What term describes solid and liquid particles that remain suspended in the atmosphere?

The term that best describes solid and liquid particles suspended in the atmosphere is "particulates." Particulates encompass a broad range of tiny particles, including dust, smoke, and liquid droplets that can be found in the air. They vary in size, composition, and origin, contributing to air quality and environmental health.

While "aerosols" also refers to tiny particles or droplets suspended in gases, it specifically implies that these particles are dispersed within a gaseous medium, often in the context of environmental science or atmospheric studies. The term "pollutants" refers to any substance that can cause harm to the environment or health when they are present in excessive quantities but does not exclusively refer to solid or liquid particles. "Dust" is a specific type of particulate but does not capture the entire range of solid and liquid particles found in the atmosphere. Thus, "particulates" is the most accurate and inclusive term for the various forms of solid and liquid particles suspended in the air.