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Control of Air Pollutants
Page 2


Control of Air Pollutants
Control of Air Pollutants
Air Quality Standards
 Air quality standards are provided by many groups
and organisations such as:
 National Environment Protection Council
Standards
 WHO
 US EPA
 NSW EPA/DECC standards
 Standards Australia
Page 3


Control of Air Pollutants
Control of Air Pollutants
Air Quality Standards
 Air quality standards are provided by many groups
and organisations such as:
 National Environment Protection Council
Standards
 WHO
 US EPA
 NSW EPA/DECC standards
 Standards Australia
Control of Air Pollutants
Particulates
 Particulate matter the most obvious form of air
pollution – therefore receives the most effort in
pollution reduction measures
 Process Modifications
 fuel substitution
 encapsulation and wet operation can also greatly
reduce the amount of fugitive particles emanating
from a potential pollutant source
Page 4


Control of Air Pollutants
Control of Air Pollutants
Air Quality Standards
 Air quality standards are provided by many groups
and organisations such as:
 National Environment Protection Council
Standards
 WHO
 US EPA
 NSW EPA/DECC standards
 Standards Australia
Control of Air Pollutants
Particulates
 Particulate matter the most obvious form of air
pollution – therefore receives the most effort in
pollution reduction measures
 Process Modifications
 fuel substitution
 encapsulation and wet operation can also greatly
reduce the amount of fugitive particles emanating
from a potential pollutant source
Control of Air Pollutants
Particulates – Cyclones
 separation by centrifugation - most
common form of particulate removal
 gas is spun rapidly - heavier particulate
matter to collect on outside of separator by
centrifugal force, where it is collected and
removed
 cyclone separator
Page 5


Control of Air Pollutants
Control of Air Pollutants
Air Quality Standards
 Air quality standards are provided by many groups
and organisations such as:
 National Environment Protection Council
Standards
 WHO
 US EPA
 NSW EPA/DECC standards
 Standards Australia
Control of Air Pollutants
Particulates
 Particulate matter the most obvious form of air
pollution – therefore receives the most effort in
pollution reduction measures
 Process Modifications
 fuel substitution
 encapsulation and wet operation can also greatly
reduce the amount of fugitive particles emanating
from a potential pollutant source
Control of Air Pollutants
Particulates – Cyclones
 separation by centrifugation - most
common form of particulate removal
 gas is spun rapidly - heavier particulate
matter to collect on outside of separator by
centrifugal force, where it is collected and
removed
 cyclone separator
Control of Air Pollutants
dirty
gas inlet
cleaned  gas
outlet
particulate outlet
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FAQs on PPT - Control of Air Pollutants - Environmental Engineering - Civil Engineering (CE)

1. What are the main sources of air pollutants?
Ans. The main sources of air pollutants include industrial emissions, vehicle exhaust, power plants, agricultural activities, and residential heating and cooking.
2. How do air pollutants affect human health?
Ans. Air pollutants can have detrimental effects on human health, ranging from respiratory problems such as asthma and bronchitis to more severe conditions like lung cancer and heart disease. These pollutants can also worsen existing health conditions and reduce overall life expectancy.
3. What are the methods used to control air pollutants?
Ans. There are several methods used to control air pollutants, including implementing stricter emission standards for industries and vehicles, promoting the use of cleaner energy sources, improving waste management practices, and enhancing air quality monitoring and enforcement.
4. How does air pollution impact the environment?
Ans. Air pollution has significant environmental impacts, including the degradation of ecosystems, loss of biodiversity, acid rain formation, and damage to crops and vegetation. It can also contribute to climate change by increasing the concentration of greenhouse gases in the atmosphere.
5. What are the economic consequences of air pollution?
Ans. Air pollution can result in substantial economic costs, such as increased healthcare expenses due to the treatment of pollution-related illnesses, productivity losses from missed workdays, and damage to infrastructure and property. Additionally, it can negatively impact tourism and other industries reliant on clean air and a healthy environment.
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