PM2.5 Chemical characterisation campaign at Medellín from April 2019 to October 2022

This dataset consists of a file "GHYGAM-Campaign_PM25-Chemistry_April2019-October2022_Medellin.xlsx", which contains data from the PM2.5 chemistry characterisation campaign conducted in Medellín at latitude 6.2372341 and longitude -75.610466 from April 2019 to October 2022 by GHYGAM (Grupo de Higiene y Gestión Ambiental - Politécnico Jaime Isaza Cadavid). The file includes the daily (noon-to-noon) concentration of each compound measured in ug/m^3 units, categorized by compound type as the sheet names:

- PM2.5: this contains the concentration [ug/m^3] of PM2.5 measured by a Low-Vol and a High-Vol PM2.5 sampler. - Minerals: this contains the concentration [ug/m^3] of Be, Na, Mg, Al, Si, K, Ca, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, As, Se, Mo, Ag, Cd, Sb, Ba, Hg, Pb and Minerals; this last is the total minerals concentration.- Carbonaceous Matter: this contains the concentration [ug/m^3] of different species of Organic-Carbon (OC1, OC2, OC3, OC4, OC5) and Elemental-Carbon (EC1, EC2, EC3, EC4, EC5, EC6), pyrogenic Carbon (PyC), total Organic-Carbon (OC), total Elemental-Carbon (EC), total Carbon (C). This sheet also includes the ratio OC/EC, which is a non-dimensional index. - Anions: this contains the concentration [ug/m^3] of F^-, Cl^-, NO3^-, SO4^2- and total anions as "Anions".- Cations: this contains the concentration [ug/m^3] of K^+, Mg^2+, Ca^2+, Na^+ and total cations (Cations).- Levoglucosan: Levoglucosan, Mannosan, Galactosan, Galactose, Glucose,    Mannose, Glycerol, Inositol, Threitol, Mannitol, Arabinose, Xylose.

The file also includes:

- Calculated SOC: contains the concentration [ug/m^3] of the calculated secondary Organic Carbon (SOC). This is different from the other compounds calculated based on measured concentrations of OC and EC in this case. This sheet also contains SOC/OC, which is a non-dimensional index. - DtE: provides information on the distance in days to various Long-range transport (LRT) air pollutants events caused by volcanic degassing, dust storms, and biomass-burning emissions

For more detailed information about the campaign and the LRT events, please refer to (https://doi.org/10.5194/egusphere-2024-695; Velásquez-García et al., 2024)[in publication process]. For further questions, please contact Miriam Gómez-Marín at ([e-mail] or [e-mail])[campaign leader].

Financial support. This campaign has been supported by the Ministry of Science, Technology, and Innovation (grant no. 2020000100410); Ecopetrol (grant no. 3017481); the International Atomic Energy Agency (grant no. RLA7023); the United Nations (grant no. RLA7023) and the Área Metropolitana de Medellín y el Valle de Aburrá (grant nos. 734, 787, and 671).