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Air Quality, Pollen & Mold Spore Counts

Air Quality Map from AIRNow Air Quality Legend   Pollen Count Map by AccuWeather Pollen Count Legend
Air Quality Index (AQI)
Additional Maps

Value Levels of Health Concern Colors
Range
0 to 50
51 to 100
101 to 150
151 to 200
201 to 300
301 to 500
Color
Green
Yellow
Orange
Red
Purple
Maroon
Air Quality Conditions
Good
Moderate
Unhealthy for Sensitive Groups
Unhealthy
Very Unhealthy
Hazardous


More air quality index data for the state of Maryland can be found on the AIRNow website.

EPA has assigned a specific color to each AQI category to make it easier for people to understand quickly whether air pollution is reaching unhealthy levels in their communities. Each category corresponds to a different level of health concern.
"Good" The AQI value for your community is between 0 and 50. Air quality is considered satisfactory, and air pollution poses little or no risk.
"Moderate" The AQI for your community is between 51 and 100. Air quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people. For example, people who are unusually sensitive to ozone may experience respiratory symptoms.
"Unhealthy for Sensitive Groups" When AQI values are between 101 and 150, members of sensitive groups may experience health effects. This means they are likely to be affected at lower levels than the general public. For example, people with lung disease are at greater risk from exposure to ozone, while people with either lung disease or heart disease are at greater risk from exposure to particle pollution. The general public is not likely to be affected when the AQI is in this range.
"Unhealthy" Everyone may begin to experience health effects when AQI values are between 151 and 200. Members of sensitive groups may experience more serious health effects.
"Very Unhealthy" AQI values between 201 and 300 trigger a health alert, meaning everyone may experience more serious health effects.
"Hazardous" AQI values over 300 trigger health warnings of emergency conditions. The entire population is more likely to be affected.

For more information on air quality and air pollution visit the Environmental Protection Agency (EPA) website.

 

 




  Pollen Count
Overall     Grass     Trees     Ragweed

Value Levels of Pollen Count Colors (Grains/meter3 )
Range
0.
1 to 14.
15 to 89.
90 to 1499.
> 1500.
Color
Blue
Green
Yellow
Orange
Red
Pollen Quantity
None
Low
Moderate
High
Very High



Mold Spore Count  (updated Monday thru Friday only)

Mold Spore Map by The Weather Channel

Value Levels of Mold Spore Count Colors (Grains/meter3) per National Allergy Bureau™
Range
0
1 to 6499
6500 to 12999
13000 to 49999
> 50000
Color
Tan
Low Mold Count Legend 
Medium Mold Count Legend 
High Mold Count Legend 
Very High Mold Count Legend 
Spore Quantity
Absent
Low
Moderate
High
Very High
These levels are based on outdoor exposure to natural occurring spores in the environment. Indoor mold levels will vary from building to building. Information about mold spore as a health hazard can read on the Centers for Disease Control and Prevention (CDC) website.