By: Mihir Vohra, Research Associate Particulate matter (PM) is a form of air pollution composed of a mixture of dust, chemicals, and liquid droplets. PM is primarily released into the air by industrial facilities that perform mixing and combustion. When people inhale PM in the air, it gets into their lungs and bloodstream, worsening existing lung diseases and even causing lung disease, heart disease, and lung cancer. Very fine particulate matter less then 2.5 micrometers in diameter – called PM2.5 – is especially dangerous. The National Ambient Air Quality Standards

By: Sharon Franklin Children play near an oil refinery in Los Angeles, California. Photo Credit: Etienne Laurent / EPA   Dr. Jake M. Robinson PhD Researcher, Department of Landscape, University of Sheffiel, South Yorkshire, England recently published an article in The Conversation entitled “How Racism and Classism Affect Natural Ecosystems”. In the article, Dr. Robinson cited a recent publication in Science Magazine by Christopher J. Schell of the University of Washington, Seattle, Washington, “The Ecological and Evolutionary Consequences of Systemic Racism In Urban Environments” , which reports the conscious and unconscious