PM10 FORECAST FOR SANTIAGO DE CHILE

The 24hr mean plots are used to see if an episode must be declared or not. Vertical black lines are the time where to see if an episode must be declared or not. Red lines are the actual thresholds to declare episodes (see CONAMA webpage):

·        Alert: 195 to 240 µgr/m3

·        Pre-Emergency: 240 to 330 µgr/m3

·        Emergency: over 330 µgr/m3

Green lines are thresholds to declare episodes as a preventive measure as has been done by the Authority for the last few years. Thresholds were obtained making the model declare the same amount of episodes as the authority for a period in year 2008. These thresholds are:

·        Alert: 150 to 210 µgr/m3

·        Pre-Emergency: 210 µgr/m3 and over.

Summary Forecast

Using standard thresholds:

Forecast for 1st day of forecast is

alert

Forecast for the second day is

emergency

 

Using preventive measures:

Forecast for 1st day of forecast is

no_episode

Forecast for the second day is

pre_emergency

 

Plots

PM10_24hmean_PUDAHUELPM10_24hmean_CERRO_NAVIAimage012PM10_1hr_CERRO_NAVIAT_PUDAHUEL

Links

·        PM2.5 forecast for Santiago de Chile

·        Air quality indexes in Santiago de Chile

·        Ventilation factor from DMC (used to forecast episodes by the Authority)

·        Santiago weather forecast from DMC

·        UNAB forecasts