Sources of Air Pollutants
Which natural events are common sources of air pollution?
Volcanic eruptions, wildfires, and wind-blown dust.
A type of air pollution source caused by environmental events that release pollutants into the atmosphere.
Natural Sources
What is a common health problem caused by air pollution exposure?
Respiratory diseases, lung cancer, and cardiovascular issues.
It greatly affects how pollutants behave in the atmosphere. When it is high, pollutants are more likely to disperse quickly over a larger area, reducing their concentration in a single location.
Wind Speed
Which type of pollutant is released directly from a pollution source?
Primary pollutant.
What source of air pollution is associated with farming and livestock operations?
Agricultural sources.
A physical state of air pollutants consisting of fine droplets in the air from sources such as sea spray and industrial processes.
Liquid
What is the main source of urban air pollution in the Philippines?
Vehicle emissions
When this happens, a layer of warmer air settles above cooler air near the surface, effectively trapping pollutants close to the ground.
Temperature Inversion
What type of air pollution control device is used to remove gases and particulate matter by spraying them with a liquid?
Wet Scrubbers
Which human activity contributes significantly to air pollution through vehicle emissions?
Transportation.
Substances that are short-lived and quickly disperse or degrade in the environment.
Transient Pollutants
Which agency is primarily responsible for enforcing air quality regulations in the Philippines?
DENR
It plays a cleaning role in the atmosphere through a process called wet deposition.
Rain or Precipitation
What air pollution control device uses centrifugal force to separate larger particulate matter from gases?
Cyclones
What type of pollutant forms when primary pollutants react in the atmosphere?
Secondary pollutant
Give two well-known examples of solid-state air pollutants.
PM2.5 and PM10
Which city in the Philippines has the highest level of air pollution?
Pasig City
The physical landscape plays a significant role in how pollutants behave.
Topography
What are government-imposed limits on the amount of air pollution a source can emit called?
Emission standards.
What is the primary greenhouse gas emitted by livestock?
Methane (CHâ‚„)
Formed during high-temperature combustion and involved in the formation of smog and acid rain.
Nitrogen Oxides (NOx)
Which law, passed in 1999, provides a comprehensive framework for air quality management in the Philippines?
RA 8749
A condition where cooler air near the ground prevents vertical movement, trapping pollutants close to the surface.
Stable Condition
Which device uses electric charges to remove dust particles from industrial emissions?
Electrostatic precipitator.