Monitoring and Controlling the Air Quality- Environmental Pollutants. Evaluation of Uncertainty Budget

摘要

Accurate and reliable air pollutants measurements are widely required all over the world. Measurement science is something of vital importance to all of us. The monitored pollutants, the measurement methods, the limit values, the alert thresholds and the criteria for locating and monitoring points have been established by national legislation on the protection of the atmosphere and meet the requirements stipulated by EU regulations. The paper presents the conclusions which have been drawn using statistical inference tools, based on the data collected during measurements of few air pollutants CO, SO_2, NOx. Measurements were collected for a period of 3 months, 10 days / month, using gas analysers configured with NDIR (Non - Dispersive Infrared Absorbtion) sensors. Additionaly, based on experience, the paper describes, step by step, an example of uncertainty budget evaluation of SO_2 for measuring air pollutants.