIS software company ESRI, this free tool lets users enter places where they lived for more than two years at a time, and the site provides you with a personalized "place history" pdf report and shareable maps detailing local heart attack rate and nearby toxic chemicals for each location.

NOAA's "State of the Coast" contains both quick facts and detailed information regarding this 95,000-mile-long zone and all the players involved. It generally addresses longer-term issues, such as environmental degradation, climate, hazards, economics, and demographics.

A study was published in Environmental Health Perspectives found that the most sprawling US cities have 2.6 times the risk of deadly extreme heat events than those with the least sprawl — regardless of the population, location, or rate of growth of an urban area.

Both polycyclic aromatic hydrocarbons (primarily from combustion sources) and pesticides are pervasive in 8 diverse US national parks, according to two Environmental Science & Technology studies by international teams of university and government agency researchers.

After hearing for years about public concern over the adverse health and environmental effects of hydraulic fracturing used to increase production of natural gas, US EPA has begun a process (including 4 public meetings in July; CO, NY, PA, TX) to decide what the issues are and how to address them.

The University of Massachusetts Political Economy Research Institute's "Toxic 100 Air Polluters" indicates 4 of the worst 12 air polluters are petroleum companies. You can use this resource to look at other groupings of companies, such as utilities, or drug, chemical, or metals manufacturers, or to look at any of the individual companies.