 Air quality guideline

Air quality guidelines are recommendations established by governmental or international organizations to protect human health and the environment from the potentially harmful effects of air pollutants. These guidelines typically include specific numerical values or ranges for various pollutants, which can be used as targets to inform regulatory standards, policies, and actions aimed at improving air quality. Key aspects of air quality guidelines include: 1. **Pollutants Covered**: Guidelines often focus on common air pollutants such as particulate matter (PM10 and PM2.