Air Quality

PRO REMOVED Due to satellite data shutdown

Air Quality #

Want to know the air quality in your next layover city ? FlightLog app comes with a Air Quality map showing different pollution criterias:

CO (Carbon Monoxide) #

Carbon monoxide poisoning is the most common type of fatal air poisoning in many countries. The greatest sources of CO to outdoor air are cars, trucks and other vehicles or machinery that burn fossil fuels. Carbon monoxide is colorless, odorless, and tasteless, but highly toxic.

Particulate matter < 2.5µm #

Particulate matter are fine inhalable particles, with diameters that are generally 2.5 micrometers and smaller. Particles less than 2.5 micrometers in diameter, also known as fine particles or PM2.5, pose the greatest risk to health.

Ozone O3 #

Ozone, or trioxygen, is an inorganic molecule with the chemical formula O3 is ground-emitted by cars, power plants, industrial boilers, refineries, chemical plants, and other sources chemically react in the presence of sunlight..There is a great deal of evidence to show that ground-level ozone can harm lung function and irritate the respiratory system.

Nitrogen Dioxide (NO2) #

Nitrogen dioxide is introduced into the environment by natural causes, including entry from the stratosphere, bacterial respiration, volcanos, and lightning. These sources make NO2 a trace gas in the atmosphere of Earth, where it plays a role in absorbing sunlight and regulating the chemistry of the troposphere, especially in determining ozone concentrations. NO2 is a reddish brown gas that is emitted from all combustion engines. There are two main nitrogen based compounds that are emitted from combustion engines: NO2 and nitric oxide (NO). Chronic exposure to NO2 can cause respiratory effects including airway inflammation in healthy people and increased respiratory symptoms in people with asthma. NO2 creates ozone which causes eye irritation and exacerbates respiratory conditions, leading to increased visits to emergency departments and hospital admissions for respiratory issues, especially asthma.

Sulfur Dioxide (SO2) #

Sulfur dioxide is a gas. It is invisible and has a nasty, sharp smell. About 99% of the sulfur dioxide in air comes from human sources. The main source of sulfur dioxide in the air is industrial activity that processes materials that contain sulfur, eg the generation of electricity from coal, oil or gas that contains sulfur.

Sulfur dioxide affects human health when it is breathed in. It irritates the nose, throat, and airways to cause coughing, wheezing, shortness of breath, or a tight feeling around the chest. The effects of sulfur dioxide are felt very quickly and most people would feel the worst symptoms in 10 or 15 minutes after breathing it in.

Air Quality Index #

FlightLog Air Quality Index

The app shows a global Air Quality Index, calculated by World Air Quality Index following NowCast as defined by the US-EPA 2016 standard : 0(GOOD) to +300(BAD) with the main pollutant. Below are the index related to each pollutant. The number is the AQI according to your GPS location. By taping on the field, you can have detailled source and update data time, as detailed health implications. The data comes from 10000 air quality stations around the world.

US-EPA 2016 standard #

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

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