Air pollution includes particulate materials and toxic pollutants that come from many different sources. These employ laser technology to induce fluorescence in any viable particles in air drawn through the instrument and provide immediate detection and enumeration of microbial contaminants. Even his air was different. He kept thinking that he must be using his new mug incorrectly – perhaps he had missed an instruction or technique unique to this cup that was designed to help prevent spills or something. Air definition is - the mixture of invisible odorless tasteless gases (such as nitrogen and oxygen) that surrounds the earth; also : the equivalent mix of gases on another planet. Air resistance or drag, acts against gravity on falling objects and this is how parachutes work. 139. Air pollution is a problem that greatly affects those living in large, urban centers and the Third World. 84. Swimmers also use water resistance to help them move forward. Recently, instruments have been developed that are capable of detecting airborne microorganisms in real time. 287. 60. What Are Examples of Air Pollution? It went like this – He was trying to drink his coffee, but, every time he tried, nothing would come out. Those affected by poor air quality can develop serious breathing and health problems such as asthma, chronic bronchitis, and even emphysema. The story was one of many great examples of air pressure in everyday life. For example, one acre of forest absorbs six tons of carbon dioxide emitted from industrial activities, and produces four tons of oxygen in exchange [4]. Carbon dioxide bubbles diffusing from an opened bottle of soda cause the soda to become flat as it loses its carbonation. air Sentence Examples. Examples of diffusion include the dispersion of tea in hot water and smoke from a lit cigarette spreading in the air. Guidance on safe handling and storage of air guns and air rifles. 228. If you use assistive technology (such as a screen reader) and need a version of … 196. How to use air in a sentence. 111. #6 Soil 103. Even though modern anthropogenic activities pollute air at an unprecedented level, many vital natural processes such as photosynthesis are constantly replenishing clean air again. Toxic pollutants are particles that have a significant impact on health. She paused, sucking in a deep breath, and then threw her hands in the air in defeat. The air was balmy, with a tang of the sea in it. Synonym Discussion of air. Particulate materials include large particles, such as dust, lead or asbestos, and small particles, including nitrates and sulfates. Most of the time I'm at the pool or resting in the air conditioned house.