The Astana Times provides news and information from Kazakhstan and around the world. ASTANA – Kazakhstan ranked 29th globally for air pollution in 2025, with fine particulate matter (PM2.5) levels nearly five times above World Health Organization (WHO) guidelines, highlighting persistent environmental and public health challenges. PM2.5 refers to microscopic airborne particles that can penetrate deep into the lungs and bloodstream, increasing the risk of respiratory and cardiovascular… The po...