Research Article
Spatial Extent and Distribution of Ambient Airborne Particulate Matter (PM2.5) in Selected Land Use Sites in Nairobi, Kenya
Table 2
Average standard gravimetric measurement and sensor-based averages of different PMS7005 sensors and their scaling factors.
| Average gravimetric concentrations (μg/m³) | Sensors | Average sensor concentrations (μg/m³) | Scaling factor |
| 20.70 ± 4.12 | PMS7003Z | 16.23 ± 9.27 | 1.28 ± 0.74 | PMS7003N | 18.92 ± 10.62 | 1.09 ± 0.58 | PMS7003M | 15.78 ± 8.47 | 1.31 ± 0.78 | PMS7003A | 18.37 ± 9.80 | 1.13 ± 0.60 | PMS7003C | 14.16 ± 3.61 | 1.46 ± 0.93 | PMS7003D | 17.60 ± 10.13 | 1.18 ± 0.65 | PMS7003L | 18.87 ± 9.17 | 1.10 ± 0.58 | PMS7003I | 17.33 ± 11.13 | 1.19 ± 0.66 |
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Note: the letters Z, N, a, K, A, C, D, L, and I are used to differentiate the sensors since they are the same model (PMS7003).
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