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COMENIUS: DUST

COMENIUS: DUST. TOMÁŠ FRONĚK, FILIP ŠIMÁNA. PROBLEMS OF DUSTNESS AND ASPIRATIONS OF OBSERVATIONS. Aspiration of observations was to determine how much dust there will be on the definite place after 2days and after 1hour, too

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COMENIUS: DUST

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  1. COMENIUS: DUST TOMÁŠ FRONĚK, FILIP ŠIMÁNA

  2. PROBLEMS OF DUSTNESS AND ASPIRATIONS OF OBSERVATIONS • Aspiration of observations was to determine how much dust there will be on the definite place after 2days and after 1hour, too • For this we had got some special paper which absorbed dust – there was a problem, when wind started to blow, the sticky tape didn‘t keep this paper • At the end of our observations we had to analyse the samples (with microscope) and we wrote the needed entries

  3. WORK ORGANIZATION: SEPARATING INTO WORK-GROUPS • In the beginning we separated into work-groups, in every group there were 6 people • Next step was to choose a place on which we will be investigating dustness • During 2 weeks we had to take away three samples – each sample was on the definite place for 48hours

  4. MEASUREMENT OF DUSTNESS

  5. MEASUREMENT OF 1.GROUP • Place: Small gym, under a basketball hoop • Measurements of dustness: • 1. picker 67mm2 • 2. picker 124mm2 • 3. picker lost

  6. Measurements of 1. group • Graph of dustiness:

  7. Measurements of 1. group • Table of particles in pickers:

  8. MEASUREMENT OF 2.GROUP • Place: The first floor, in the corridor next to the staff room • Measurements of dustiness: • 1. Picker 53mm2 • 2. Picker 24mm2 • 3. Picker 40mm2

  9. Measurements of 2. group • Graph of dustiness:

  10. Measurements of 2. group • Table of particles in pickers:

  11. MEASUREMENT OF 3.GROUP • Palce: In front of the main entrance, in the south, out • Measurements of dustiness: • 1. Picker 17mm2 • 2. Picker 12mm2 • 3. Picker 25mm2

  12. Measurements of 3. group • Graph of dustiness:

  13. Measurements of 3. group • Table of particles in pickers:

  14. Measurements of 3. group • Weather:

  15. MEASUREMENT OF 4.GROUP • Place: Side entrance, in the east, outside • Measurements of dustiness : • 1. Picker 17mm2 • 2. Picker 9mm2 • 3. Picker lost

  16. Measurements of 4. group • Graph of dustness:

  17. Measurements of 4. group • Table of particles in pickers:

  18. Measurements of 4. group • Weather:

  19. PROBLEMS (which occured during observations) • In the assignment there wasn‘t a very good ingenious fix of paper – which could absorbe the dust – two pieces of this paper blew away • Then we had to edit the original assignment – the task was to count particles of dust on 1cm2 but we could not see such a big area in the microscope • So we observed dust particles on 1mm2

  20. CONCLUSION • The biggest dustness was in the gym, under the basketball hoop • The lowest dustness was outdoor, near the backdoor • There was no insect

  21. THANK YOU FOR YOUR ATTENTION

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