PAH Concentrations and Source Apportionment in Qingdao Port Sediments

178 ± 94 ng/g dw average concentration of Σ16PAHs was measured in 24 surface sediment samples from Qingdao Port. The study by Congbo Xiong, posted in 2026, used PMF and fugacity models to identify four pollution sources and simulate contaminant fate. Sediment was found to be the primary sink, accounting for 72%–85% of the total PAH mass.

Use Cases

• Quantifying pollution source contributions based on PMF-identified factors like coal/biomass combustion and ship exhaust.
• Simulating contaminant fate and distribution across environmental media using the described fugacity model.
• Assessing ecological risk by comparing measured PAH concentrations against the CCME ISQG benchmark.
• Evaluating human health risk via calculated lifetime intradermal carcinogenic risk (ILCR) values.

Strengths

• Model validation results are provided, including an R² of 0.92 and NSE of 0.86.
• Source contributions are quantified with bootstrap confidence intervals reported within ±5%.
• Spatial analysis is included, showing the highest average concentration (256 ± 84 ng/g dw) at the bulk cargo terminal.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The dataset is small (17.1 KB), indicating limited scope.

Provenance

Source

Congbo Xiong

Collection Method

24 surface sediment samples collected from Qingdao Port (Jiaozhou Bay), analyzed using PMF and fugacity models.

Freshness

Last updated 2026-05-21 05:35:11; freshness should be verified.

Geography

Qingdao Port (Jiaozhou Bay), China