Hourly Air Quality and Pollution Forecast
Forecasting PM2.5 and Ozone AQI

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Air Quality Forecasting - also referred as 'Atmospheric Dispersion Modeling' (wikipedia) is the art of simulating how air pollutants (eg PM2.5 or Ozone) disperse is the ambient atmosphere. The result of the simulation gives the ambient concentration for each air pollutants, from which the Air Quality Index can be calculated.

There are dozens of dispersion models and many universities and institutions around the world are running one or several of them for different regions (eg Europe, Continental US, Asia ...). Below is a non-exhaustive and selected list of few models which are being used for providing Air Quality forecast on the "World Air Quality Index" project.

Cooperation needed!
Help is needed for keeping the world-wide Air Quality forecast model inventory up-to-date.

  • Do you know any model not listed below but for which gridded data is available?
  • Do you know better accuracy analysis solutions which should be used here?
  • Have you done a similar research and you would like to publish it here?

    If yes, drop us a message from the contribute page and we will contact you asap!
  • Atmospheric Models

    You can click on any of the forecast map to see the real-time forecast animation, as well as the model efficiency analysis.

    Spectral Radiation-Transport Model for Aerosol Species
    SPRINTARS East Asia
    Spectral Radiation-Transport Model for Aerosol Species
    MPIM China
    Max Planck Institut fur Meteorologie
    SILAM Asia
    System for Integrated modeLling of Atmospheric coMposition
    CAMS Europe
    Copernicus Atmosphere Monitoring Service NRT
    EMEP Europe
    European Monitoring and Evaluation Program
    CAMS World
    Copernicus Atmosphere Monitoring Service NRT
    SILAM World
    System for Integrated modeLling of Atmospheric coMposition
    NOAA NEMS GFS Aerosol Component
    Global Forecast System
    Air Quality Model (AQM) Product
    Barcelona Supercomputing Center DREAM8b


    Please note that all above analysis are done on the World Air Quality Index (WAQI) project own budget.
    We did not receive any subsidies from any of the intuitions publishing Air Quality forecast models.

    Detailled City Air Quality Forecast

    Detailled Air Quality Forecast is available for more than 600 cities:
    Or just pick any of those cities: 北京, 上海, 成都, 沈阳, 深圳, 广州, 青岛, 西安, 天津, 埼玉, 京都, 大阪, 서울, 부산, 波哥大, 德里, 雅加达, Ulaanbaatar, 河内, 金奈, 加尔各答, 孟买, 海得拉巴, 圣地亚哥, 利马, 圣保罗, 基多, 新加坡, Kuala-lumpur, 怡保, Perai, 美里, 纽约, Seattle, 芝加哥, 波士顿, Atlanta.


    This forecasting model, and all AQFS which it is based on, are research products intended to provide information related to Air Quality forecast. All reasonable measures have been taken to ensure its quality and accuracy. However:
    • We do not make warranty, express or implied, nor assume any legal liability or responsibility for the accuracy, correctness, completeness of the information.
    • We do not assume any legal liability or responsibility for any damage or loss that may directly or indirectly result from any information contained on this website or any actions taken as a result of the content of this website;
    • We may change, delete, add to, or otherwise amend information contained on this website without notice

    For more information about the underlying concepts of Air Quality forecasting (or Atmospheric Dispertion Modeling), check the article on a visual study of wind impact of PM2.5 concentration.

    Air Quality Forecastign Model Sources

    The above prediction is based on composite meta model, computed using several Air Quality Forecasting Systems (AQFS): The above map is based on the PM2.5 surface level modeling, and colors are following the US EPA AQI standard.


    本网站采用的污染指数和颜色与EPA是完全相同的。 EPA的指数可以从 AirNow上查到

    空气质量指数 空气质量指数级别(状况)及表示颜色 对健康影响情况 建议采取的措施
    0 - 50 一级(优) 空气质量令人满意,基本无空气污染 各类人群可正常活动
    51 -100 二级(良) 空气质量可接受,但某些污染物可能对极少数异常敏感人群健康有较弱影响 极少数异常敏感人群应减少户外活动
    101-150 三级(轻度污染) 易感人群症状有轻度加剧,健康人群出现刺激症状 儿童、老年人及心脏病、呼吸系统疾病患者应减少长时间、高强度的户外锻炼
    151-200 四级(中度污染) 进一步加剧易感人群症状,可能对健康人群心脏、呼吸系统有影响 儿童、老年人及心脏病、呼吸系统疾病患者避免长时间、高强度的户外锻炼,一般人群适量减少户外运动
    201-300 五级(重度污染) 心脏病和肺病患者症状显著加剧,运动耐受力降低,健康人群普遍出现症状 儿童、老年人及心脏病、肺病患者应停留在室内,停止户外运动,一般人群减少户外运动
    300+ 六级(严重污染) 健康人群运动耐受力降低,有明显强烈症状,提前出现某些疾病 儿童、老年人和病人应停留在室内,避免体力消耗,一般人群避免户外活动
    (参考详见 http://zh.wikipedia.org/wiki/空气质量指数)

    如果你想了解更多有关空气质量与污染,详见维基百科或者 AirNow

    有关健康建议详见北京的Richard Saint Cyr MD医生的博客:www.myhealthbeijing.com

    注意事项: 所有空气质量数据在发布时均未经验证,并且为了保证数据质量,这些数据可能随时被修改,恕不另行通知。 世界空气质量指数项目在编制此信息的内容时已经运用了所有合理的技能和谨慎,在任何情况下世界空气质量指数项目团队或其代理人将不会为由于提供此数据而直接或间接引起的伤害、合同损失、侵权及其他任何损失负责。



    Temperature unit: