24 hrs avg AQI
Major Air Pollutants in Lanzhou
The current PM2.5 concentration in Lanzhou is 2.3 times above the recommended limit given by the WHO 24 hrs air quality guidelines value.
Oct 1, 2020
Oct 1, 2020
Explore an insightful air pollution data for last 24 hrs, 7 days & 1 month
24 hrs avg AQI
Quick answers to some commonly asked questions about the air pollution of Lanzhou.
The real-time air quality in Lanzhou is 99 (MODERATE) AQI now. This was last updated 1 hour ago .
The current concentration of PM2.5 in Lanzhou is 35 (µg/m³). The World Health Organisation (WHO) recommends 15 µg/m³ as the threshold concentration of PM2.5 for 24 hrs mean. Currently, the concentration is 1.40 times the recommended limit.
Generally, the air quality at Lanzhou starts deteriorating in late October. The winters are the worst-hit season in terms of air pollution.
You should wear a good N95 mask when you go outdoor in Lanzhou until the AQI is improving upto moderate range.
Office going people should avoid personal vehicles and use public transportations or carpooling.
(i) The primary causes of outdoor air pollution are solid, liquid particles called aerosols & gase from vehicles emissions, construction activities, factories, burning stubble & fossil fuels and wildfire, etc.
(ii) Main causes of indoor air pollution are harmful gases from cooking fuels (such as wood, crop wastes, charcoal, coal and dung), damp, mould smoke, chemicals from cleaning materials, etc.
Indoor air pollution in Lanzhou is as dangerous as outdoor pollution, because the air pollutants come inside the houses or buildings through doors, windows and ventilation.
In Lanzhou, you must use an air purifier or fresh air machine at home or office indoor and close all the doors, windows and ventilations when the outdoor air quality index (aqi) in Lanzhou is very high. Proper ventilation is highly recommended only when outdoor air quality is improving and moderate AQI range.
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Here are the top resources that you can go through to find out more about air quality.