Prediction of Air Quality Index Based on Wavelet Transform Combination Model

2019 ◽  
Author(s):  
Yiwendi Zhu ◽  
Xiaofeng Zhou
Keyword(s):  
Wavelet Transform ◽  
Air Quality ◽  
Quality Index ◽  
Air Quality Index ◽  
Combination Model

scholarly journals Investigating the Co-movement Nexus Between Air Quality, Temperature, and COVID-19 in California: Implications for Public Health

2021 ◽  
Vol 9 ◽  
Author(s):  
Zeeshan Fareed ◽  
Muhammad Farhan Bashir ◽  
Bilal ◽  
Sultan Salem
Keyword(s):  
Wavelet Transform ◽  
Air Quality ◽  
Quality Index ◽  
Environmental Pollutants ◽  
Air Quality Index ◽  
Daily Temperature ◽  
Policy Implications ◽  
Wavelet Coherence ◽  
Average Daily Temperature ◽  
Time Frequency

This research aims to look at the link between environmental pollutants and the coronavirus disease (COVID-19) outbreak in California. To illustrate the COVID-19 outbreak, weather, and environmental pollution, we used daily confirmed cases of COVID-19 patients, average daily temperature, and air quality Index, respectively. To evaluate the data from March 1 to May 24, 2020, we used continuous wavelet transform and then applied partial wavelet coherence (PWC), wavelet transform coherence (WTC), and multiple wavelet coherence (MWC). Empirical estimates disclose a significant association between these series at different time-frequency spaces. The COVID-19 outbreak in California and average daily temperature show a negative (out phase) coherence. Similarly, the air quality index and COVID-19 also show a negative association circle during the second week of the observed period. Our findings will serve as policy implications for state and health officials and regulators to combat the COVID-19 outbreak.

A Study on Air Quality Index

2019 ◽  
Vol 7 (3) ◽  
pp. 961-966
Author(s):  
Harshita Raj ◽  
Suhasini Vijaykumar
Keyword(s):  
Air Quality ◽  
Quality Index ◽  
Air Quality Index

scholarly journals Asymmetric nexus between air quality index and nationwide lockdown for COVID-19 pandemic in a part of Kolkata metropolitan, India

Urban Climate ◽  
2021 ◽  
Vol 36 ◽  
pp. 100789
Author(s):  
Niladri Das ◽  
Subhasish Sutradhar ◽  
Ranajit Ghosh ◽  
Prolay Mondal
Keyword(s):  
Air Quality ◽  
Quality Index ◽  
Air Quality Index

scholarly journals Analysis of Air Quality Index Distribution of PM10 and PM2.5 Concentrations in Ambient Air of Al-Hillah City, Iraq

2021 ◽  
Vol 1058 (1) ◽  
pp. 012014
Author(s):  
Ruqayah Ali Grmasha ◽  
Shahla N. A. Al-Azzawi ◽  
Osamah J. Al-sareji ◽  
Talal Alardhi ◽  
Mawada Abdellatif ◽  
...  
Keyword(s):  
Air Quality ◽  
Quality Index ◽  
Ambient Air ◽  
Air Quality Index ◽  
Pm10 And Pm2.5 ◽  
Index Distribution
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