Current Air Quality
Today
1/6
24
AQI
Fair
The air quality is generally acceptable for most individuals. However, sensitive groups may experience minor to moderate symptoms from long-term exposure.
Based on Current Pollutants
Learn more at
Over the past hour
PM 10
Fair
24
19 µg/m³
Particulate Matter are
inhalable pollutant particles with a diameter less than 10 micrometers.
Particles that are larger than 2.5 micrometers can be deposited in airways, resulting in
health issues. Exposure can result in eye and throat irritation, coughing or difficulty
breathing, and aggravated asthma. More frequent and excessive exposure can result in more
serious health effects.
...more
Particulate Matter are
inhalable pollutant particles with a diameter less than 10 micrometers.
Particles that are larger than 2.5 micrometers can be deposited in airways, resulting in
health issues. Exposure can result in eye and throat irritation, coughing or difficulty
breathing, and aggravated asthma. More frequent and excessive exposure can result in more
serious health effects.
...more
24
19 µg/m³
PM 2.5
Fair
24
6 µg/m³
Fine Particulate Matter are
inhalable pollutant particles with a diameter less than
2.5 micrometers that can enter the lungs and bloodstream, resulting in serious health issues.
The most severe impacts are on the lungs and heart. Exposure can result in coughing or
difficulty breathing, aggravated asthma, and the development of chronic respiratory disease.
...more
Fine Particulate Matter are
inhalable pollutant particles with a diameter less than
2.5 micrometers that can enter the lungs and bloodstream, resulting in serious health issues.
The most severe impacts are on the lungs and heart. Exposure can result in coughing or
difficulty breathing, aggravated asthma, and the development of chronic respiratory disease.
...more
24
6 µg/m³
O 3
Excellent
19
58 µg/m³
Ground-level Ozone can aggravate existing respiratory
diseases and also lead to throat irritation, headaches, and chest pain.
...more
Ground-level Ozone can aggravate existing respiratory
diseases and also lead to throat irritation, headaches, and chest pain.
...more
19
58 µg/m³
NO 2
Excellent
18
9 µg/m³
Breathing in high levels of Nitrogen Dioxide increases the risk of
respiratory problems. Coughing and difficulty breathing are common and
more serious health issues such as respiratory infections can occur with longer exposure.
...more
Breathing in high levels of Nitrogen Dioxide increases the risk of
respiratory problems. Coughing and difficulty breathing are common and
more serious health issues such as respiratory infections can occur with longer exposure.
...more
18
9 µg/m³
View More
View Less
Excellent
0 - 19
The air quality is ideal for most individuals; enjoy your normal outdoor activities.
Fair
20 - 49
The air quality is generally acceptable for most individuals. However, sensitive groups may experience minor to moderate symptoms from long-term exposure.
Poor
50 - 99
The air has reached a high level of pollution and is unhealthy for sensitive groups. Reduce time spent outside if you are feeling symptoms such as difficulty breathing or throat irritation.
Unhealthy
100 - 149
Health effects can be immediately felt by sensitive groups. Healthy individuals may experience difficulty breathing and throat irritation with prolonged exposure. Limit outdoor activity.
Very Unhealthy
150 - 249
Health effects will be immediately felt by sensitive groups and should avoid outdoor activity. Healthy individuals are likely to experience difficulty breathing and throat irritation; consider staying indoors and rescheduling outdoor activities.
Dangerous
250+
Any exposure to the air, even for a few minutes, can lead to serious health effects on everybody. Avoid outdoor activities.
Union City Current Air Quality
Excellent
Dangerous
Excellent
Fair
Poor
Unhealthy
Very Unhealthy
Dangerous
24-Hour Air Quality Forecast
Daily Forecast
Today
1/6
35
AQI
Fair
The air quality is generally acceptable for most individuals. However, sensitive groups may experience minor to moderate symptoms from long-term exposure.
Sunday
1/7
52
AQI
Poor
The air has reached a high level of pollution and is unhealthy for sensitive groups. Reduce time spent outside if you are feeling symptoms such as difficulty breathing or throat irritation.
Monday
1/8
44
AQI
Fair
The air quality is generally acceptable for most individuals. However, sensitive groups may experience minor to moderate symptoms from long-term exposure.
Tuesday
1/9
42
AQI
Fair
The air quality is generally acceptable for most individuals. However, sensitive groups may experience minor to moderate symptoms from long-term exposure.
All raw air quality data and information has been obtained from Plume Labs. Although AccuWeather intends to provide accurate information relating to air quality and forecasting, the data or information may not have been subject to a quality assurance review to determine their accuracy. The information associated with the air quality maps are as real-time as possible and are displayed as soon as practical upon transmission to us, including current index, forecast, daily and hourly air quality data. All data and information is presented only for public benefit and should not be deemed final in any way. All air quality monitoring is subject to equipment and sensor limitations and intermittent fluctuations that may cause invalid or inaccurate readings. All air quality data and information is derived from a separate set of air monitoring data values based on recorded concentrations of the major pollutants for each day. The raw measurements are then converted by Plume Labs into values comprising the Air Quality Index (AQI), using standards and guidelines developed by the Environmental Protection Agency (EPA) and the World Health Organization (WHO), among other scientific studies by Plume Labs. The air quality data and information is subject to change at any time. AccuWeather has no legal liability or responsibility for the accuracy, completeness, or correctness of the air quality data and information, and expressly disclaims any and all damages or losses that may have occurred by you or any third party either directly or indirectly as a result of any information obtained from the air quality data and information. Reliance on any air quality data and information for any advice, including medical advice, is strictly prohibited. AccuWeather hereby disclaims any and all representations and warranties with respect to the air quality data and information, including but not limited to any implied warranties of accuracy, fitness for use, and merchantability. All air quality data and information is further subject to Plume Labs' General Terms and Conditions located here.
https://tutorial.plumelabs.com/post/terms_of_use/
