Indoor Air Remediation Using Biochar from Bark: Impact of Particle Size and Pollutant Concentration

Table 3

Porosity evaluation of biochar samples with different particle sizes.

Sample ID	Specific surface area (m^2/g)	Total pore volume (cm^3/g)	Microporous surface area (m^2/g)	Micropore volume (cm^3/g)
BM
P1
P2
P3
P4
P5
P6

Note: The results are expressed as . Data in the same column with different letters were significantly different ().