So… Trees sucks in co2 and release o2 during day…. and doing the other way around at night… how would that help cleaning up air pollution then?

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Call me stupid but I was told that while yes, Trees does absorb CO2 form the air and give Oxygen back during daytime. There’s also a reason to not have tree in your enclosed bedroom during night as it release all the CO2 absorbed.

So my question was that people are saying to plant tree to help purify the air in streets, city, or any dense population location. If the statement in first paragraph’s correct. wouldn’t that just result in that the trees would give the o2 and purify the air during day time and just flood the street with co2 during night? I’m confused…

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Anonymous 0 Comments

Trees undergo photosynthesis during the day, absorbing carbon dioxide (CO2) and releasing oxygen (O2). At night, they respire, taking in oxygen and releasing a smaller amount of CO2. Overall, the net effect is a decrease in atmospheric CO2. The CO2 release at night is negligible, especially in the context of air volume in spaces like bedrooms. Beyond CO2 absorption, trees in urban areas also filter other pollutants, provide shade, reduce dust, and mitigate the urban heat island effect, making them crucial for improving air quality and combating climate change.

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