Which of the following pollutants is the major cause of respiratory diseases?
Suspended fine particles
The question deals with identifying the primary pollutant responsible for causing respiratory diseases among the given options. Understanding the characteristics of each pollutant can help determine the correct answer.
- Suspended Fine Particles (PM2.5 and PM10): These are tiny particles suspended in the air, small enough to enter the respiratory system and cause respiratory problems such as asthma, lung inflammation, and other lung diseases. These particles are known for their ability to penetrate deep into the lungs and even enter the bloodstream, making them a major public health concern.
- Nitrogen Oxides (NOx): These gases can also cause respiratory problems but are primarily known for contributing to smog formation and acid rain. Long-term exposure may affect respiratory function, but their direct impact on respiratory diseases is less pronounced compared to fine particles.
- Carbon Monoxide (CO): This gas disrupts the ability of blood to carry oxygen, leading to cardiovascular effects, but is not directly linked to respiratory diseases.
- Volatile Organic Compounds (VOCs): These are released from certain solids or liquids and contribute to smog but are not majorly implicated in respiratory diseases directly.
From the analysis above, it is clear that suspended fine particles are the direct and significant cause of respiratory diseases, as they irritate lung tissue and cause respiratory issues. Therefore, the correct answer is Suspended Fine Particles.
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