What are the effects of trees/plants on PM2.5 pollution? Are there plants that catch more? Do damp leaves catch more?

Does watering plants with a mist pull extra microparticles out of the air vs a stream? (if so, Do plants mind or benefit from the extra stuff in their water?)

Are there any "permaculture" solutions for air filtration? Could a filter caked with pm2.5 black carbon and whatnot be useful for anything else? Can I manufacture a filter that will reduce pm2.5 using home grown plant materials?

What if I converted a wall of my shed into all filtration material, made it airtight, and pushed air out the other side of the shed under solar power? How would 100sqft of filter give flexibility of filter media?

If I made a giant/parallelized bong in my backyard that constantly pulled air through water to try to catch microparticles, how big would it have to be to have an appreciable effect?

Interesting projects studying live tree graft joinery techniques - how to guide tree growth into structures with engineered utility.

One of my favorite videos from Kirsten Dirksen's lovely channel.

Started my food forest last spring.

• Put down cardboard and covered in alder woodchips
• Planted a couple each of grape, blueberries, olive, marionberry, sichuan peppercorn, green tea - basically trying things out and seeing what works in my climate

Was pleasantly surprised when I got out there this year, and everything made it through the winter! (Albeit some appears to be a popular graze with the deer - could slow growth down a lot if I don't protect soon)

Pulling weeds out of sheetmulched woodchips is great - so easy even though the soil underneath is overly compacted clay sand.