USA:New York/Holtsville Air Pollution: Real-time Air Quality Index (AQI)

Usa:new York/holtsville
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USA:New York/Holtsville AQI: USA:New York/Holtsville Real-time Air Quality Index (AQI).
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no data
Updated on Wed. 9:00
temperature: -°C
currentpast 2 daysminmax
PM2.5 AQI
999USA:New York/Holtsville, USA PM25 (fine particulate matter) measured by : • China National Urban air quality real-time publishing platform (全国城市空气质量实时发布平台) • Air Now - US EPA. Values are converted to the US EPA AQI standard.999999
O3 AQI
500USA:New York/Holtsville, USA O3 (ozone) measured by : • China National Urban air quality real-time publishing platform (全国城市空气质量实时发布平台) • Air Now - US EPA. Values are converted to the US EPA AQI standard.403500
Weather Information
Temp.
6USA:New York/Holtsville, USA t (temp.) measured by Citizen Weather Observer Program (CWOP/APRS).217
Pressure
1015USA:New York/Holtsville, USA p (pressure:) measured by Citizen Weather Observer Program (CWOP/APRS).10061015
Humidity
45USA:New York/Holtsville, USA h (humidity) measured by Citizen Weather Observer Program (CWOP/APRS).1976
Wind
1USA:New York/Holtsville, USA w (wind) measured by Citizen Weather Observer Program (CWOP/APRS).14
MarkerMarkerMarker
map © OpenStreetMap contributors

Air Quality Forecast
WED 12
11°C
4°C
THU 13
7°C
3°C
FRI 14
5°C
3°C
SAT 15
8°C
5°C
SUN 16
11°C
8°C
PM2.5
O3
Wednesday 12Thursday 13Friday 14Saturday 15Sunday 16
hour
036912151821036912151821036912151821036912151821036912151821036
Wind Speed (m/s)
57654665245566766776655443433333455810111112151618











































Temp.
11°11°9°8°7°6°4°4°5°6°5°4°3°3°3°4°4°4°4°4°3°3°3°4°6°6°6°5°5°6°6°7°9°9°8°9°10°10°10°11°11°11°12°
relative humidity
44496673776277616260587675758078798285889188888685858893979092898796999999999999989898
barometric pressure
1009100710081007100910111014101710161015101710191018101910191020101910191019102010201020102110221021102010201020101910191018101910181015101510151014101310141013101210101009
total precipitation
0.10.30.10.10.10.1
UVI:
5


19:11 ~ 6:55
UVI:
4


19:09 ~ 6:56
UVI:
5


19:08 ~ 6:57
UVI:
4


19:06 ~ 6:58
UVI:
3


19:05 ~ 6:59
Forecast plotted using timezone +08:00
Latest forecast updates:
Wind: 5 hours ago [Mar 12, 2025 10:36 AM]
fine particulate matter: 19 hours ago [Mar 11, 2025 8:33 PM]
ozone: 18 hours ago [Mar 11, 2025 8:38 PM]
click to view the detailed forecast

Air Quality Data provided by: the China National Urban air quality real-time publishing platform (全国城市空气质量实时发布平台) (106.37.208.233:20035) and Air Now - US EPA (airnow.gov)

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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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