Abstract
The current paper aims to determine the actuality of the optical method of measuring PM10 dusts powders compared to the reference method (gravimetric method). According to the Integrated National Plan in the field of Energy and Climate Change 2021-2030, Romania must implement a program to reduce impact on atmosphere, including air quality monitoring, thus leading to an increase in the number of monitoring points and an increase in the number of samples required for monitoring. Currently, PM10 dust monitoring stations use the gravimetric method, consisting in absorbing a known volume of air on filters and weighing the dust deposited on them. As the use of this method requires a minimum of 3 days, it is necessary to apply an alternative measuring method, with short response time, namely the optical method. Parallel experimentation of the two measuring devices that use different principles was performed in several series of measurements at an economic agent that has the obligation to monitor dust at premises borders. Results obtained from comparison of the two devices can support future researchers in order to find limitations of the optical method of measuring PM10 dusts and to validate the method, in order to use it routinely.
Highlights
Parallel experimentation of the two measuring devices that use different principles was performed in several series of measurements at an economic agent that has the obligation to monitor dust at premises borders
During 17 ÷ 21.02.2021, comparative measurements were performed with the two devices, namely the reference gravimetric device LVS-PM10 and the optical device FIDAS, within the industrial premises of an economic unit, where heat treatment technology of metallic, non-metallic and other materials parts is applied, from whose production hall’s chimneys gases and powders were evacuated
The current paper presents operating principles of the LVS and the FIDAS 200 devices
Summary
The ISO 7708/2000 standard defines the sampling conditions for suspended dust from the environment and from workplaces, in order to assess as accurately as possible their impact on human health and the environment. The gravimetric method of determining suspension dust is a simple and safe method, giving the possibility to directly determine the mass of airborne particles. It allows accurate representation of the danger to human health in relation to the mass of dust inhaled, regardless of the composition and dispersion of suspended particles. A standardized method of gravimetric measurement for the determination of PM10 or PM2.5 fraction of particulate matter in the environment", specifies requirements and performance for samplers of dust hazardous to human health, PM10 and PM2.5, in accordance with Council Directive 96/62/EC and the Daughter Directive. The amount of air circulated through the device is ensured by a vacuum pump and recorded by a metrologically verified meter
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