Air pollution monitoring serves multiple purposes, including identifying sources of pollution, assessing its impact on health and the environment, and informing the development and implementation of control strategies.

CFCs are not typically monitored by regulatory agencies because they are not directly emitted into the air from stationary or mobile sources. They are primarily regulated under international agreements due to their role in ozone depletion.

Ambient air quality monitoring focuses on measuring the levels of pollutants in the air that people breathe, while emissions monitoring measures the amount of pollutants released from specific sources, such as industrial facilities or vehicles.

CEMS are active monitoring systems that continuously measure and record the concentration of pollutants in emissions from industrial facilities or power plants.

Nephelometers measure the scattering of light by particles in the air, which is proportional to the concentration of particles.

Gas chromatography is a technique used to separate and analyze chemical compounds in a sample, but it is not a method for collecting air samples.

QA/QC procedures are essential for ensuring the accuracy, reliability, and integrity of air pollution monitoring data.

Statistical models are not typically used for air pollution modeling, as they do not explicitly represent the physical and chemical processes that govern air pollution.

Air pollution control strategies aim to reduce emissions, improve air quality, and protect human health and the environment.

Emission limits are a type of command-and-control air pollution control strategy that sets legally enforceable limits on the amount of pollutants that can be emitted from a source.

Air pollution dispersion modeling is used to predict how air pollutants will move and disperse in the atmosphere, taking into account factors such as wind speed and direction, atmospheric stability, and terrain.

Mass spectrometry sensors are not commonly used for air pollution monitoring due to their high cost and complexity.

Primary pollutants are emitted directly from sources, such as vehicles or industrial facilities, while secondary pollutants are formed in the atmosphere through chemical reactions involving primary pollutants.

Satellite remote sensing provides global coverage of air pollution levels, can measure air pollution levels in real time, and can identify sources of air pollution.

Solar panels are not a type of air pollution control technology, as they do not remove or reduce air pollutants.