Hay Fever Cause Identified
Hay fever, also known as allergic rhinitis, is an allergic reaction. It occurs when the immune system overreacts to substances called allergens that are typically harmless.
Analyzing Air Components and Hay Fever
The question asks to identify the cause of Hay fever from the given components found in polluted air. Let's examine the options:
- Carbon monoxide (CO): A poisonous gas resulting from incomplete combustion. It reduces the oxygen-carrying capacity of blood, causing poisoning, but not Hay fever.
- Particulate matter (PM): Microscopic solid or liquid particles suspended in the air. PM can irritate the lungs and worsen respiratory conditions like asthma, but it's not the specific trigger for Hay fever.
- Pollen: Tiny particles released by plants, trees, and grasses. Pollen grains are common airborne allergens that trigger Hay fever symptoms in sensitive individuals.
- Ozone (O3): A gas that forms a layer protecting Earth but is also a major air pollutant at ground level. Ground-level ozone irritates the airways and can worsen lung diseases, but it doesn't directly cause Hay fever itself.
Conclusion on Hay Fever Trigger
Pollen is the primary trigger for Hay fever. While other substances listed can be harmful components of polluted air, they do not cause the specific allergic immune response characteristic of Hay fever.
Therefore, Pollen is the correct answer.
Similar Questions
- Acid rain is mainly caused due to the presence of which two gases in the atmosphere?
- Which of the following production activities is the largest emitter of $CO_{2}$?
- Which of the following gases is emitted by swamps and paddy fields?
- Which of the following DOES NOT produce Greenhouse gases?
- Which of the following gas is not related to acid rain?
- Which of the following chemicals/gases is/are responsible for causing the greenhouse effect?
- Which of the following mainly causes the depletion of the ozone layer?
- Since 2011 the supreme court banned the manufacture, sale and use of which pesticide that causes hazardous effects to human life as well as the environment?
- Read the given statements, labelled Assertion (A) and Reason (R), and select the most appropriate option with respect to them.
Statements:
'A': Carbon dioxide is not always a pollutant.
'R': Plants require carbon monoxide for growth that they get from carbon dioxide. - Which of the following is NOT a greenhouse gas?
Important Questions from Environmental pollution
Which one of the following is a major environmental issue in eastern Canada?
One of the main causes of air pollution in cities is emissions from vehicles like cars and trucks. Cars emit various pollutants which are bad for human health when inhaled, like
1) Nitrogen oxides (NO x)
2) Carbon monoxide (CO)
3) Carbon dioxide (CO 2)
4) Benzene
Which of the above pollutants are not tolerated by human beings even at very low levels?Which of the following substances are harmful for health if present in food items?
1) Pesticide residues
2) Lead
3) Metanil yellow
4) Mercury
Select the correct answer using the code given below:
Which of the commonly used household item(s) release Bisphenol A (BPA) which is an endocrine disruptor and bad for human health?
1. Steel utensils
2. Plastic coffee mugs
3. Aluminium utensils
4. Plastic water storage bottles
Select the correct answer using the code given below:Which one of the following is a cause of acid rains?
