paving slabs Archives – The Green Optimistic green tech news, since 2008 Fri, 20 Aug 2010 20:08:40 +0000 en-US hourly 1 https://wordpress.org/?v=7.0 2667534 Researchers Develop New Green Paving Slabs to Improve Air Quality https://www.greenoptimistic.com/green-paving-slabs-air-quality-20100820/ https://www.greenoptimistic.com/green-paving-slabs-air-quality-20100820/#respond Fri, 20 Aug 2010 20:08:40 +0000 https://www.greenoptimistic.com/?p=9376 In the German cities, the toxic nitrogen oxide concentrations are exceeding the maximum levels but this is about to change with the new innovative paving slabs which are reducing the amount of the nitrogen oxide in the air.

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