Soybean allergen concentrations (RAST units per m3) measured in the sampler situated in the port authority customs building by study period phase. Barcelona, 1996–98
| Phase 1 | Phase 2 | Phase 3 | Phase 4 | |
|---|---|---|---|---|
| June 1996 | Up to November 1997 | Up to June 1998 | Up to December 1998 | |
| Days studied | 8 | 278 | 174 | 182 |
| Measures of central tendency | ||||
| Mean | 1089 | 184 | 74 | 59 |
| Median | 731 | 91 | 36 | 35 |
| Measures of dispersion | ||||
| Range | 143–3000 | 3–2095 | 8–415 | 8–636 |
| Standard deviation | 955 | 216 | 81 | 76 |