Table 3.
Percentage of overlap and number of the days in the overlap for all indicators at the seven sites across the Pearl River Delta
| Site | HO2/OH | H2O2/HNO3 | H2O2/NOy | H2O2/NOz | O3/HNO3 | O3/NOy | O3/NOz |
|---|---|---|---|---|---|---|---|
| Jiangmen | 2.7% (5) | 49.9% (28) | 36.3% (23) | 48.9% (25) | 66.9% (29) | 98.6% (28) | 37.5% (21) |
| Foshan | 0.3% (2) | 24.5% (29) | 30.3% (19) | 55.0% (25) | 46.6% (28) | 100% (30) | 87.6% (26) |
| Guangzhou | 56.3% (13) | 100% (30) | 88.6% (26) | 100% (30) | 99.2% (29) | 97.1% (29) | 49.1% (24) |
| Zhuhai | 34.8% (20) | 100% (30) | 100% (30) | 65.6% (29) | 38.2% (28) | 89.3% (27) | 47.7% (26) |
| Shenzhen | 0% (0) | 93.7% (23) | 60.9% (12) | 94.9% (25) | 85.5% (18) | 60.5% (8) | 86.4% (20) |
| Zhongshan | 10.4% (5) | 15.9% (23) | 64.3% (25) | 52.4% (25) | 4.0% (15) | 100% (30) | 10.5% (15) |
| Huizhou | 0% (0) | 65.7% (28) | 24.5% (11) | 7.5% (11) | 43.0% (29) | 99.3% (29) | 6.7% (6) |