Table 1 Average 24-h mean PM2.5 and PM10 concentrations for each household and ambient over the two weeks given alongside the WHO and UK guideline limits, with the number of individual days of exceedances of each guideline given in brackets (WHO, UK).
From: Using low-cost sensors to assess common air pollution sources across multiple residences
|  | Average 24-h mean concentration (μg m−3) | |||||
|---|---|---|---|---|---|---|
WHO limit | UK limit | H1 | H2 | H3 | Ambient | |
PM2.5 | 15.0 | – | 10.4 (1,–) | 19.8 (9,–) | 5.53 (0,–) | 4.82 (0,–) |
PM10 | 45.0 | 50.0 | 15.8 (0,0) | 31.0 (2,2) | 0,0) | 6.98 (0,0) |
