Generation, Resuspension, and Transport of Particulate Matter From Biochar-Amended Soils: A Potential Health Risk.

ABSTRACT: Large-scale soil application of biochar is one of the terrestrial carbon sequestration strategies for future climate change mitigation pathways, which can also help remove and sequester pollutants from contaminated soil and water. However, black carbon emissions from biochar-amended soils can deteriorate air quality and affect human health, as the biochar particles often contain a higher amount of sorbed toxic pollutants than the soil. Yet, the extent and mechanism of inhalable particulate matter (PM₁₀) emission from biochar-amended soils at different wind regimes have not been evaluated. Using wind tunnel experiments to simulate different wind regimes, we quantified particulate emission from sand amended with 1-4% (by weight) biochar at two size fractions: with and without <2-m

SUBMITTER: Ravi S 

PROVIDER: S-EPMC7659978 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature