Table 1.
Description of each home sampled for combustion-derived nanoparticles in Xuanwei and Fuyuan, China.
| House | Stove type | Chimney present? | Fuel type | Duration of nanoparticle measurement (min) | Average nanoparticle measurement (μm2/cm3) | Average PM2.5 (μg/m3) | Figure |
|---|---|---|---|---|---|---|---|
| 1 | High stove | Yes | Bituminous coal | 1320 | 24.2 | 108.7 | – |
| 2 | High stove | Yes | Bituminous coal | 600 | 13.8 | 45.6 | – |
| 3 | High stove | Yes | Bituminous coal | 1230 | 27.2 | 142.3 | 1 |
| 4 | Low stove | Yes | Bituminous coal | 1020 | 144.3 | 254.0 | – |
| 5 | Low stove | Yes | Bituminous coal | 1050 | 21.7 | 131.0 | – |
| 6 | Low stove | Yes | Bituminous coal | 1290 | 34.0 | 97.4 | – |
| 7 | Low stove | Yes | Bituminous coal | 1260 | 17.7 | 66.1 | – |
| 8 | Low stove | Yes | Bituminous coal | 1200 | 61.6 | 108.2 | 2 |
| 9 | Portable stove | No | Bituminous coal | 1215 | 490.4 | 483.7 | – |
| 10 | Portable stove | No | Anthracite coal | 1215 | 216.9 | 95.2 | – |
| 11 | Firepit | No | Bituminous coal | 1290 | 131.7 | 588.7 | 3 |
| 12 | High stove | Yes | Anthracite coal | 780 | 46.0 | 33.1 | – |
| 13* | Brick stove | No | Anthracite coal | 435 | 269.1 | 72.6 | – |
| 14 | Firepit and portable stove | No | Beehive** | 717 | 104.9 | 122.3 | – |
| 15 | Portable stove | No | Wood | 1052 | 246.2 | 220.9 | 4 |
Notes:
*
sampling occurred during only one day;
**
a beehive is a honeycomb-shaped briquette.