Health Risk AQHI At Risk Population General Population
Low Risk 1 – 3 Enjoy your usual outdoor activities. Ideal air quality for outdoor activities.
Moderate Risk 4 – 6 Consider reducing or rescheduling strenuous activities outdoors if you are experiencing symptoms. No need to modify your usual outdoor activities unless you experience symptoms.
High Risk 7 – 10 Reduce or reschedule strenuous activities outdoors. Children and the elderly should also take it easy. Consider reducing or rescheduling strenuous activities outdoors if you experience symptoms.
Very High Risk 10+ Avoid strenuous activities outdoors. Children and the elderly should also avoid outdoor physical exertion. Reduce or reschedule strenuous activities outdoors, especially if you experience symptoms.

Health Vulnerability Statement

All communities included in this report are designated as “underserved” by MDEnviroScreen. Notably, Turner Station, Cheverly, Cedar Heights, Curtis Bay, and areas near HCNR, and HU-B are further classified as “overburdened,” meaning they face a cumulative impact of three or more environmental or health stressors.

Critical sensitive population indicators (75th Percentile or higher):

Due to these compounding health disparities and socio-environmental stressors, the reported Air Quality Health Index (AQHI) represents a conservative baseline; the actual risk to residents in the tracts mentioned above is likely higher than the index alone suggests.

MDEnviroScreen Map

Spatial distribution of overburdened communities via MDEnviroScreen.

AQHI Summary for All ARP Grant-funded Modulair Sensors
Sensor Total_Hours Mean_AQHI Median_AQHI Max_AQHI Hours_High_Risk Min_AQHI
MOD-00536 - Cheverly 558 4 4 6 0 2
MOD-00537 - Turner Station North 565 4 4 7 4 2
MOD-00745 - Cedar Heights 736 4 4 6 0 1
MOD-00746 - HCNR 736 4 4 6 0 1
MOD-00747 - Turner Station South 736 4 4 6 0 1
MOD-00748 - Annapolis 734 4 4 6 0 1
MOD-00749 - HU - Beltsville 736 3 3 6 0 1
AQHI Summary at MDE Regulatory Monitors*
Monitor Total_Hours Mean_AQHI Median_AQHI Max_AQHI Hours_High_Risk Min_AQHI
HUB 631 2 2 4 0 1
Essex 687 3 3 5 0 2
Lake_Montebello 620 3 3 6 0 1
Piney_Run 714 3 3 4 0 1
HCNR 647 3 3 6 0 2
*HCNR statistics are a hybrid of regulatory monitor data (PM2.5 & NO2) and sensor data (O3).  
## The highest AQHI value recorded was 7, reached by sensor(s) MOD-00537 - Turner Station North ( 4 h)
Highest AQHI Sensor(s) and Hours at Maximum
Sensor Max_AQHI Hours_at_Max
MOD-00537 - Turner Station North 7 4