Corrigendum to 'Organic composition of size segregated atmospheric particulate matter, during summer and winter sampling campaigns at representative sites in Madrid, Spain' [Journal of Atmospheric Research 132-133 (2013) 345-361]

摘要

The authors regret missing the following corrections: 3. Molecular diagnostic parameters and data analysis The formula to determine the contribution of plant waxes, WAN Cn, was incorrect (page 347, left column). The correct formula is WAN C_n＝C_n -(C_(n＋1)＋C_(n-1)/2) 4. Results and discussion 4.2. Organic compounds and source assignment In page 351, right column, where it reads: The plant wax contributions to the total alkanes were slightly higher than 50% in all fractions in both seasons (Table 1). This result suggests that the percentage of the alkanes measured had a similar contribution from higher plant waxes and petroleum residues. This is not surprising since, at the roadside, emissions from the intense traffic are combined with the biogenic inputs from a big park (Retiro) in the adjacent area The urban background area is also included in a big park in the suburbs of the city. The contribution from plant waxes was somewhat higher in the summer and lower in the winter, especially for the coarsest fractions. This is due to the fact that atmospheric conditions in summer foster the emissions of vegetation wax alkanes. The results show that, although there was a higher plant wax contribution in the summer, the petroleum residue concentration was even higher."