11–20 of 78 posts
Have they tried to filter directly the air at the source of pollution? For instance, placing filters on the coal heating facilities. It should be more efficient, as you wouldn't release as many particles in the air in the first place.
>Xian can experience heavy pollution in winter, with much of the city’s heating relying on coal. Have they tried to filter directly the air at the source of pollution? For instance, placing filters on the coal heating facilities. It should be more efficient, as you wouldn't release as many particles in the air in the first place.
On the other hand, I wonder if anyone's ever built a 100m placebo before. It could be a really interesting university study on the placebo effect in disguise.
Side node: is China doing ok in terms of innovation? If yes, how come in such a regime? I would expect everything to be stuck in bureaucracy.
>Xian can experience heavy pollution in winter, with much of the city’s heating relying on coal. Have they tried to filter directly the air at the source of pollution? For instance, placing filters on the coal heating facilities. It should be more efficient, as you wouldn't release as many particles in the air in the first place.
>Xian can experience heavy pollution in winter, with much of the city’s heating relying on coal. Have they tried to filter directly the air at the source of pollution? For instance, placing filters on the coal heating facilities. It should be more efficient, as you wouldn't release as many particles in the air in the first place.
Article mentions coal based heating being a big culprit, which is most likely used residentially in homes and small businesses.
So... to drop the PM2.5 amount by 15%, this tower must be removing many many tons of particulate matter every day. How is it removed from the filters they speak of? How expensive is that to do? I have some questions about the practicality. On the other hand, I wonder if anyone's ever built a 100m placebo before. It could be a really interesting university study on the placebo effect in disguise.
See the protests that erupt over mobile(Cell) phone towers. People claiming towers that weren't even on made them sick etc.
https://idle.slashdot.org/story/10/01/15/1516245/tower-switc...
Earlier quoted context omitted.
Article mentions coal based heating being a big culprit, which is most likely used residentially in homes and small businesses.
I thought it was a central source of coal heating, but if it's in every home, it's probably too difficult to filter then.
I really like how simple this solution is. Just using the sun to heat up air and have it go up through a bunch of filters, no moving parts. It strikes me as the right way to go about it. I wonder if you could use the greenhouses for growing plants, and the rising air to run small turbines..