Air quality in the U.S. has improved tremendously over the last 50 years thanks to the Clean Air Act Amendments of 1970, but not all neighborhoods have benefited from these improvements. The law mandated the Environmental Protection Agency (EPA) to establish National Ambient Air Quality Standards (NAAQS) and to determine which areas of the country meet the standards and which do not, setting...

I have worked in public health for close to 25 years, and most of that time has been at state and local health departments where I oversaw prevention-focused programs on infectious diseases, chronic disease, and even maternal and child health. I spent a lot of time reading and researching and trying to understand how to help people prevent poor health outcomes.   Even 25 years later,...