Chất lượng không khí hiện tại ở Hà Nội là:
Dữ liệu được cập nhật 40 giây trước
Chất lượng không khí theo thời gian thực (PM2.5 AQI):
Chất lượng không khí trung bình (PM2.5 AQI, 60 phút trung bình, dữ liệu 7 ngày):
Chất lượng không khí trung bình (PM2.5 AQI, 60 phút trung bình, dữ liệu 30 ngày):
2019-07-19 - Data from July 1 to 19th 2019 will be invalidated due to a dead bug obstructing the sensor..
2018-01-14 - Sensor apparently died after 4 years of service and will be replaced as soon as possible (ETA: Feb 1st). All data recorded since july 2018 will be discarded.
2017-07-27 - Sensor down from Jul 24 to Jul 27 due to a power supply issue. The problem could not been resolved earlier as the maintainer was away from Jul 24 (« Murphy's law »).
2016-12-22 - Sensor down 12 hours today due to a power failure
2016-10-05 - Sensor down for cleaning
(14:50 - 15:00)
2016-05-25 - Due to a very unusual hardware failure on our main server, 19 hours of data were lost on
25 of may. Hourly backups, real-time database replication and a local copy of the raw sensor data on
the collector (client) will be set up in the next days to prevent any future loss of data.
2016-01-08 - Sensor down for cleaning
2015-10-20 - FAQ page
added. Plans to setup a weather station are postponed due to unreliable hardware from Oregon Scientific...
2015-09-07 - Sensor down for cleaning.
2015-08-19 - Sensor down for 2 hours due to an unforeseen maid event.
2015-08-12 - The sensor was down for 6 hours this afternoon due to a problem with our internet access (VNPT).
2015-08-11 - A dedicated outdoor weather station will be set up in late august/early september, providing real time local values for temperature, humidity, air pressure, rain gauge, wind speed, and wind direction.
2015-07-21 - The air quality sensor and network access equipment are now both secured by uninterruptible power supply units.
2015-04-14 - Sensor down from 4pm to 6pm due to a power outage in the Tay Ho area.
2015-04-07 - Sensor down from 7am to 12am due to a power outage in the Tay Ho area.
2015-03-31 - Sensor down from 9pm to 11pm due to a power outage in the Tay Ho area.
Mức chất lượng AQI
|AQI||Chất lượng||Ảnh hưởng sức khỏe|
|0-50||Tốt||Không ảnh hưởng đến sức khỏe|
|51-100||Trung bình||Air quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people. For example, people who are unusually sensitive to ozone may experience respiratory symptoms.|
|101-150||Kém||Unhealthy for sensitive groups: members of sensitive groups may experience health effects. The general public is not likely to be affected.|
|151-200||Xấu||Unhealthy: everyone may begin to experience health effects; members of sensitive groups may experience more serious health effects|
|201-300||Rất xấu||Very unhealthy: health warnings of emergency conditions. The entire population is more likely to be affected.|
|300+||Nguy hại||Hazardous: Health alert: everyone may experience more serious health effects|
Cảm biến chất lượng không khí đặt tại phường Nhật Tân, quận Tây Hồ:
Dữ liệu mới nhất được cập nhật lúc: 13:29:42 (giờ địa phương)