Daily AQI report

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For Tuesday May 09, 2023

The category accuracy of the next-day forecast was 94% (16/17 sites)
for PM2.5 and 100% (14/14 sites) for Ozone.

View this weeks complete modeling performance at
AQI-Watch.

MPCA forecast vs Monitoring results

PM2.5 results in ug/m3

Site	Monitored	MPCA
Marshall	11.4	4.8
Fargo	10.8	8.4
St Michael	9.4	9.6
HC Andersen	8.8	13.1
St Cloud	8.9	5.8
Shakopee	8.5	10.3
Rochester	7.2	8.4
Duluth WD	5.2	5.3
Winona	5	9.6
Detroit Lakes	4.3	2.9
Virginia	4.2	4.1
Brainerd	4.1	4.3
Ely	3.5	3.6
Fond Du Lac	3.1	1.9
Leech Lake	2.5	6
Grand Portage	0.8	1.9
Red Lake	-1	3.6

Ozone results in ppb

Site	Monitored	MPCA
Rochester	49	52.9
Winona	49	46.4
Cedar Creek	48	51.8
Brainerd	46	45.4
Detroit Lakes	46	43.2
Marshall	46	51.8
St Cloud	46	48.6
Ely	45	46.4
Mille Lacs	45	44.3
Shakopee	45	50.8
Fargo	43	37.8
MSP	39	43.2
Fond Du Lac	36	41
Duluth WD	35	42.1

Yesterday's model performance

PM2.5

Model	Error ug/m3	CAT accuracy %	Yellow accuracy %	Bullseyes %	On target %
MPCA Team	2.2	94		65	94

Ozone

Model	Error ppb	CAT accuracy %	Yellow accuracy %	Bullseyes %	On target %
MPCA Team	3.8	100		64	100

Overall model performance for next-day forecasts

PM2.5

Model	Error ugm3	On target %	Bullseyes %	Cat accuracy %	Yellow accuracy %	Forecasts
MPCA Team	2.1	92	70	93	16	262

Ozone

Model	Error ppb	On target %	Bullseyes %	Cat accuracy %	Yellow accuracy %	Forecasts
MPCA Team	5.9	83	50	92	17	165

Attention: @DLBro @DDwx @Mtaraldsen @MPCAaqi @ncwitcraft-mpca @dKvale