Emission control refers to the strategies and technologies used to reduce the release of harmful pollutants into the atmosphere. These pollutants can come from various sources, including vehicles, industrial processes, and power plants. By implementing emission control measures, such as catalytic converters in cars or scrubbers in factories, we can minimize the impact of these emissions on air quality and public health. Governments and organizations often set regulations and standards to limit emissions from different sources. For example, the Environmental Protection Agency (EPA) in the United States establishes guidelines to ensure that industries comply with emission control measures. These efforts aim to protect the environment and promote cleaner air for everyone.