Indoor Air Quality Monitoring of Nitrogen Dioxide (NO2) to reduce Nitrogen Dioxide Pollution
Nitrogen Dioxide (NO2) Monitoring to reduce Nitrogen Dioxide Pollution
Following article lists sources of nitrogen dioxide causing indoor nitrogen dioxide pollution, why measurement of indoor nitrogen dioxide is necessary, harmful effects of nitrogen dioxide on human health and how indoor nitrogen dioxide is measured.
Nitrogen Dioxide (NO2) is a reddish-brown gas with irritating odour. The indoor sources of NO2 include tobacco smoke and gas-, kerosene- and coal-burning appliances such as ovens, space and water heaters and fireplaces, particularly poorly maintained appliances. It can be found in industries wherein DGs are used, as it is the most toxic component in it. Road traffic is the principal outdoor source of nitrogen dioxide pollution. When this outdoor air comes in through HVAC systems, it causes nitrogen dioxide pollution.
Nitrogen Dioxide (NO2) is an extremely poisonous gas and inflammable gas. In indoor environments, accumulation of nitrogen dioxide at high levels can damage lungs of the occupants. The harmful effects of nitrogen dioxide pollution are visible in longer duration. Its exposure can increase risk of respiratory infections, especially in young children.
Nitrogen dioxide is toxic on inhalation. Symptoms of poisoning (lung edema) tend to appear several hours after inhalation of a low but potentially fatal dose. Low concentrations anesthetize the nose, thus creating a potential for overexposure. Nitrogen dioxide pollution causes irritation affecting the mucous of the eyes, nose, throat, and respiratory tract. Extremely high-dose exposure (as in a building fire) of nitrogen dioxide may result in pulmonary edema and diffuse lung injury. Continued exposure to high nitrogen dioxide pollution can contribute to the development of acute or chronic bronchitis.
Nitrogen Dioxide can be measured by using a nitrogen dioxide meter. NO2 meter makes it possible to monitor nitrogen dioxide pollution vapors in air. The instrument has an LCD display giving concentrations in ppm, a low battery indicator, and an audible alarm that can be set at any level from0-20ppm. This helps to effectively monitor nitrogen dioxide pollution.
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