is nitrogen dioxide a harmful gas
Answers
ABSOLUTELY
IT DIRECTLY AFFECTS ON OUR
CIRCULATION SYSTEM
SUDDEN DEATH CAN CAUSE DUE TO PRESSURE ON HEART..
SELECT TO BRAINLIST ANSWER
Answer:
Nitrogen dioxide poisoning is the illness resulting from the toxic effect of nitrogen dioxide (NO
2). It usually occurs after the inhalation of the gas beyond the threshold limit value.[1] Nitrogen dioxide is reddish-brown with a very harsh smell at high concentrations, at lower concentrations it is colorless but may still have a harsh odour. Nitrogen dioxide poisoning depends on the duration, frequency, and intensity of exposure. Nitrogen dioxide is an irritant of the mucous membrane linked with another air pollutant that causes pulmonary diseases such as OLD, asthma, chronic obstructive pulmonary disease and sometimes acute exacerbation of COPD and in fatal cases, deaths.[2] Its poor solubility in water enhances its passage and its ability to pass through the moist oral mucosa of the respiratory tract. Like most toxic gases, the dose inhaled determines the toxicity on the respiratory tract. Occupational exposures constitute the highest risk of toxicity and domestic exposure is uncommon. Prolonged exposure to low concentration of the gas may have lethal effects, as can short-term exposure to high concentrations like chlorine gas poisoning. It is one of the major air pollutant capable of causing severe health hazards such as coronary artery disease as well as stroke.[3] Nitrogen dioxide is often released into the environment as a byproduct of fuel combustion but rarely released by spontaneous combustion. Known sources of nitrogen dioxide gas poisoning include automobile exhaust and power stations. The toxicity may also result from non-combustible sources such as the one released from anaerobic fermentation of food grains and anaerobic digestion of biodegradable waste.[4] The World Health Organization (WHO) developed a global recommendation limiting exposures to less than 20 parts per billion for chronic exposure and value less 100 ppb for one hour for acute exposure, using nitrogen dioxide as a marker for other pollutants from fuel combustion.[5] The standards also based on the concentration of nitrogen dioxide that show a significant and profound effects on the function of the pulmonary of asthmatic patients.[6] Historically, some cities in the United States including Chicago and Los Angeles have high levels of nitrogen dioxide but the EPA set a standard values less than 100 ppb for a one-hour exposure and less than 53 ppb for chronic exposure.
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