Table 2.
Sampling points, geographical location, and sort of sampled sources.
| Town | Sample Name | Coordinates (UTM) * | Source |
|---|---|---|---|
| Calafell | C1 | 31T 79,177.10 61,802.90 | Darkened concrete fence of a garden house |
| C2 | 31T 79,134.60 61,766.60 | Darkened concrete wall | |
| C3 | 31T 79,796.60 61,222.00 | Darkened concrete wall | |
| C4 | 31T 78,841.90 61,117.50 | Blackened block wall | |
| C5 | 31T 78,584.00 61,023.10 | Darkened concrete wall | |
| Montbrió del Camp | M1 | 31T 32,720.20 54,291.00 | Darkened concrete wall |
| M2 | 31T 32,658.70 54,252.30 | Darkened brick wall | |
| M3 | 31T 32,414.20 54,091.30 | Darkened concrete wall | |
| M4 | 31T 32,413.80 54,090.90 | Darkened concrete wall | |
| M5 | 31T 32,378.60 54,109.80 | Darkened clay wall | |
| Els Pallaresos (Urban area) |
P1 | 31T 54,937.40 59,758.10 | Darkened concrete wall |
| P2 | 31T 54,954.60 59,694.90 | Darkened brick wall | |
| P3 | 31T 54,952.50 59,638.90 | Darkened concrete wall | |
| P4 | 31T 55,523.50 59,652.30 | Darkened concrete fence of a home garden | |
| P5 | 31T 55,545.50 59,571.40 | Darkened metal railing of a small natural park | |
| Els Pallaresos (Industrial area) |
S1 | 31T 54,978.50 59,782.70 | Darkened concrete wall |
| S2 | 31T 54,945.50 59,754.60 | Darkened metal fence near a tree | |
| S3 | 31T 54,916.20 59,764.70 | Blackened cement blocks wall | |
| S4 | 31T 54,899.30 59,817.50 | Darkened PVC pipe for pluvial drain | |
| S5 | 31T 54,946.80 59,861.60 | Darkened concrete wall | |
| Reus | R1 | 31T 49,684.80 57,714.70 | Darkened concrete wall |
| R2 | 31T 49,916.90 57,650.50 | Darkened concrete wall | |
| R3 | 31T 42,102.90 57,713.20 | Darkened concrete wall | |
| R4 | 31T 46,377.40 57,475.40 | Darkened brick wall | |
| R5 | 31T 41,270.60 58,092.00 | Blackened block wall |
* UTM = Universal Transverse Mercator.