Nitrogen oxide how is it formed

Indoor NO 2 levels are a result of both indoor and outdoor sources. While indoor NO 2 is produced by unvented heaters and gas stoves, high outdoor NO 2 levels originating from local traffic and other combustion sources can influence indoor levels.

Air pollution is a serious problem and we should all be concerned. Worldwide, more deaths per year are linked to air pollution than to automobile accidents. NO 2 is both a primary and secondary pollutant. Air pollution impacts everyone but some of us are more susceptible than others: children and seniors, people with existing lung and heart conditions, people working and exercising outdoors.

To combat the serious health effects it is important to find out more about air pollution, such as areas of heavy concentration, elements of composition and cause. To get this information, comprehensive air quality monitoring must be undertaken using air monitoring devices, such as shown below.

These can be portable, ideal for checking pollution hot-spots or personal exposure, or fixed monitors, which measure the air continuously so you know when NO 2 levels are high. Both measure the air in real-time giving you accurate readings to make informed decisions.

Portable monitors to measure NO 2. Aeroqual makes sensors and equipment for air quality monitoring. Monitoring NO 2 and other pollutants is easy as See our portable outdoor air quality monitors to learn more.

She enjoys guiding them to find the right solution to help them understand the air they breathe. About Sitemap Privacy. Toggle navigation. Last Updated: Mar 24, Twinky Tagle. Published: Dec 13, When nitrogen meets oxygen At room temperature, nitrogen is a very inactive gas — a couch potato, you might say.

Both NO and NO 2 are formed during high-temperature combustion in the atmosphere, when oxygen combines with nitrogen. The exhaust gases of cars and trucks are major sources of nitrogen oxides, as are the emissions from electrical power generation plants.

Nitrogen oxides are at least partially responsible for several types of air pollution. Nitrogen dioxide lends its color to the reddish-brown haze we call smog. Photodissociation of nitrogen dioxide by sunlight produces nitric oxide and ozone in the troposphere , which is another component of smog. A series of chemical reactions transform Volatile Organic Compounds VOCs into substances that combine with nitrogen dioxide to produce PAN Peroxyacytyl nitrate , yet another element in smog.

Nitrogen dioxide in the air also reacts with water vapor to form nitric acid, one of the types of acid in acid rain. Fagartikkel , The NOx Fund. NOx emissions from different sources.

Nitric oxide NOx Nitrogen oxide NOx is a chemical compound of oxygen and nitrogen that is formed by reacting with each other during combustion at high temperatures, mainly combustion of fuel such as oil, diesel, gas and organic matter. Read more. Nitrogen oxides are produced in combustion processes, partly from nitrogen compounds in the fuel, but mostly by direct combination of atmospheric oxygen and nitrogen in flames. Nitrogen oxides are produced naturally by lightning, and also, to a small extent, by microbial processes in soils.

Man-made emissions of nitrogen oxides dominate total emissions in Europe, with the UK emitting about 2. Of this, about one-quarter is from power stations, one-half from motor vehicles, and the rest from other industrial and domestic combustion processes. Unlike emissions of sulphur dioxide, emissions of nitrogen oxides are only falling slowly in the UK, as emission control strategies for stationary and mobile sources are offset by increasing numbers of road vehicles.

Emissions from electricity generation - NOx emissions from electricity generation are fairly constant from onwards until During the early s the increased use of gas in electricity generation displaced coal and oil DECC, The cleaner fuel and more modern power stations led to a significant reduction in NOx emissions from the sector until