TYB
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>What monitoring station where?
PEDARA, SICILIA, ITALIA at coordinates 37.6217, 15.0458
GQ GMC 300 counter with SBM-20 tube, indoor station
https://radmon.org/index.php
So using the wind map you can do many things including viewing forecasted and historic conditions. The altitude settings in hPa are a bit of a bother. But there is a conversion tool here that will let you see what the altitude in feet is.
http://www.csgnetwork.com/pressurealtcalc.html
70 hPa = 25,517.6 feet in altitude
10 hPa = 27,363.5 feet in altitude
2020 Beirut explosions
Date 4 August 2020
Time 18:08:18 EEST (15:08:18 UTC) (second explosion)
https://en.wikipedia.org/wiki/2020_Beirut_explosions
In the first two images I have selected the data 8 minutes before the big explosion.
In the second two images I have selected the data for 3 hours later.
As you can clearly see, wind direction at 27,364 feet would blow fallout almost directly at the monitoring station in Pedara, Italy. The wind speeds at that altitude vary from the low 90s to low 80s in km/h along the route.
https://earth.nullschool.net/