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. 2013 Feb 6;8(2):e55642. doi: 10.1371/journal.pone.0055642

Table 3. GHG emissions per unit area in the lifecycle of building materials.

GHGs GHG emissions in the lifecycle kg/m2 GWP j
Steel-concrete a Masonry-concrete a
CO 20.1 7.5 2
CO2 954.2 828.51 1
NOx 6.2 2.68 310

Note:

a

the emission factors of steel-concrete and masonry-concrete refer to Liu’s study [33].