Modelling benzo[a]pyrene in air and vegetation for different land uses and assessment of increased health risk in the Iberian Peninsula
2017
Ratola, Nuno | Jiménez-Guerrero, Pedro
The ability of the modelling system WRF + CHIMERE implemented with high spatial and temporal resolution over the Iberian Peninsula (IP) to represent the levels of benzo[a]pyrene (BaP) in air and vegetation was tested in areas where different land uses are observed. Biomonitoring data available on the levels of polycyclic aromatic hydrocarbons (PAHs) in pine needles from the IP were used to estimate the atmospheric concentrations of BaP and, at the same time, fuelled the comparison of the vegetation representations given by the model. A total of 70 sites were sampled, including urban, industrial, rural and remote locations, which revealed different performances of the method for air and vegetation concentrations of BaP. The validation of this chemistry transport model (CTM) was complemented with the data available from the European Monitoring and Evaluation Programme (EMEP) air sampling network. This, in association with a quantitative risk assessment (QRA) method, allowed the estimation of the increased risk of lung cancer due to exposure to BaPs in the IP for three target values set by the European Union.
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