PM2.5 Chemical Characterization in Medellín, Colombia from 2019 to 2020

112 samples of PM2.5 were collected at an urban background site in Medellín, Colombia between March 2019 and March 2020. The dataset contains daily PM2.5 concentrations and chemical characterization data from ICP-MS, ion chromatography, and thermal/optical analysis. Author Mauricio A. Correa-Ochoa published the data on figshare under a CC-BY-4.0 license.

Use Cases

• Identify major pollution sources based on Principal Component Analysis results mentioned in the description
• Analyze the influence of dry and wet periods on PM2.5 concentration levels
• Study the impact of long-range transport from regional basins using integrated back-trajectory and fire hotspot data
• Compare the contributions of local traffic and industrial emissions versus episodic biomass burning events

Strengths

• 112 PM2.5 samples collected over a full year from March 2019 to March 2020
• Daily PM2.5 concentrations are provided, ranging from 8.15 to 37.86 g/m³ with a mean of 21.73 ± 6.75 g/m³
• Chemical characterization includes metals, anions, and carbonaceous species from multiple analytical techniques
• Principal Component Analysis identified five major pollution sources with explained variance percentages

Limitations

• Row count is unknown, which may limit suitability assessment
• Column-level documentation is absent; field semantics must be inferred after download
• The dataset is very small at 5.5 KB, indicating limited scope

Provenance

Source

figshare

Collection Method

Samples collected at an urban background site in Medellín and analyzed using ICP-MS, ion chromatography, and thermal/optical analysis.

Time Range

March 2019 to March 2020

Freshness

Last updated 2026-05-27 17:42:04; freshness should be verified

Geography

Medellín, Colombia, an urban area in a topographically constrained Andean valley