1
Question
In Indian metropolitan cities like Delhi major air pollutant is
In Indian metropolitan cities like Delhi major air pollutant is
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Solution
The correct option is C SPM
Air pollutant
Air pollutants are substances which contaminate the air and degrade the air quality for breathing. The common air pollutants are harmful gases such as SO2, CO2, NOx, O3 and suspended particulate matter (SPM).
SPM
SPM stands for suspended particulate matter. It refers to the total amount of solid and liquid particles present suspended in the air.
The size of 2.5 micrometres in diameter of particulate matter or less in diameter is the most harmful to human health.
These fine particulates can easily penetrate deep into the lungs during inhalation and cause damage to the lungs. Additionally, they cause breathing and respiratory disorders, inflammation, irritation, and premature death. Thus, SPM (suspended particulate matter) is the major air pollutant in Indian metropolitan cities like Delhi.
Final answer
(A) SPM
Air pollutant
Air pollutants are substances which contaminate the air and degrade the air quality for breathing. The common air pollutants are harmful gases such as SO2, CO2, NOx, O3 and suspended particulate matter (SPM).
SPM
SPM stands for suspended particulate matter. It refers to the total amount of solid and liquid particles present suspended in the air.
The size of 2.5 micrometres in diameter of particulate matter or less in diameter is the most harmful to human health.
These fine particulates can easily penetrate deep into the lungs during inhalation and cause damage to the lungs. Additionally, they cause breathing and respiratory disorders, inflammation, irritation, and premature death. Thus, SPM (suspended particulate matter) is the major air pollutant in Indian metropolitan cities like Delhi.
Final answer
(A) SPM
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