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A Dutch University will see if chemically tricked-out paving stones can clean the air.
The University of Twente (UT) has devised a concrete capable of converting the nitrogen oxide from car exhaust--the source of smog and acid rain--into a nitrate, another chemical that will wash away in the rain.
When fertilizers are applied heavily, high levels of nitrates can enter the soil or water and be toxic to humans or livestock. The University of Twente said that the nitrate production from its paving stones will be "harmless."
The researchers came up with the air-purifying paving stones by tapping the properties of titanium dioxide, a chemical that catalyzes chemical reactions when exposed to light.
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The University of Twente (UT) has devised a concrete capable of converting the nitrogen oxide from car exhaust--the source of smog and acid rain--into a nitrate, another chemical that will wash away in the rain.
When fertilizers are applied heavily, high levels of nitrates can enter the soil or water and be toxic to humans or livestock. The University of Twente said that the nitrate production from its paving stones will be "harmless."
The researchers came up with the air-purifying paving stones by tapping the properties of titanium dioxide, a chemical that catalyzes chemical reactions when exposed to light.
Want to know more?