Page 4 - 7 เป็นธรรม 6-2 ปลูกต้นไม้ลด PM 2.5

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The objective of this project is to reduce PM 2.5 behind the Secondary 6/2 balcony. Our
goal is to determine which trees can filter dust. Location selection

Create an experiment schedule and design work methods, record results. Preserve all
information by taking pictures and recording each time. Including corrections after consulting

with teachers.
The results of the study and project preparation found that Each tree is not able to filter
dust as well. And some of them were only able to catch dust

In conclusion, trees can actually filter dust, but they do not filter much and can filter at
different times.

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