Estimation of Particulate Pollutants in Air

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Solid particles and liquid droplets present in air are called particulate matter. Examples include dust particles, pollen grains, smoke particles, vehicular exhaust, fly ash, coal dust, cement dust, a…

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Particulate matters are considered air pollutants because their presence in air beyond a certain limit causes air pollution. They reduce visibility, cause respiratory diseases, and contribute to globa…

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1. Pollen grains, 2. Dust particles in smoke, 3. Vehicular exhaust particles, 4. Fly ash, 5. Coal dust, 6. Cement dust, 7. Mist…

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Particulate matters contribute to global warming through two effects: 1. They prevent solar radiation from reaching Earth's surface, 2. They also prevent heat from escaping from Earth's surface. The c…

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Materials needed: 1. Six clean glass plates/slides, 2. Marker pen, 3. Petroleum jelly, 4. White paper sheet, 5. Magnifying glass or microscope, 6. Labels or paper for numbering…

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Petroleum jelly is used to coat one side of the glass slides because it acts as a sticky surface that traps and holds particulate matter from the air, allowing us to collect and observe the particles …

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Numbers should be written in laterally reversed manner so that when you observe the slide from the coated side (which faces up), you can easily read the numbers correctly and identify each slide prope…

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The slides should be placed at different locations: 1. Open space (terrace), 2. Window sill, 3. Different rooms (bedroom, kitchen), 4. Inside a table drawer, 5. In the garden. This helps compare pollu…