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. 2022 Oct 30;56(22):15460–15469. doi: 10.1021/acs.est.2c05837

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© 2022 The Authors. Published by American Chemical Society

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Dual-carbon (Δ¹⁴C and δ¹³C)-based source apportionment of BC at Rwanda Climate Observatory. (A) Dual-isotope signatures of BC for dry period PM_2.5 aerosols. Colored circles represent the isotope signatures for BC for the study period (color represents time period), while black dots represent the isotope signatures for total carbon (TC = EC + OC) from October to November 2014 and May to September 2015.¹ (B) Relative source contributions (means and standard deviations), computed using eq 2.