Compared to Distribution

an indicator guage with the arrow in the green the value is in the best half of communities.

an indicator guage with the arrow in the yellow the value is in the 2nd worst quarter of communities.

an indicator guage with the arrow in the red the value is in the worst quarter of communities.

Compared to Target

green circle with white tick inside it meets target; red circle with white cross inside it does not meet target.

Compared to a Single Value

green diamond with downward arrow inside it lower than the comparison value; red diamond with downward arrow inside it higher than the comparison value; blue diamond with downward arrow inside it not statistically different from comparison value.

Trend

green square outline with upward trending arrow inside it green square outline with downward trending arrow inside it non-significant change over time; green square with upward trending arrow inside it green square with downward trending arrow inside it significant change over time; blue square with equals sign no change over time.

Compared to Prior Value

green triangle with upward trending arrow inside it higher than the previous measurement period; green triangle with downward trending arrow inside it lower than the previous measurement period; blue equals sign no statistically different change from previous measurement period.

green chart bars Significantly better than the overall value

red chart bars Significantly worse than the overall value

light blue chart bars No significant difference with the overall value

gray chart bars No data on significance available

Annual Average PM2.5 Concentration

Measurement Period: 2022

Fine particulate matter (PM2.5) consists of a mixture of solids and liquid droplets so small they are only visible with an electron microscope. These particles can be inhaled and may contain hundreds of different chemicals - some are released into the air directly, while others form when they react with other pollutants in the atmosphere.

Children, older adults, and people with chronic conditions, such as asthma, lung disease, or heart disease, are particularly susceptible to the effects of fine particulate matter.

Why is this important?

The concentration of PM2.5 in the atmosphere is an important measure of air quality. Tracking air quality is crucial to ensuring sensitive populations can take adequate measures to protect their health.

More...

County: Allegheny

8.5

ug/ m^3

Source: Allegheny County Health Department Air Quality Program
Measurement period: 2022
Maintained by: Allegheny County Health Department
Last update: January 2024

Compared to See the Legend