Study of suspended particulate matter in air at the two widely different sites, in your area
Chapter 6. Practical Notebook Biology Standard XII
Chapter number six study of suspense particular matter in the air and different sites in your area
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6. Study of suspended particulate matter in the air at the two widely different sites, in your area.
Aim:
- To study the suspended particulate matter on the leaves collected from different sites.
Requirements:
Slides, coverslips, car buds, microscope, leaves of roadside plants, and leaves of a plant from glasshouse if available While walking on a busy road, in a crowded market, or in an industrial area, and then wiping the face with a white cotton cloth. One can observe a large number of pollutants (dirt) collected od on it.
Procedure:
- Take two leaves from the same location of the same plant. Wash one leaf under the tap and leave the other leaf as it is (i.e. unwashed). Put a drop of glycerine on the surface of the leaves.
- Spread glycerine with the help of a clean car bud.
- Smear this car bud on a clean slide, and observe under a microscope 4. Prepare separate slides for each sample.
- This experiment can also be performed by the following method.
Observation:
We can observe many air pollutants such as dust particles, carbon particles, pollen grains, spores, etc. Observation table
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