• Analysed station:
PH-2 (latitude: 44.94, longitude: 26.03, altitude: 158.00)

  • Nitrogen Dioxide (NO2) Analysis:

In the analysed period there is a certain time where the amount of NO2 is lower in 2020 than in 2019. The interval is during most of the state of emergency from March 16 to May 14, although not for all of it, at the end, the values starting to become similar, and continuing to be close for a couple of months.

  • Carbon Monoxide (CO) Analysis:

The amount of CO in 2020 is generally smaller than in 2019, but not with very much, the values being already pretty small.

  • Sulfur Dioxide (SO2) Analysis:

Similarly to the CO, there aren’t any big differences through the year, except in November and December where in 2019 there were some spikes in the amount of SO2, although the year 2020 is generally constant.

  • Conclusion:

Therefore, the ground measurements revealed that the COVID-19 pandemic and imposed restrictions caused decrease of atmospheric pollution in Ploiești, the town in Prahova County where station PH-2 is located, but only in the amount of NO2. Compared to Bucharest, the capital of Romania, Ploiești is a small city, and also there was no lockdown, so the fact that there isn’t a very big difference can be explained.