Untitled Flashcards Set

What are the two types of air pollutants?

Primary and secondary pollutants.

What major source contributes to many air pollutants?

Burning fossil fuels.

What is SOx an abbreviation for?

Sulfur oxides, such as SO2 (sulfur dioxide).

What is NOx an abbreviation for?

Nitrogen oxides, such as NO2, primarily from cars.

What significant legislation regulates many air pollutants?

The Clean Air Act (CAA).

What is photochemical smog formed from?

The reaction of NOx with oxygen and sunlight to form photochemical oxidants.

What are VOCs and where can they be found?

Volatile organic compounds found in gasoline, formaldehyde, varnishes, and tree sap.

What is acid deposition caused by?

Nitrogen oxides (NOx) and sulfur oxides (SOx) creating secondary pollutants.

How does acid rain affect the environment?

Can lead to acidification of soils and water bodies, damage to trees, and corrosion of buildings.

What is a common indoor air pollutant that is radioactive?

Radon-222.

What can exposure to radon potentially lead to?

Lung cancer.

What is noise pollution?

Sound at a level that can cause hearing loss and physiological stress.

What are common sources of noise pollution?

Traffic, construction, domestic activity, aircraft, and industrial activity.

What is the function of catalytic converters in vehicles?

To convert NOx and CO to less harmful chemicals.

What do scrubbers do?

Remove pollutants to keep them out of the atmosphere.

What is the environmental impact of noise pollution on animals?

Altered behavior, relocation, and changes in migration routes.

What is particulate matter (PM)?

A mixture of solid particles and liquid droplets found in the air, categorized by size.

What are the health effects of particulate matter exposure?

Can cause respiratory issues, cardiovascular diseases, and exacerbate asthma.

What are heavy metals in the context of air pollution?

Elements like lead, mercury, and cadmium that can be toxic at low concentrations.

What is ground-level ozone?

A harmful air pollutant formed when NOx and VOCs react in the presence of sunlight.

What is the purpose of air quality standards?

To protect public health and the environment by limiting pollutant concentrations.

What role do trees play in air quality?

Trees can absorb CO2 and other pollutants, improving air quality.

What are industrial emissions?

Gases or particulate matter released into the atmosphere from factories.

What technology is used to reduce emissions from power plants?

Flue gas desulfurization systems, which remove SOx from exhaust gases.

What is the relationship between urbanization and air pollution?

Urbanization often increases traffic and industrial activity, contributing to higher pollution levels.

What is an alternative energy source that reduces air pollution?

Wind, solar, and hydroelectric power, which produce little to no emissions.

How do air pollutants affect human health?

Air pollutants can cause respiratory diseases, cardiovascular issues, and exacerbate conditions like asthma.

What role does the National Ambient Air Quality Standards (NAAQS) play?

NAAQS sets limits on air pollutant concentrations to protect public health and the environment.

What are the effects of climate change on air quality?

Climate change can worsen air quality by increasing ground-level ozone formation and altering weather patterns.

How can individuals contribute to reducing air pollution?

Individuals can reduce air pollution by using public transportation, conserving energy, and minimizing waste.

What is the relationship between socio-economic status and exposure to air pollution?

Lower socio-economic groups often face higher exposure to air pollution due to proximity to industrial areas and less access to green spaces.

What are the sources of indoor air pollution?

Sources include tobacco smoke, household cleaning products, construction materials, and inadequate ventilation.

How can urban planning improve air quality?

Urban planning can integrate green spaces, promote public transport, and reduce traffic congestion, leading to better air quality.

What is the significance of monitoring air quality?

Monitoring air quality helps identify pollution hotspots and informs policy decisions to protect public health.

How does weather affect air pollution levels?

Weather conditions like temperature inversions can trap pollutants close to the ground, worsening air quality.

What are the implications of air quality on economic productivity?

Poor air quality can lead to health problems that reduce workforce productivity and increase healthcare costs.