| Province Invited for A Chat | AQI Changes One Quarter before or after ((t ? 1)-(t + 1))/(t − 1) | AQI Changes Two Quarters before or after ((t − 2)-(t + 2))/(t − 2) | Matching Province | AQI Changes One Quarter before or after ((t ? 1)-(t + 1))/(t − 1) | AQI Changes Two Quarters before or after ((t − 2)-(t + 2))/(t − 2) |
| Anhui Province | 16.72% | 3.55% | Zhejiang Province | 5.22% | 6.81% |
| Guizhou Province | −46.00% | −28.64% | Xinjiang Uygur Autonomous Region | −18.62% | −17.02% |
| Hebei Province | 27.36% | 20.16% | Shanghai | −9.93% | −12.88% |
| Henan Province | −79.27% | −35.23% | Inner Mongolia Autonomous Region | −15.36% | 0.44% |
| Heilongjiang Province | 10.70% | 2.44% | Ningxia Hui Autonomous Region | −9.62% | −17.49% |
| Hunan Province | −42.16% | −32.31% | Shaanxi Province | −49.31% | −31.14% |
| Jilin Province | −53.90% | −36.60% | Chongqing | −58.53% | −30.59% |
| Jiangsu Province | 11.20% | 8.31% | Guangdong Province | −20.29% | −1.53% |
| Liaoning Province | −4.19% | −7.06% | Jiangxi Province | 1.61% | −5.30% |
| Shandong Province | 16.38% | 13.39% | Hubei Province | 28.85% | 17.22% |
| Shanxi Province | 29.57% | 16.03% | Tianjin | 38.94% | 23.82% |
| Sichuan Province | 10.04% | 19.96% | Fujian Province | 26.53% | 23.64% |
| Yunnan Province | −3.08% | −11.25% | Hainan Province | 3.38% | −4.45% |