Keyphrases
COVID-19 Lockdown
80%
Air Quality
77%
Particulate Matter 2.5 (PM2.5)
55%
Air Pollution
53%
Lockdown
45%
Machine Learning
42%
China
36%
Air Quality Management
36%
Synthetic Control Method
36%
Augmented Synthetic Control Method
27%
Clean Air Policy
27%
Surface Air
22%
PM2.5 Concentration
22%
PM Sources
18%
Policy Intervention
18%
Quantifying Impact
18%
Haze Pollution
18%
Augmented Synthetic Control
18%
Winter Heating
18%
Megacity
18%
Eastern China
18%
Atmospheric Fine Particles
18%
Spring Festival
18%
COVID-19 Pandemic
18%
Wuhan
18%
Quality Estimation
18%
Expected Change
18%
Chinese Cities
18%
Haze Episode
18%
Explainable Machine Learning
18%
Observational Data
18%
Birmingham
18%
Air Pollution Control
18%
Clean Air Zone
18%
Weather Normalization
18%
Causal Inference
18%
Machine Learning Control
18%
Quality Benefit
18%
Policy Evaluation
18%
Policy Impact
18%
Emission Change
13%
Air Pollutant Emissions
13%
Air Pollutants
12%
Weather Conditions
12%
Primary Emission
12%
NO2 Concentration
11%
Machine Learning Techniques
11%
Policy Implementation
11%
Meteorology
10%
Clean Heating Policy
9%
Earth and Planetary Sciences
Machine Learning
100%
Air Quality
84%
Particular Matter 2.5
75%
Nitrogen Dioxide
72%
Air Pollution
68%
COVID-19 Lockdown
62%
China
57%
Emissions
42%
Approach Control
36%
Air Quality Management
30%
Air Pollutant
30%
Atmospherics
24%
Weather Condition
21%
Megacity
18%
London
18%
Pollutant Emission
15%
California
9%
Oxidant
9%
Environmental Risk
9%
Air Quality Impact
9%
Photochemical Reaction
6%
Fine Particulate Matter
6%
Decoupling
6%
Chemical Transport
6%
Meteorological Factors
6%
Emission Inventory
6%
Policy Analysis
6%
Pyrotechnics
6%