Why did ozone levels remain high in Rio de Janeiro during the Brazilian truck driver strike?

On May 21st, 2018, Brazilian truck drivers began a 10-day strike to protest high diesel prices. This was Brazil's longest trucker strike, and within a few days, gas stations ran out of fuel, drivers waited in line for hours to fuel their cars, transport was severely affected, and airports began...

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Bibliographic Details
Published in:Atmospheric pollution research 2019-11, Vol.10 (6), p.2018-2029
Main Authors: Dantas, Guilherme, Siciliano, Bruno, Freitas, Letícia, Guedes de Seixas, Eduardo, da Silva, Cleyton M., Arbilla, Graciela
Format: Article
Language:English
Subjects:
Criteria pollutants
Emission reduction
Ozone concentrations
Truck driver strike
VOC-Limited conditions
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Summary:On May 21st, 2018, Brazilian truck drivers began a 10-day strike to protest high diesel prices. This was Brazil's longest trucker strike, and within a few days, gas stations ran out of fuel, drivers waited in line for hours to fuel their cars, transport was severely affected, and airports began cancelling flights. In Rio de Janeiro, the second largest city in Brazil, Air Quality Indexes (AQI) during the strike showed that the high ozone concentrations, determined in three monitoring stations (Irajá, Bangu and Campo Grande), led to “Moderate” and “Unhealthy” AQI in spite of reduced primary pollutant concentrations: nitrogen oxides (NOx = NO + NO2), particulate matter with a diameter 
ISSN:1309-1042
1309-1042
DOI:10.1016/j.apr.2019.09.010