Quick Update Guide

This is raw data. It has not been validated and may contain errors.

The data is obtained from automated, continuous instruments; no human has reviewed or checked the accuracy of this data.
The data has been subject to only preliminary automated quality assurance procedures.
Special conditions such as power outages and equipment malfunction can produce data that is invalid.
This data is made available for the purpose of public awareness and should not be used in any medical or other scientific study.
Quality assured data can be obtained by contacting the Missouri Department of Natural Resources Air Pollution Control Program.

Users Guide

All data is recorded using Central Standard Time(CST), not daylight savings time.

The camera page is a quick look at the current pollutant levels of the most common air pollutants.

The camera page is not a complete Air Quality Index Report (AQI) .

The color of the outside columns indicates what the AQI level would be If the the current level of particulate continues for 24-hours, or the current Ozone concentration continues for eight hours.

The concentration units used for ozone are parts per million (PPM)

The concentration units for Particulate matter are micro-grams per cubic meter (µg/m³).

The AQI and its associated health messages are based on long term averages and do not reflect the rapid changes in pollution levels that often occur during the day.

It is hoped that users of the camera page, especially those with existing respiratory and heart problems, may be better able to plan their daily activities by knowing current pollutant concentrations as well as the AQI .

Air Quality Index Levels of Health Concern	Numerical Value	Ozone 8-hour Concentration (2008 standard)	Ozone 8-hour Health Message	Fine Particle 24-hour Concentration	Fine Particle Health Message
Good	0-50	0.000 PPM to 0.059 PPM	Air quality is considered satisfactory, and air pollution poses little or no risk	0.0 µg/m³ to 15.4 µg/m³	Air quality is considered satisfactory, and air pollution poses little or no risk
Moderate	51-100	0.060 PPM to 0.075 PPM	Air quality is a moderate health concern for a very small number of people who are unusually sensitive to air pollution. This group should plan strenuous outside activities when air quality is better	15.5 µg/m³ to 40.4 µg/m³	Air quality is a moderate health concern for a very small number of people who are unusually sensitive to air pollution. This group should plan strenuous outside activities when air quality is better
Unhealthy for Sensitive Groups	101-150	0.076 PPM to 0.095 PPM	People lung disease (including asthma), older adults and children should cut back or reschedule strenuous activities	40.5 µg/m³ to 65.4 µg/m³	People with heart or lung disease (including asthma), older adults and children should cut back or reschedule strenuous activities
Unhealthy	151-200	0.096 PPM to 0.115 PPM.	Everyone cut back or reschedule strenuous outside activities. People with lung disease (including asthma), older adults and children should avoid strenuous outside activities	65.5 µg/m³ to 150.4 µg/m³	Everyone cut back or reschedule strenuous outside activities.People with heart or lung disease (including asthma), older adults and children should avoid strenuous outside activities
Very Unhealthy	201-300	0.116 PPM to 0.374 PPM	Everyone significantly cut back on physical activities. People with heart or lung disease (including asthma), older adults and children avoid all physical activities	150.5 µg/m³ to 350.4 µg/m³	Everyone significantly cut back on physical activities. People with heart or lung disease (including asthma), older adults and children avoid all physical activities
Hazardous	> 400	1-Hour values Greater than 0..505 PPM	Health warnings of emergency conditions. The entire population is more likely to be affected.	Greater than 350.4 µg/m³	Health warnings of emergency conditions. The entire population is more likely to be affected.