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Decrease of mobility, electricity demand, and NO2 emissions on COVID-19 times and their feedback on prevention

Asiel N Corpus-Mendoza1, Hector S Ruiz-Segoviano2, Sergio F Rodríguez-Contreras2

  • 1Instituto de Energías Renovables, Universidad Nacional Autónoma de México, Privada Xochicalco S/N, 62580 Temixco, Mexico; CONACYT, Universidad Nacional Autónoma de México, Privada Xochicalco S/N, 62580 Temixco, Mexico.

The Science of the Total Environment
|November 7, 2020
PubMed
Summary

The COVID-19 pandemic led to reduced urban mobility and electricity use, improving air quality globally. Latin American countries effectively delayed virus spread with early prevention measures compared to European nations.

Keywords:
Air qualityElectrical energyMobility trendsPandemic

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Area of Science:

  • Environmental Science
  • Epidemiology
  • Urban Planning

Background:

  • The COVID-19 pandemic significantly altered global human activities in 2020.
  • Prevention measures against COVID-19 resulted in decreased urban mobility and electricity demand worldwide.
  • These changes positively impacted urban air quality, with notable reductions in nitrogen dioxide (NO2) emissions.

Purpose of the Study:

  • To analyze the impact of COVID-19 prevention measures on urban mobility, electricity demand, and air quality.
  • To evaluate the effectiveness of early prevention strategies implemented by Latin American countries in delaying the spread of COVID-19.
  • To provide insights for future global event preparedness.

Main Methods:

  • Comparative analysis of urban mobility, electricity demand, and NO2 emission data.
  • Correlation of environmental changes with COVID-19 incidence curves.
  • Assessment of the timing and impact of prevention measures in Latin American versus European countries.

Main Results:

  • Significant decreases observed globally in mobility (up to 90%), electricity demand (up to 40%), and NO2 emissions (up to 70%).
  • Latin American countries demonstrated success in delaying widespread COVID-19 transmission through proactive implementation of preventive measures.
  • Early intervention correlated with a slower initial growth phase of COVID-19 cases.

Conclusions:

  • COVID-19 prevention measures have demonstrable positive effects on urban air quality.
  • Timely execution of public health interventions is crucial for managing pandemics.
  • Latin America's early response offers a valuable model for mitigating the impact of global health crises.