Prevent, Promote, and Protect your Health with the Lake County General Health District
(440) 350-2543
5966 Heisley Rd
Mentor, Ohio 44060

Air Quality Index

The Air Quaility Index (AQI)) was developed by the United States Environmental Protection Agency (USEPA) to generate consistency in reporting air quality throughout the country.

Ohio’s Air Quality Index (AQI), was designed to make it easier to understand air quality from state to state and region to region.

The AQI system places maximum emphasis on protecting the public health. Therefore, the numbers and terms describe the health effects of the various air pollution levels. In addition, cautionary statements will be used when the AQI value exceeds 100. See color chart

The AQI is based on a scale of 0 – 500. Readings below 100 mean the air quality is within the standards. Readings above 100 mean the air is above the standard and is potentially unhealthful. At the 200 level, a first stage alert would be issued by the state. At 300, a second stage alert would be called and at 400, the third stage would be declared.

The AQI is designed to include any of the five main pollutants; suspended particulates, sulfur dioxide, photochemical oxidants, nitrogen dioxide and carbon monoxide. As readings are taken for these pollutants, the daily AQI is given as the highest index value of any of the five. For example, if sulfur oxides and particulates were monitored daily, the pollutant having the higher index reading would determine the index for that day.

Approximately 150 media sources throughout Ohio carry the AQI. If your news source does not report the AQI, you can obtain it by calling your local air pollution control office or local Ohio EPA district office.

Below is a list of all the criteria pollutants monitored by the Lake County General Health District. From the data collected, we calculate a Air Quality Index (AQI). On each of the pages, you can also obtain additional information on each instrument that analyzes the criteria.

Current N.E. Ohio Pollution Levels PM 2.5

Current N.E. Ohio Pollution Levels Ozone

Is today an Air Quality Advisory Day? – NOACA’s website will provide this information under announcements.

Daily Air Quality Index (AQI)

Today’s November 20, 2017 PSI is 1 which is in the GOOD range (see information below)

Yesterday’s highest values (date: November 17, 2017)

Yesterday’s highest ozone value:

Painesville

   – PPB  

Eastlake

   – PPB

Geauga

   – PPB

Yesterday’s highest sulfur dioxide value:

Painesville

        1 PPB  

Eastlake

        1 PPB
highest carbon monoxide value:        0.1 PPM  
Yesterday’s highest PM hourly 2.5 value:         6 ug/m3
Yesterday’s highest PM 2.5,  24 hour average:         4 ug/m3

   The following is the AQI trend for the past two weeks:

DAY

DATE

PSI

Monday

11/13/17

1

Tuesday

11/14/17

1

Wednesday

11/15/17

3

Thursday

11/16/17

4

 

Friday  

11/17/17

1
Monday  

11/20/17

1

Tuesday

11/7/17

 1

Wednesday

11/8/17

Thursday

11/9/17

1

Friday 

11/10/17

1

The above data is raw and is not quality assured.

AQI LEVELS ACCOMPANYING HEALTH EFFECTS/WARNINGS

See Color Chart

 

AQI

Index Values

Health Categories

Cautionary Statements for 8-Hour Ozone

 0 to 50

 Good

None

51 to 100

Moderate

Unusually sensitive people should consider limiting prolonged outdoor exertion.

 101 to 150

Unhealthy for Sensitive Groups

Active children and adults, and people with respiratory disease, such as asthma, should limit prolonged outdoor exertion.

151 to 200

 Unhealthy

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.

201 to 300

Very Unhealthy

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.

301 to 500

Hazardous

Everyone should avoid all outdoor exertion