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. Nitrogen oxides NO x is a collective term used to refer to nitrogen monoxide nitric oxide or NO and nitrogen dioxide NO 2 Nitrogen monoxide NO is a colourless gas and one of the principal oxides of nitrogen Nitrogen dioxide NO 2 is a reddish-brown gas with a pungent, acrid odour and one of the several oxides of nitrogen.
NOx can be from natural, biogenic and industrial sources Natural sources: Mainly thunderstorms due to the extreme heat of lightning. The impact of NOx to humans and environment How does the presence of nitrogen oxides impact me? Are there any adverse effects on my health and should I be concerned? Does it impact the environment? What causes NO 2 air pollution?
Is the air we breathe safe? Should we be concerned? How can we check the cleanliness of air outdoors? Is it important to monitor NO2 in ambient air? Who is Aeroqual?
Twinky Tagle. Subscribe to be notified of new blogs. Support Support Center How to Buy. It is one of six widespread air pollutants that have national air quality standards to limit them in the outdoor air. NO 2 can also form indoors when fossil fuels like wood or natural gas are burned. New research warns that NO 2 is likely to be a cause of asthma in children. A large new study found evidence that people with lung cancer faced greater risk from NO 2 , ozone, and other outdoor air pollutants.
The study tracked the air pollution levels from to experienced by more than , cancer patients in California. The researchers found that exposure to these air pollutants shortened their survival. Looking beyond the lungs, newer research has linked NO 2 to cardiovascular harm, lower birth weight in newborns and increased risk of premature death.
Cars, trucks, and buses are the largest sources of emissions, followed by power plants, diesel-powered heavy construction equipment and other movable engines, and industrial boilers. Man-made sources in the U. Monitors show the highest concentrations of outdoor NO 2 in large urban regions such as the Northeast corridor, Chicago and Los Angeles.
NO 2 can be a problem indoors, as well. Kerosene or gas space heaters and gas stoves also produce substantial amounts of nitrogen dioxide. Nitric oxide is a colorless, flammable gas with a slight odor. Nitrogen dioxide is a deep red-orange gas that is poisonous but not flammable. It, along with aerosols, is responsible for the reddish-brown color of smog.
At high concentrations it is highly toxic, and can cause serious lung damage. Nitrogen dioxide is a strong oxidizing agent, and is thus very reactive with other compounds. Scientists estimate that nature produces between 20 and 90 million tons of nitrogen oxides on Earth each year. Natural sources include volcanoes, oceans, biological decay, and lightning strikes.
Human activities add another 24 million tons of nitrogen oxides to our atmosphere annually. Four representations chemists use for nitrogen dioxide NO 2.
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