Question
Download Solution PDFThe most dangerous Pollutant vehicular emissions is
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFExplanation:
The Most Dangerous Pollutant in Vehicular Emissions
Vehicular emissions contain several pollutants, each with varying degrees of harmfulness. Among the given options:
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Carbon Monoxide (CO): CO is highly toxic and dangerous. It interferes with the oxygen transport in the bloodstream by binding to hemoglobin more effectively than oxygen. This can lead to severe health issues, including suffocation and death in extreme cases.
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Sulfur Dioxide (SO2): SO2 is harmful to the respiratory system and can contribute to acid rain. However, it is not as immediately lethal as CO in small concentrations.
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Carbon Dioxide (CO2): CO2 is a greenhouse gas contributing to climate change. While it is harmful in the long term, it is not immediately toxic to humans at typical concentrations in vehicular emissions.
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Ozone (O3): Ozone at ground level is harmful to human health and the environment. However, it is not directly emitted by vehicles; it is formed by the reaction of other pollutants (e.g., NOx and VOCs) in sunlight.
Analyzing the Given Options
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"Carbon Monoxide (CO):" (Correct Answer)
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CO is highly toxic and can cause suffocation and death by preventing oxygen transport in the body.
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It is emitted directly by vehicles and poses immediate health risks, making it the most dangerous pollutant among the options.
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"Sulfur Dioxide (SO2):" (Incorrect)
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SO2 is harmful but less immediately dangerous compared to CO.
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Its primary impacts are long-term, such as respiratory issues and environmental damage.
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"Carbon Dioxide (CO2):" (Incorrect)
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CO2 is a greenhouse gas contributing to climate change but is not toxic to humans at common concentrations.
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Its harmful effects are long-term and environmental rather than immediate or direct.
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"Ozone (O3):" (Incorrect)
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Ozone is harmful at ground level but is not emitted directly by vehicles.
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It is formed indirectly through chemical reactions involving other pollutants.
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Last updated on Jul 22, 2025
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