NPTEL Air Pollution and Control Assignment 7 Answers 2023

Hello NPTEL Learners, In this article, you will find NPTEL Air Pollution and Control Assignment 7 Week 7 Answers 2023. All the Answers are provided below to help the students as a reference don’t straight away look for the solutions, first try to solve the questions by yourself. If you find any difficulty, then look for the solutions.

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NPTEL Air Pollution and Control Assignment 7 Answers 2023:

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Q.1. Which of the following health effects may show up shortly after a single exposure to an air pollutant?

• Short-term health effect
• Long-term health effect
• Intermediate health effect
• Extreme health effects

Q.2. Which of the following pollutant’s exposure causes mesothelioma, a rare form of cancer that is found in the thin lining of the lung, chest, abdomen and heart.

• Ozone
• VOCs
• Carbon monoxide
• Asbestos

Q.3. Biomarkers such as nicotine and cotinine in the saliva, blood and urine are used to detect the recent (within 24 hours) exposure to

• Secondhand smoke
• Asbestos
• Pesticides
• Lead

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Q.4. A ________ samplers used for assessment of NO₂ are low sensitivity samplers suitable for long term monitoring.

• Adsorbent
• Badge type
• Diffusive
• Tube type

Q.5. Which of the following indoor air modelling programs/tools developed to assist in understanding indoor air pollution was NOT developed by EPA

• Indoor Air Quality and Inhalation Exposure (IAQX)
• Indoor Semi-volatile Organic Compounds (i-SVOC)
• Parameters (PARAMS) Program Version 1.1 for indoor emission source modelling
• Ventilation in Closed and Partially Confined Areas (VENTCLIM)

Q.6. Match the suitable options for types of mixing (List – I) with their graphical representation (List – II) that occur within the enclosure in a box model for indoor air quality modelling and choose the correct option given as below:

• P-2, Q-1, R-3, S-4
• P-2, Q-1, R-4, S-3
• P-1, Q-2, R-4, S-3
• P-1, Q-2, R-3, S-4

Q.7. The HVAC system is used to improve indoor air quality, wherein HVAC refers to

• Higher Ventilation, and Air-Circulation
• Higher Ventilation, and Air-Conditioning
• Heating, Ventilation, and Air-Conditioning
• Heating, Ventilation, and Air Circulation

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Q.8. Which of the following air cleaning technologies targets to clean microbes in an indoor environment.

• Fibrous filter media
• Ultraviolet germicidal irradiation (UVGI)
• Adsorbent media
• Chemisorbent media

Q.9. In the case study entitled “personal exposure to fine particles”; which of the following micro-environment was NOT included in the study.

• Houses
• Workplaces
• High traffic areas
• Hospital zones

Q.10. In the case study entitled “personal exposure to fine particles”; a palm-sized optical sensor was used specifically designed to give the mass concentration of _________ (in μg/m³).

• PM2.5
• Carbon monoxide
• VOCs
• Heavy metals

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Disclaimer: This answer is provided by us only for discussion purpose if any answer will be getting wrong don’t blame us. If any doubt or suggestions regarding any question kindly comment. The solution is provided by Chase2learn. This tutorial is only for Discussion and Learning purpose.

About NPTEL Air Pollution and Control Course:

The objective of the course is to impart the knowledge and understanding of causes and effects of air pollution and their controlling mechanisms. The course will provide a deeper understanding of air pollutants, pollution inventory and modelling. The course also imparts knowledge on the impacts of air pollution on different aspects such as policy, human health and various contemporary technological innovation for betterment of air quality.

Course Outcome:

• Week 1 : Air Pollution: Introduction and Impacts of air pollution on human health, vegetation, animals, building materials, structures, and atmosphere, soil and water bodies.
• Week 2 : Sources, classification and formation/transformation of air pollutants: Meteorology and Atmospheric Stability.
• Week 3 : Lapse Rate, Plume Behaviour, and Air Quality Monitoring, Air Quality Index (AQI)
• Week 4 : Air Quality Modelling, Gaussian dispersion models: point, line and area source models
• Week 5 : Emissions Inventory: Transport, Industrial, Agricultural, Residential and Commercial sectors
• Week 6 : Application of Remote sensing/Satellite based data in emission inventory, Source apportionment using receptor modelling.
• Week 7 : Indoor air pollution: sources, types and health impacts. Sampling, assessment and evaluation of Indoor air quality.
• Week 8 : Global and regional environmental issues of air pollution: Ozone depletion, Climate change, Global warming, Acid rain.
• Week 9 : Air pollution control devices, equipment and their design.
• Week 10 :  Air pollution emission standards, National and international policies, acts, rules and regulations.
• Week 11 : Emerging technologies and strategies to mitigate air pollution, Current challenges and way forward.
• Week 12 : Lab-based measurements of air pollutants.

CRITERIA TO GET A CERTIFICATE:

Average assignment score = 25% of average of best 8 assignments out of the total 12 assignments given in the course.
Exam score = 75% of the proctored certification exam score out of 100

Final score = Average assignment score + Exam score

YOU WILL BE ELIGIBLE FOR A CERTIFICATE ONLY IF AVERAGE ASSIGNMENT SCORE >=10/25 AND EXAM SCORE >= 30/75. If one of the 2 criteria is not met, you will not get the certificate even if the Final score >= 40/100.

If you have not registered for exam kindly register Through https://examform.nptel.ac.in/

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