State of the art review on air quality monitoring

This article gives a broad overview of common air pollutants mainly occurring in metropolitan environments. Starting from volatile organic compounds (VOCs) and ending with particles matter concentration (PM). The main characteristics of air pollutants and areas of occurrence are discussed. Special attention was given to the acceptable ranges of occurring contaminants by discussing the main EU/WHO normative recommendations. The main area of review of the state of the art in air pollution monitoring was limited to the last few years. The shown direction of development of modern measurement systems towards low-cost sensors working in the structures of the Internet of Things reflects the latest development trends in monitoring of climatic parameters.