MCQs on Air Quality, Air quality index, and Air Pollution from pollutants and other sources(part-1)
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What is Air Quality
Air quality refers to the condition of the air within our surroundings Environment, especially in relation to its effects on health and the environment. It is typically assessed based on the concentration of pollutants such as particulate matter (PM), nitrogen dioxide (NO2), sulfur dioxide (SO2), carbon monoxide (CO), ozone (O3), and volatile organic compounds (VOCs) present in the air.
What is Good Air Quality
Good air quality implies that these pollutants are at low levels and do not pose significant health risks to humans or the environment.
What is Poor Air Quality
Poor air quality, on the other hand, indicates higher concentrations of pollutants, which can lead to adverse health effects such as respiratory and cardiovascular problems, as well as environmental degradation.
Factors influenced Air Quality degraded
Air quality is influenced by various factors including industrial emissions, vehicle exhaust, agricultural activities, natural sources like wildfires, and weather conditions (such as temperature inversions that trap pollutants close to the ground). Monitoring and maintaining good air quality are important for public health, environmental sustainability, and overall quality of life.
Air quality index, pollutants sources and their effects MCQ
In this blog , there are 20 MCQ covers various aspects of Air quality, Air quality index, focusing on measurements, health effects, and contributors to the issue. 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.
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Question 1: What does the AQI stand for?
A) Air Quality Instruction
B) Air Quality Index
C) Air Quality Indicator
D) Airborne Quality Index
Explanation: Answer: B) Air Quality Index.
Question 2: What does an AQI value above 300 indicate?
A) Good air quality
B) Moderate air quality
C) Unhealthy air quality
D) Hazardous air quality
Explanation: Answer: B) Moderate air quality.
Question 3: Which pollutant is NOT included in the major pollutants monitored by the EPA for the AQI?
A) Ground-level ozone
B) Carbon monoxide
C) Methane
D) Sulfur dioxide
Explanation: Answer: C) Methane.
Question 4: At what AQI level does air quality become 'Unhealthy' according to the index?
A) 0 to 50
B) 51 to 100
C) 101 to 150
D) 151 to 200
Explanation: Answer: D) 151 to 200.
Question 5: What does a daily AQI colour of yellow represent?
A) Good air quality
B) Moderate air quality
C) Unhealthy for Sensitive Groups
D) Hazardous air quality
Explanation: Answer: B) Moderate air quality.
Question 6: Which colour is associated with the AQI category 'Very Unhealthy?
A) Green
B) Yellow
C) Purple
D) Maroon
Explanation: Answer: C) Purple.
Question 7: What does the AQI value of 100 generally correspond to?
A) Emergency conditions
B) Hazardous air quality
C) Satisfactory air quality
D) National air quality standard
Explanation: Answer: D) National air quality standard.
Question 8: Who is likely to be affected when the AQI is in the 'Orange' category?
A) General public
B) Sensitive groups
C) Everyone
D) No risk to anyone
Explanation: Answer: B) Sensitive groups.
Question 9: What does the AQI colour 'Green' indicate?
A) Hazardous air quality
B) Good air quality
C) Moderate air quality
D) Unhealthy for Sensitive Groups
Explanation: Answer: B) Good air quality
Question 10: Which federal agency is responsible for establishing the AQI in the United States?
A) CDC
B) FEMA
C) EPA
D) FDA
Explanation: Answer: C) EPA.
Question 11: Who typically experiences health effects first when air quality is poor?
A) Children and the elderly
B) Adults without health issues
C) Athletes and outdoor enthusiasts
D) Individuals living in rural areas
Explanation: Answer: A) Children and the elderly.
Question 12: What is the primary purpose of the Air Quality Index (AQI)?
A) To measure temperature changes
B) To access the concentration of air pollutants
C) To monitor humidity levels
D) To predict rainfall patterns
Explanation: Answer: B) To access the concentration of air pollutants .
Question 13: Which factor can contribute to an increase in AQI during rush hour?
A) Cooler temperatures
B) Increased air pollutant concentration
C) Lower population density
D) Decreased vehicle emissions
Explanation: Answer: B) Increased air pollutant concentration.
Question 14: What role do colour codes play in the AQI??
A) They identify air monitoring stations
B) They indicate different time periods
C) They correspond to different AQI ranges
D) They represent different pollutants
Explanation: Answer: C) They correspond to different AQI ranges.
Question 15: Which statement accurately describes how AQI is computed?
A) It is based solely on temperature data
B) It uses air pollutant concentration over a specified time period
C) It depends on wind speed and direction
D) It focuses on soil contamination levels
Explanation: Answer: B) It uses air pollutant concentration over a specified time period.
Question 16: During stagnant air conditions, what typically happens to air pollutants?
A) They decrease in concentration rapidly
B) They convert into harmless substances
C) They remain concentrated in local areas
D) They are dispersed over a wider area
Explanation: Answer: C) They remain concentrated in local areas.
Question 17: The AQI varies based on:?
A) Air pollutant concentration and time
B) Wind speed only
C) Temperature only
D) Humidity and altitude
Explanation: Answer: A) Air pollutant concentration and time.
Question 18: Which of the following is NOT a factor that can increase AQI?
A) Stagnant air conditions
B) Forest fires
C) High wind speeds
D) Rush hour traffic
Explanation: Answer: C) High wind speeds.
Question 19: During high AQI days, sensitive groups are advised to:?
A) Avoid outdoor exertion
B) Exercise outdoors
C) Increase time spent outside
D) Use air purifiers indoors
Explanation: Answer: A) Avoid outdoor exertion.
Question 20: What action might be taken during very poor air quality episodes?
A) Encouraging public transportation use
B) Issuing emergency plans to increase emissions
C) Declaring action days for outdoor events
D) Ordering major emitters to reduce emissions
Explanation: Answer: D) Ordering major emitters to reduce emissions.
Report Card
Total Questions Attempted: 0
Correct Answers: 0
Wrong Answers: 0
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