Research Article
Effect of NPAH Exposure on Lung Function of Children in Indoor Coal Combustion Environment
Table 2
Rotated component matrix of NPAHs in the particulate phases.
| Principal components | Heating season | Nonheating season | 1 | 2 | 1 | 2 | 3 |
| 1N-NAP | 0.145 | -0.689 | 0.951 | 0.008 | 0.084 | 2N-NAP | 0.184 | -0.758 | 0.959 | 0.044 | 0.153 | 5N-ACE | 0.790 | 0.431 | — | — | — | 2N-FLO | 0.960 | -0.070 | 0.981 | 0.075 | 0.007 | 9N-ANT | 0.522 | 0.780 | 0.916 | 0.309 | 0.194 | 9N-PHE | 0.953 | 0.108 | 0.977 | 0.072 | -0.058 | 3N-PHE | 0.986 | 0.124 | 0.235 | 0.574 | -0.383 | 2+3N-FLA | 0.429 | 0.617 | 0.251 | 0.902 | 0.091 | 1N-PYR | 0.516 | 0.735 | 0.197 | 0.015 | 0.927 | 7N-BaA | 0.551 | 0.748 | -0.158 | 0.934 | 0.040 | 6N-CHR | 0.894 | 0.109 | — | — | — | 6N-BaP | 0.145 | -0.689 | — | — | — | Estimated sources | Coal | Diesel and biomass | Coal | Biomass | Diesel | Variance (%) | 58.2 | 20.7 | 55.4 | 21.8 | 11.3 |
|
|