Table 3.
Average values for the emission of pollutants produced by traffic activity for March-April-May (M-A-M) 2017–2019 and 2020 and average relative changes of emissions produced by traffic activity between both periods.
|
Average emission (March-April-May 2017–2019 and 2020) | |||||
|---|---|---|---|---|---|
| Pollutant | A: Daily Mean M-A-M 2017–2019 |
B: Daily Mean M-A-M 2020 |
C: Daily Mean March 2020 |
D: Daily Mean April 2020 |
E: Daily Mean May 2020 |
| PM2.5 (t/d) | 1.4 | 0.5 | 0.8 | 0.4 | 0.5 |
| NOx (t/d) | 76 | 30 | 44 | 20 | 25 |
| CO (t/d) | 86 | 28 | 40 | 18 | 24 |
| CO2 (kt/d) | 28 | 9.9 | 15 | 6.3 | 8.8 |
| Average relative changes of emissions (March-April-May 2017–2019 and 2020) | |||||
| Pollutant | Relative change (B-A)/A % |
Relative change (C-A)/A % |
Relative change (D-A)/A % |
Relative change (E-A)/A % |
|
| PM2.5 | −62% | −44% | −75% | −68% | |
| NOx | −61% | −42% | −74% | −66% | |
| CO | −68% | −53% | −80% | −72% | |
| CO2 | −47% | −47% | −77% | −68% | |