Air Pollution Flashcards
Is the contamination of air due to the presence of substances that are harmful to the health of living organisms and the non-living things.
Air pollution
Are any harmful substance like certain chemicals or waste products that renders the air soil water or other natural resources.
Pollutants
Also known as smog (combination of smoke and fog), it can harm plants, animals, and human beings.
Ground-level ozone
Is a colorless, odorless, and tasteless gas and is toxic to animals and human beings. Also known as the “silent killer”
Carbon monoxide
Is made of tiny carbon particles created by incomplete combustion of fossil fuels.
Soot
Is a gaseous air pollutant composed of nitrogen and oxygen.
Nitrogen Oxide
Is a gaseous air pollutant composed of sulfur and oxygen. It is a colorless gas with a pungent odor.
Sulfur Dioxide
It can adversely affect the nervous system, kidney function, immune system, reproductive and developmental systems, and the cardiovascular system.
Lead
Two Causes of Air Pollution
✓ Human Activities
✓ Natural Environment
CATEGORIES OF AIR POLLUTANTS
Are air pollutants DIRECTLY EMITTED from a source.
Primary Pollutant
Are air pollutants that are not directly emitted as such but forms when two primary pollutants react in the atmosphere.
Secondary Pollutants
Is a mixture of different gases in the atmosphere.
Air
Composition of Air
21% Oxygen, 78% Nitrogen
The horizontal motion of air due to the pressure difference between two places.
Wind
Is a suspension of fine solid particles or liquid droplets in air or another gas.
Aerosol
Fog, mist, and dust are an example of _______ aerosol.
Natural Aerosol
Smoke, Sprayed Pesticides, and Particulate air pollutants are an example of _____________ Aerosol.
Anthropogenic Aerosol
The amount of water the air can hold before it rains.
Relative humidity
Air pollution is the ______ largest threat to human health.
Fourth (4th)
7 Sources of Air Pollution
- Natural Sources
- Agricultural Sources
- Domestic Sources
- Commercial Sources
- Industrial Sources
- Transportation-Related Sources
- Man-Made Sources
Wildfires, volcanic activity, vegetation, animals, and dust from places without vegetation are an example of _______ Sources of Air Pollution.
Natural Sources
Are also called anthropogenic sources which include naturally occurring pollutants released from human activities.
Man-Made Sources
Are also called household sources of pollution, which include fuel for cooking, heating and lighting of incense, use of pesticides and chemicals for cleaning, etc.
Domestic Sources
Commercial and residential contribute ________ % of 2020 greenhouse gas emission.
13%
Agriculture contributes ______ % of 2020 greenhouse gas emissions.
11%
Industries contribute ______ % of 2020 greenhouse gas emission.
24%
Transportation contributes _______ % of 2020 greenhouse gas emissions.
27%
Health Effects of Air Pollution.
• Respiratory Problems
• CardioVascular Problems
• Cancer
• Reproductive Problems
• Neurological Problems
• Allergies and Skin Problems
What does PAHS mean?
Polycyclic Aromatic Hydrocarbons
Effects on Animals and Plants of Air Pollution
• Climate Change
• Harm to Wildlife
• Effects on Weather Patterns
• Damage to crops and forest
• Habitat Destruction
• Biodiversity Loss
Two Types of Air Pollutans
- Particulate Pollutants
- Gaseous Pollutants
Is a mixture of solid particles and liquid droplets found in the air.
Particulate Pollutants
Are particulate matter smaller than 10 micrometers in diameter.
PM10
Are particulate matter smaller than 2.5 micrometers in diameter.
PM2.5
What is TLVS?
Threshold Limit Values
Is a gas composed of three atoms of oxygen.
Ozone
Is a naturally-occuring chemical element found in rock in the earth’s crust, including in deposits of coal.
Mercury
Colorless, odorless gas that occurs abundantly in nature and as a product of certain human activities.
Methane
A wear mechanism that is caused by the inclusion of hard particles between two sliding or rolling surfaces.
Abrasion
Laying down of sediment or particulate matter on the surfaces of materials.
Deposition and removal
Is the process of substances reacting directly with another material that results in chemical degradation or change.
Direct chemical attack
Is the process of substances reacting directly with another material that results in chemical degradation or change.
Direct Chemical Attack
Is the process of substances reacting indirectly with another substance, which in turn, results in a new substance that could then directly damage said materials.
Indirect Chemical Attack
A chemical or electrochemical reaction which results in the degradation of materials that is almost unique to metals.
Corrosion
Effects of Air Pollution on Materials
Abrasion
Deposition and Removal
Direct Chemical Attack
Indirect Chemical Attack
Corrosion
The techniques employed to reduce or eliminate the emission into the atmosphere of substances that can harm the environment or human health.
Air pollution control
Two controlling measures for air pollution
Preventive measures
Control measures
Mainly aimed at correction right at the source so there will be lesser amount of pollutant emitted.
Preventive measures
The most common method of eliminating and reducing pollutants to an acceptable level.
Control Measures
Five Natural Cleansing of the Atmosphere
Gravitational Settling
Absorption
Rainout
Adsorption
Dispersion
It reduces the concentration of air pollutants at one place although it does not remove them from the environment as a whole.
Dispersion
This process helps in removing flocculated particles formed by unit team of smaller particles over larger particles, till a flock particle, large and heavy enough to settle out under gravity is formed.
Gravitational Settling
This phenomenon takes place below the cloud level, when falling rain drops absorb pollutants, and is also known as washouts or scavenging.
Absorption
This process involves precipitation above the cloud level where submicron particles present in the atmosphere in the cloud serve as condensation nuclei around which drops of water may form and fallout as raindrop.
Rainout
The phenomenon in which the gaseous, liquid, or solid pollutants present in the ambient air are kept attached, generally electrostatically by a surface where they are concentrated and retained.
Adsorption
It refers to all the activities a regulatory authority undertakes to help protect human health and the environment from the harmful effects of air pollution.
Air Quality Management Process
Are tiny particles and droplets in the air that are made up of hundreds of different.
Particulate emissions.
Is a specially designed closed chamber in which the velocity of the inlet gas is transformed into spinning vortex and the particles from the gas are thrown out under the centrifugal force.
Cyclone separator
Is utilized to separate the particulate matter from the gas.
Centrifugal force
It works on the principle of electrical charging of the particulate matter and collecting it on a differently charged collecting surface.
Electrostatic Precipitators
It outs the particulate matter from the gas stream and allow clear gas to flow.
Fabric filters
Particulate matter are incorporated into liquid droplets and thus are removed from the gas steam.
Scrubbers
What are the commonly used adsorbents?
Activated carbon
Activated alumina
Silica gel
It is used to control gaseous pollutants in petrochemical, fertilizers, paint, and varnish industry.
Combustion
Transporting the pollutants over larger distances, and thus, reducing the pollution near the emission source.
- Method that is largely adopted in developing countries.
Air Quality Control by Dilution
Clean Air Act of the Philippines
Republic Act 8749
DENR
Department of Environment and Natural Resources
DoTr
Department of Transportation
DTI
Department of Trade and Industry
DoE
Department of Energy
DOST
Department of Science and Technology
PSA
Philippine Statistics Authority
LGU
Local Government Units
Fines and Penalties for Violations of Other Provisions in the Act
Not less than 10,000 but not more than 100,000 or 6 years imprisonment
Penalty for Burning of Municipal Waste
2 years & 1 day to 4 years imprisonment
Penalty for Burning Hazardous Substances and Wastes
4 years & 1 day to 6 years imprisonment
Penalties for Burning Bio-Medical Waste
4 years & 1 day to 6 years imprisonment
Penalty for Smoking in Public Places
6 months & 1 day to 1 year imprisonment or 10,000 pesos
Penalty for Manufacture, Importation, Sale, Offer for Sale, Introduction into Commerce, Conveyance or other Disposition of Leader Gasoline
3 years & 1 day to 5 years imprisonment
Penalty for Manufacture, Processing, Trade of Fuel or Fuel Additive without Prior Registration of the Fuel or Fuel Additive with the DOE
2 years & 1 day to 4 years imprisonment
Penalty for Misfuelling
1 year & 1 day to 3 years imprisonment or 20,000 pesos
Climate Change Act of 2009
Republic Act 9729
Is a comprehensive air quality management policy and program which aims to achieve and maintain healthy air for Filipinos
Clean Air Act