Fig. 1.
Location of the sampling sites (1 – Katowice, 2 – Kielce, 3 - Strzyżowice).
Table 1.
Meteorological conditions during aerosol sampling.
| Site location | Sampling period | Aerosol measurements | Weather | |||
|---|---|---|---|---|---|---|
| Temperature | Relative humidity | Air pressure | Prevaling wind direction and speed | |||
| [°C] | [%] | [hPa] | [m s-1] | |||
| Katowice (urban- industrial), 50°14'15.8"N, 18°59'28.8"E | 25–26.01.22 | PM25, PM10, TC, Elemental carbon, Organic carbon | 0.5±0.1 | 97.1±1.8 | 990.3±0.6 | SW, 2.6 |
| Strzyzowice (rural), 51°34'09.8"N, 22°00'22.0"E | 9–10.02.22 | PM25, PM10, TC, Elemental carbon, Organic carbon | 7.3±1.0 | 78.0±5.7 | 1004.6±1.1 | SSW, 3.1 |
| Kielce (urban), 50°52'00.0"N, 20°38'20.8"E | 9–10.03.22 | PM25, PM10, TC, Elemental carbon, Organic carbon, Elemental composition | 1.2±3.9 | 64.4±13.11 | 991.2±9.6 | NE, 0.9 |
Fig. 2.
Diurnal variation of PM2.5 and PM10 concentrations against the background meteorological conditions at Kielce – A, Strzyżowice – B, and Katowice – C.
Fig. 3.
Micrographs of dust sample on quartz filter from Kielce indicating the size of particles (areas A and B).
Table 2.
Total content of dust and carbon parameters (TC, OC and EC) for different samples.
| Sites | Dust | Total content of dust TC | Organic carbon OC | Elemental carbon EC | |
|---|---|---|---|---|---|
| PM2.5 | PM10 | ||||
| [μg · m-3] | [μg] | ||||
| Katowice (urban-industrial) | 29.6±11.2 | 31.0±11.9 | 21.9±1.9 | 19.7±1.7 | 2.2±0.2 |
| Strzyzowice (rural) | 10.4±2.7H | 11.8±2.7H | 18.7±1.5 | 17.8±1.6 | 1.0±0.1 |
| Kielce (urban) | 13.3±4.9H | 20.8±8.6H | 27.0±4.1 | 23.3±4.2 | 3.6±0.3 |
Fig. 4.
EDS analysis, the distribution of signals to the elements forming dust particles (areas A and B).
Fig. 5.
Decomposition of signals into elements forming dust particles (areas A and B).
Fig. 6.
Example of a HYSPLIT 48 h air mass back-trajectory arriving at Kielce – A (9th–10th March), at Strzyżowice – B (9th–10th February), and at Katowice – C (25th–26th January). Arrival height: 50 m a.g.l.