Background & objectives: Environmental standards are quantitative criteria for protecting the environment from pollution and degradation. One of the solutions to improve air quality status is to use reasonable limits to prevent excessive release of airborne contaminants from their various sources. On the other hand, these standards are effective in evaluating air pollution reduction strategies....

The complex and inefficient systems by which health care is delivered in the United States are a study disparities. Two of most perennial these disparities difference delivery behavioral versus nonbehavioral one that divides rural settings from found suburban urban settings. How do we deliver settings, what key differences? With practice innovations, some born coronavirus disease 2019 (COVID-19...