AQS Mitigation Strategies

Question 1

What is a common strategy to reduce vehicle emissions?

Accepted Answer

Promoting public transportation

Answer

Promoting public transportation reduces the number of individual vehicles on the road, thereby decreasing overall vehicle emissions. Fewer cars mean less combustion of fossil fuels, leading to lower releases of pollutants like nitrogen oxides, carbon monoxide, and particulate matter.

Question 2

What role do scrubbers play in air pollution control?

Accepted Answer

Capture pollutants from exhaust gases

Answer

Scrubbers are air pollution control devices that use a liquid (often water or a chemical solution) to remove pollutants from industrial exhaust gases. They are highly effective at capturing particulate matter, acid gases, and other harmful substances before they are released into the atmosphere.

Question 3

How does tree planting help improve air quality?

Accepted Answer

Absorb air pollutants and CO2

Answer

Tree planting improves air quality primarily through photosynthesis, where trees absorb carbon dioxide (CO2) and release oxygen. Additionally, their leaves and surfaces can trap particulate matter and absorb gaseous pollutants like ozone and sulfur dioxide. This natural process effectively filters the air, reducing the concentration of harmful substances and greenhouse gases in the atmosphere.

Question 4

What is a benefit of switching from coal to natural gas in power generation?

Accepted Answer

Reduces air pollutant emissions

Answer

Natural gas is considered a cleaner-burning fossil fuel compared to coal for power generation. When combusted, it produces significantly lower emissions of sulfur dioxide (SO2), nitrogen oxides (NOx), particulate matter, and mercury, which are major air pollutants. This reduction in harmful emissions offers a substantial environmental benefit over coal, contributing to better air quality.

Question 5

How can dust emissions from construction sites be minimized?

Accepted Answer

Applying water to surfaces

Answer

Dust emissions from construction sites are primarily generated by the movement of vehicles, excavation, and material handling on dry surfaces. Applying water to these surfaces, such as unpaved roads and stockpiles, helps bind the dust particles together. This makes them heavier and less likely to become airborne, significantly reducing the amount of particulate matter released into the atmosphere.

(AQS) Air Quality Specialist Certification Practice Test

(AQS) Air Quality Specialist Certification Practice Test

AQS Mitigation Strategies