Estimation of Particulate Pollutants in Air — Flashcards

Answer

Particulate matter means solid particles and liquid droplets present in air. It becomes an air pollutant when its amount goes beyond a certain limit.

Answer

Particulate matter is considered an air pollutant when its concentration in air becomes too high. Extra particles spoil air quality and affect both health and the environment.

Answer

Common examples include pollen grains, dust in smoke, vehicular exhaust, fly ash, coal dust, cement, and mist. These are all tiny particles or droplets suspended in air.

Answer

A high concentration of particulate matter prevents solar radiations from reaching the earth's surface. At the same time, it also prevents heat from escaping from the earth's surface.

Answer

The net effect of blocking solar radiation from entering and stopping heat from escaping is one of the causes of global warming.

Answer

Particulate matter absorbs light and reduces visibility. It also causes various respiratory diseases.

Answer

Six similar clean glass slides are needed. Each slide is numbered from 1 to 6, and one side of each slide is coated with petroleum jelly so that particulate matter can stick to it.

Answer

The number is written in a laterally reversed manner so that it can be easily read from the other side of the slide. This helps identify the slide correctly after exposure.