The Louisville Metro Air
Pollution Control District
issues an AIR QUALITY INDEX 4 times daily during
the weekdays. The Air Quality Index provides the
current index, the elevated pollutant, the
current category, and a short term forecast.
Latest air quality data and forecasts
Information from the KAIRE Network
We often hear a
lot about the depletion of the ozone layer in
the atmosphere. This kind of ozone protects us
from harmful radiation. Stratospheric ozone is
good, but ground-level ozone is harmful.
When people think of ground-level ozone, they usually picture a thick layer of smog over Los Angeles. They don't usually think of a Midwest summer day, typically hazy, sunny and hot.
WHAT EXACTLY IS GROUND-LEVEL OZONE?
ozone is formed by a chemical reaction between
volatile organic compounds (VOCs) and oxides of
nitrogen in the presence of sunlight and warm
temperatures. The primary source of these are
automobiles and industrial emissions. High ozone
levels pose significant health risks to the
elderly and young children, but even healthy
adults may be affected. Here in Kentuckiana,
ground-level ozone is a particular problem
during the afternoons and early evenings between
June and September.
Most of the pollutants that form ozone come from cars. Large factories account for another portion of the emissions. Small businesses such as printing plants, service stations, and auto body shops, and people using lawn mowers, paints, and cleaning solvents account for another portion of the emissions.
WHY SHOULD YOU CARE ABOUT THE AIR YOU BREATHE?
ozone directly impacts our health and our
economy. When ozone is breathed into the body,
it reacts with the lung tissue. It can harm
breathing passages, making it more difficult for
the lungs to work. It also can cause eye and
throat irritation and cause a greater
susceptibility to infection.
If Kentuckiana continues to exceed federal standards, numerous costly restrictions - which will affect businesses and private citizens alike - will be required in our area. By making a few simple changes in our daily habits, we can maintain healthy air and a healthy economy.
When weather forecasts show favorable conditions for high ozone levels, the Kentuckiana Ozone Prevention Coalition will issue an Ozone Action Day advisory asking you to do your share for cleaner air.
YOUR GUIDE TO THE AIR QUALITY INDEX
|CATEGORY||AQI||COLOR CODE||HEALTH STATEMENTS|
|Good||1 - 50||Green||No health impacts are expected when air quality is in this range.|
|Moderate||51-100||Yellow||Unusually sensitive people should consider limiting prolonged outdoor exertion.|
|Unhealthy for Sensitive Groups||101-150||Orange||Active children and adults, and people with respiratory disease, such as asthma, should limit prolonged outdoor exertion.|
|Unhealthful||151 - 200||Red||Active children and adults, and people with respiratory disease, such as asthma, should avoid prolonged outdoor exertion; everyone else, especially children, should limit prolonged outdoor exertion.|
|Very Unhealthy||201-300||Maroon||Active children and adults, and people with respiratory disease, such as asthma, should avoid all outdoor exertion; everyone else, especially children, should limit outdoor exertion.|
DO YOUR SHARE FOR CLEANER AIR
FOR MORE INFORMATION: