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About AirVisual:
without air quality data, the hazards of air pollution will remain invisible and unbeatable. AirVisual’s international team, now a part of IQAir, is passionate about empowering citizens through accessible technology to understand their environments and take control. We firmly believe that the will of citizens and communities has enormous power to shape our world into a healthier, smarter place. The support and engagement of citizens around the world forms the backbone of what we do -AirVisual is delighted to broadcast and learn from the global air quality community on a daily basis, shaping our approach to the air pollution problem.
How many places can be seen on the app?
10000+ locations globally, and the is growing every day.
What is the current reading?
Air quality data are either from government monitoring stations or contributors collected with AirVisual monitors. See the Unity monitor here (updated hourly)
How does the air quality forecast work?
AirVisual's air quality forecasts are generated by using machine learning, a subset of Artificial Intelligence, technologies. These predictions are derived from factors such as historical information, weather trends, wind movement, geography, human behavioral patterns and current air pollution readings in surrounding areas. By recognizing trends in past conditions and outcomes, AirVisual computers are able to predict future conditions. All of this information is provided on the device’s screen -as well as on our free app and website - so that users can plan ahead and optimize your well-being when outdoors.
How does the PM2.5 sensor work?
The AirVisual Node/Pro uses a light scattering laser sensor for PM2.5 measurements. How it works is that within the sensor's measuring 'chamber', a laser light beam is shone onto particles, and this light is then irradiated in all directions from these particles (scattering). A light detector (or 'photometer detector') then measures all of this scattered light, and from this, the sensor can calculate the concentration of particles within the chamber. In this way, the sensor is able to detect near microscopic particles ranging from 0.3μm to 2.5μm. The sensor in the AirVisual Node/Pro also has a small fan to ensure a constant flow of air through the measuring chamber.
Each reading reported from the sensor is calibrated by a special algorithm which takes into account external temperature and humidity values.
Unity Concord International School Closure Policy - ENG/THAI/KOR/CHN
The following procedures will be put in place to address the poor air quality;
ทางโรงเรียนขอความร่วมมือจากผู้ปกครองในการติดตามข่าวสารผ่านทาง Line ,Facebookและdojo หากจะทำการปิดโรงเรียน จะทำการแจ้งเวลา 6.30 น ในกรณีที่ค่าดัชนีคุณภาพอากาศสูงกว่า 400 ทางโรงเรียนจะแจ้งให้ผู้ปกครองรับทราบ แต่หากค่าดัชนีคุณภาพอากาศสูงกว่า500 ทางโรงเรียนจะทำการปิดในทันทีโดยปราศจากข้อสงสัย
หากในกรณีที่ระหว่างวัน ค่าดัชนีคุณภาพอากาศอยู่ในช่วง400หรือมากกว่า ทางโรงเรียนไม่อนุญาตให้นักเรียนกลับบ้าน เนื่องจากทางโรงเรียนมีเครื่องฟอกอากาศ นักเรียนจะทำกิจกรรมกายในอาคาร และทางโรงเรียนจะทำการติดตามค่าดัชนีคุณภาพอากาศระหว่างวัน
ขออภัยในความไม่สะดวก
협조에 감사드립니다.
UPDATE - 1st October 2019
As you are aware, our school has already installed air purifiers. This week we will be ensuring all rooms have their air purifiers in working order. We do not anticipate air quality being so poor as to be unsafe for outdoor activity. We will, however, monitor the AQI levels daily to ensure that our students are safe while in our school. For more information please visit https://www.ucis.ac.th/air-quality-at-unity
W.H.O Infographics - Sources of Air Polution
W.H.O Infographics - Solutions of Air Polution
W.H.O Infographics - Impact of Air Polution on Children
W.H.O Infographics - Air Polution is a Global Childrens Health Issue
W.H.O Infographics - Air Polution - We all Have a Part to Play
