Research Article
Enhancing PM2.5 Measurement Accuracy: Insights from Environmental Factors and BAM-Light Scattering Device Correlation
Table 5
Characteristics of PM measurement devices used in the study.
| | BAM 1020 | LCS (SDS011) |
| | Manufacturer | Met One Instruments | Nova Fitness | | Approximate price | USD 12,000–21,000 | USD 20 | | Measurement parameters | PM2.5, PM10 | PM2.5, PM10 | | Range | 0.0–1,000 μg/m3 | 0.0–999.9 μg/m3 | | Ambient temperature range | -40–55°C | -20–50°C | | Corresponding time | 1 h | 1 s | | Minimum resolution of particle | 0.1 μg/m3 | 0.3 μm | | Counting yield | Lower detection limit of <4.8 μg/m3 | 70% @ 0.3 μm
98% @ 0.5 μm | | Relative error | Exceeds US EPA Class III PM2.5 FEM standards for additive and multiplicative bias | Maximum of ±15% and ±10 μg/m3
@ 25°C, 50% RH | | Product size | cm | cm | | Power supply voltage | 100–230 VAC, 50/60 Hz, 0.4 kW, 3.4 A max @110 V | 5 V |
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