Table 1 Proportion of fine and coarse fraction of the collected PM estimated for each city and each season. The proportion is expressed as mass of the fine fraction in percent of the total mass (coarse + fine fraction) collected by high-volume cascade impactors in each sampling period.
Spring (percent fine of total) | Summer (percent fine of total) | Winter (percent fine of total) | |
|---|---|---|---|
Lodz | 58 | 54 | 77 |
Rome | 53 | 52 | 68 |
Oslo | 42 | 60 | 51 |
Amsterdam | 55 | 60 | 56 |