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AIR POLLUTION – MONITORING MODELLING AND HEALTH

air pollution – monitoring, modelling and health - Ademloos

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Urban Air Pollution 33<br />

32<br />

Compare at M A station<br />

32<br />

Compare at D2 st at ion<br />

28<br />

24<br />

Delta O3<br />

Standard deviation O3<br />

28<br />

24<br />

Delta O3<br />

Standard deviation O3<br />

20<br />

20<br />

O3, ppb<br />

16<br />

12<br />

8<br />

O3, ppb<br />

16<br />

12<br />

8<br />

4<br />

4<br />

0<br />

-4<br />

6 12 18 24 6 12 18 24 6 12 18 24<br />

FEB 6 FEB 7 FEB 8<br />

0<br />

-4<br />

6 12 18 24 6 12 18 24 6 12 18 24<br />

FEB 6 FEB 7 FEB 8<br />

32<br />

28<br />

24<br />

Compare at HB stat ion<br />

Delta O3<br />

Standard deviation O3<br />

32<br />

28<br />

24<br />

Compare at M A station<br />

Delta O3<br />

Standard deviation O3<br />

20<br />

20<br />

O3, ppb<br />

16<br />

12<br />

8<br />

4<br />

0<br />

-4<br />

6 12 18 24 6 12 18 24 6 12 18 24<br />

FEB 6 FEB 7 FEB 8<br />

O3, ppb<br />

16<br />

12<br />

8<br />

4<br />

0<br />

-4<br />

6 12 18 2 4 6 12 18 2 4 6 12 18 2 4<br />

FEB 6 FEB 7 FEB 8<br />

32<br />

28<br />

Compare at D2 station<br />

Delta O3<br />

32<br />

28<br />

Compare at HB st ation<br />

Delta O3<br />

24<br />

Standard deviation O3<br />

24<br />

Standard deviation O3<br />

20<br />

20<br />

O3, ppb<br />

16<br />

12<br />

O3, ppb<br />

16<br />

12<br />

8<br />

8<br />

4<br />

4<br />

0<br />

-4<br />

6 12 18 24 6 12 18 24 6 12 18 24<br />

FEB 6 FEB 7 FEB 8<br />

0<br />

-4<br />

6 12 18 24 6 12 18 24 6 12 18 24<br />

FEB 6 FEB 7 FEB 8<br />

Fig. 17. Reduction of O 3 (in ppb) in 2015 (strategy in 2015; Fig .17 (a, b, c)_upper panels) and<br />

in 2020 (strategy in 2020; Fig .17 (d, e, f)_lower panels) from the O 3 concentration in 2006 and<br />

its uncertainties. The results are plotted for the first layer near the ground during the<br />

selected episode (on 6th - 8th Feb) at MA, D2 and HB stations.

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