The Air Quality Index (AQI) was created to relate the levels of different pollutants onto a scale. The higher the AQI value, the greater the health problem.
When pollution levels are elevated, individuals are advised to consider limiting strenuous outdoor physical activity to reduce the risk of adverse health effects, the National Weather Service said.
People who may be particularly sensitive to the effects of elevated levels of pollutants include young children and people with respiratory conditions such as asthma or heart disease.
To see the six levels of the Air Quality Index, click on the second image above.
Looking ahead to July 4th
The four-day weekend will be mostly dry for many, but there is a chance of scattered showers and thunderstorms. But the Fourth of July itself has good news too.
Partly cloudy Saturday with a high temperature of around 80 degrees. Showers are possible overnight, but thunderstorms are not expected, according to the National Weather Service.
The amount of sunlight depends on the amount of haze created by the smoke.
Sunday, July 2 is likely to be the stormiest day of the long weekend, with showers and storms expected anytime from morning to night. Rainfall could be as much as three-quarters of an inch, with stronger storms seeing higher amounts.
Cloud cover will keep temperatures above 70 degrees.
Monday, July 3 will be partly sunny with highs rising to 80 degrees Fahrenheit, with possible showers and storms in the afternoon and early evening.
The current forecast for Tuesday, July 4th is sunny with a temperature in the mid-80s.
Please check back with The Daily Voice for updates.
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