Tag Archive for: nitrogen dioxide

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The connection between the different air pollutants

When it comes to the subject of air pollution, not many people realize that the different air pollutants are very much interconnected. Reactions between various compounds under the right circumstances will form different pollutants, thus exacerbating…
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Everything to know about nitrogen dioxide (NO2)

Nitrogen dioxide (NO2) is a chemical compound part of a group of highly reactive gases known as oxides of nitrogen or nitrogen oxides (NOx). It is a common air pollutant recognized by many standard air quality guidelines, including the World…
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European Regulation and Limits on Air Pollution

When exposed to air pollutants in ambient air, or the air that we breathe, this can have an adverse effect on our health. The European Union (EU) policy on air quality aims to develop and implement appropriate instruments to improve air quality.…
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What the color of your smog tells you about local air pollutants

Smog makes our air unclear and gives a reddish-brown haze of color over our cities. This is why smog can be used as an indicator of poor air quality. Smog can also tell you the severity of air pollutants in your area too. Read on to find out…
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Lichens as an Indicator of Air Quality

Indicator species are organisms that provide information on the condition of their environment. Lichens are one such example, and have been used by scientists for the purpose of determining the air quality in a given area. Read on to find out…
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Copernicus and air quality: The Sentinel-5P instrument

Copernicus, previously known as Global Monitoring for Environment and Security (GMES), is the European Union’s Earth observation (EO) programme. It is served by a set of dedicated satellites from the Sentinel family developed by the European…
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The health impact of specific air pollutants

We breathe 15,000 litres of air every day. Apart from the oxygen (O2) and nitrogen (N2) essential for survival, the atmosphere also consists of many harmful foreign substances. When detectable, they are considered to be air pollution. Air pollution…