MCQs on Hazardous Air pollutants or Toxic air pollutants and their health effects for exam preparations

MCQs on hazardous air pollutants sources and their effect

MCQs on Hazardous Air pollutants or Toxic air pollutants and their health effects for exam preparations
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What is a Hazardous air pollutants

Hazardous air pollutants (HAPs), also known as toxic air pollutants or air toxics, refer to a group of pollutants known or suspected to cause serious health and environmental effects. These pollutants are typically emitted from industrial processes, vehicle exhaust, and other sources, and they can have both short-term and long-term impacts on human health and the environment. They can be Gases, such as Hydrogen chloride, Benzene, Toluene or it may be compounds or metals particles like asbestos, mercury, cadmium or chromium. This HAPs can cause serious health issues like Cancer, birth defects.

Characteristics of Hazardous air pollutants

Some characteristics of hazardous air pollutants include:

1. Toxicity: They can cause serious health effects such as cancer, reproductive disorders, neurological disorders, and respiratory problems. Different HAPs have varying degrees of toxicity.

2. Persistence: Some HAPs persist in the environment for long periods, accumulating in ecosystems and organisms.

3.Bioaccumulation: They can accumulate in the food chain, posing risks to organisms at higher trophic levels.

4.Regulatory Focus: Many countries have regulations in place to monitor and control emissions of HAPs, aiming to reduce public exposure and environmental impact.

Examples of Hazardous Air pollutants

Examples of hazardous air pollutants include benzene, formaldehyde, mercury, lead compounds, and dioxins. Efforts to mitigate the impact of these pollutants include technological advancements in emission controls, substitution of less harmful substances, and public policies aimed at reducing overall emissions from industrial and transportation sources.

Hazardous Air Pollutants sources and their effects MCQ

In this blog , Here are 20 multiple choice questions and answers based on the Air Pollutants, sources, impacts, and regulatory measures. Cause and its effect. These MCQ and solution help you to prepare for Academic education , GK paper in SSC, PSC,NDA, CDS, UPSC, UPPSC, CBSE, ICSE and many state level PSC examinations and other competitive examinations.
Question 1: How many air pollutants are regulated by law, according to the text??
A) Almost 100
B) Almost 150
C) Almost 200
D) Almost 250
Explanation: Answer: C) Almost 200.
Question 2: Which of the following is NOT mentioned as a common regulated air pollutant ?
A) Mercury
B) Carbon dioxide
C) Lead
D) Benzene
Explanation: Answer: B) Carbon dioxide.
Question 3: What is benzene primarily found in?
A) Coal
B) Gasoline
C) Diesel fuel
D) Natural Gas
Explanation: Answer: B) Gasoline.
Question 4: What health issues can benzene cause in the short term?
A) Eye, skin, and lung irritation
B) Central nervous system damage
C) Liver damage
D) Blood disorders
Explanation: Answer: A) Eye, skin, and lung irritation.
Question 5: Which organization classifies benzene as a carcinogen?
A) World Health Organization (WHO)
B) Environmental Protection Agency (EPA)
C) Food and Drug Administration (FDA)
D) Centers for Disease Control and Prevention (CDC)
Explanation: Answer: B) Environmental Protection Agency (EPA).
Question 6: What type of compound are polycyclic aromatic hydrocarbons (PAHs)?
A) Metals
B) Volatile organic compounds
C) Radioactive elements
D) Hydrocarbons
Explanation: Answer: D) Hydrocarbons.
Question 7: What health issues are linked to large amounts of PAH exposure?
A) Eye and lung irritation
B) Liver issues and cancer
C) Blood disorders
D) All of the above
Explanation: Answer: D) All of the above.
Question 8: Where do PAHs primarily originate from?
A) Industrial wastewater
B) Traffic exhaust and wildfire smoke
C) Agricultural pesticides
D) Ocean pollution
Explanation: Answer: B) Traffic exhaust and wildfire smoke.
Question 9: What effects did PAH exposure during pregnancy have on children?
A) Slower brain-processing speeds
B) Improved cognitive abilities
C) Reduced physical growth
D) None of the above
Explanation: Answer: A) Slower brain-processing speeds.
Question 10: What system does dioxins primarily affect?
A) Cardiovascular system
B) Nervous system
C) Immune system
D) Endocrine system
Explanation: Answer: C) Immune system.
Question 11: Which body organ can be affected by dioxins in the short term?
A) Liver
B) Kidneys
C) Lungs
D) Brain
Explanation: Answer: A) Liver.
Question 12: What is mercury known to attack?
A) Cardiovascular system
B) Central nervous system
C) Immune system
D) Muscular system
Explanation: Answer: B) Central nervous system.
Question 13: How does lead affect children?
A) It has no effect on children
B) It enhances their learning ability
C) It damages their brains and kidneys
D) It improves their IQ
Explanation: Answer: C) It damages their brains and kidneys.
Question 14: What is a common source of emissions for benzene?
A) Nuclear power plants
B) Wind turbines
C) Solar panels
D) Incineration
Explanation: Answer: D) Incineration.
Question 15: Which pollutant can cause eye, skin, and lung irritation in the short term?
A) Mercury
B) Lead
C) Dioxins
D) Benzene
Explanation: Answer: D) Benzene.
Question 16: What does PAH exposure during pregnancy potentially affect in children?
A) Growth hormone levels
B) Brain-processing speeds
C) Vision development
D) Allergic reactions
Explanation: Answer: B) Brain-processing speeds.
Question 17: Which pollutant is commonly associated with causing neurological disorders and cognitive impairments??
A) Benzene
B) Carbon monoxide
C) Sulfur dioxide
D) Nitrogen dioxide
Explanation: Answer: A) Benzene.
Question 18: Which of the following health effects can be caused by exposure to hazardous air pollutants?
A) Increased IQ
B) Reduced cancer risk
C) Respiratory problems
D) Enhanced immune function
Explanation: Answer: C) Respiratory problems.
Question 19: Which regulatory approach is typically used to control emissions of hazardous air pollutants?
A) Carbon pricing
B) Cap and trade
C) Renewable energy incentives
D) Emission standards and limits
Explanation: Answer: D) Emission standards and limits.
Question 20: Which of the following is NOT a characteristic of hazardous air pollutants (HAPs)?
A) They are emitted mainly from natural sources
B) They can cause serious health effects
C) They include substances like benzene and dioxins
D) They can persist in the environment
Explanation: Answer: A) They are emitted mainly from natural sources.

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