| | | | | | | | | 20 | | | | | | | TSP PM2.5 76. | 91% | | | 60% | 12% | 10% 18% | | VOCs | | | 68% 32% | | | VOCs | | | | PM2.5 | | | | | | | | 0.1 ppm | | | TSP PM2.5 | 76.91% PM2.5 | | | | | | | | | | | | | | | | | | | | | | | | 190 | | | | |