Sint-michiel-liber Air Pollution: Real-time Air Quality Index (AQI)


San Juan AQI: San Juan Real-time Air Quality Index (AQI).
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no data
Updated on Tuesday 12:00
temperature: -°C
currentpast 2 daysminmax
PM2.5 AQI
30San Juan, Puerto Rico PM25 (fine particulate matter)  measured by :
 • Junta de Calidad Ambiental (JCA) de Puerto Rico
 • Air Now - US EPA.
Values are converted to the US EPA AQI standard.542
Weather Information
Temp.
30San Juan, Puerto Rico  t (temp.)  measured by Citizen Weather Observer Program (CWOP/APRS).2030
Pressure
1012San Juan, Puerto Rico  p (pressure:)  measured by Citizen Weather Observer Program (CWOP/APRS).10101015
Humidity
72San Juan, Puerto Rico  h (humidity)  measured by Citizen Weather Observer Program (CWOP/APRS).7299
Wind
1San Juan, Puerto Rico  w (wind)  measured by Citizen Weather Observer Program (CWOP/APRS).07
Marker
map © OpenStreetMap contributors

Air Quality Forecast
TUE 7
28°C
23°C
WED 8
28°C
23°C
THU 9
27°C
21°C
FRI 10
25°C
22°C
SAT 11
26°C
23°C
PM2.5
O3
Tuesday 7Wednesday 8Thursday 9Friday 10Saturday 11
hour
0369121518210369121518210369121518210369121518210369121518
Wind Speed (m/s)
544346543334575332223420111346666545665







































Temp.
24°24°24°25°28°27°25°24°24°23°23°26°28°27°25°24°23°22°21°25°27°26°24°23°23°22°23°24°25°24°24°23°23°23°23°24°26°25°23°
relative humidity
817982786774838687898976677178818284867164656974778282807880787978767473677073
barometric pressure
101610141015101710151013101510161015101410161017101510131014101610141013101410161014101310141015101410131014101610151014101510171016101510161017101510141015
total precipitation
0.10.10.10.20.30.20.30.20.30.10.10.10.10.10.30.71.50.40.60.20.30.10.10.1
UVI:
6


6:59 ~ 18:03
UVI:
7


6:59 ~ 18:04
UVI:
6


6:59 ~ 18:05
UVI:
5


7:00 ~ 18:05
UVI:
7


7:00 ~ 18:06
Forecast plotted using timezone -04:00

Air Quality Data provided by: the Junta de Calidad Ambiental (JCA) de Puerto Rico (jca.pr.gov) and Air Now - US EPA (airnow.gov)

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https://aqicn.org/snapshot/puerto-rico/san-juan/20250107-12/?cs
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This air quality monitoring station real-time data can be programmatically accessed using this API url: (For more information, check the API page:aqicn.org/api/ )

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About the Air Quality and Pollution Measurement:

About the Air Quality Levels

AQIAir Pollution LevelHealth ImplicationsCautionary Statement (for PM2.5)
0 - 50GoodAir quality is considered satisfactory, and air pollution poses little or no riskNone
51 -100ModerateAir quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.Active children and adults, and people with respiratory disease, such as asthma, should limit prolonged outdoor exertion.
101-150Unhealthy for Sensitive GroupsMembers of sensitive groups may experience health effects. The general public is not likely to be affected.Active children and adults, and people with respiratory disease, such as asthma, should limit prolonged outdoor exertion.
151-200UnhealthyEveryone may begin to experience health effects; members of sensitive groups may experience more serious health effectsActive 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
201-300Very UnhealthyHealth warnings of emergency conditions. The entire population is more likely to be affected.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.
300+HazardousHealth alert: everyone may experience more serious health effectsEveryone should avoid all outdoor exertion

To know more about Air Quality and Pollution, check the wikipedia Air Quality topic or the airnow guide to Air Quality and Your Health.

For very useful health advices of Beijing Doctor Richard Saint Cyr MD, check www.myhealthbeijing.com blog.


Usage Notice: All the Air Quality data are unvalidated at the time of publication, and due to quality assurance these data may be amended, without notice, at any time. The World Air Quality Index project has exercised all reasonable skill and care in compiling the contents of this information and under no circumstances will the World Air Quality Index project team or its agents be liable in contract, tort or otherwise for any loss, injury or damage arising directly or indirectly from the supply of this data.



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