PROFOUND INVESTIGATION OF DUST CHEMICAL COMPONENT IN INDUSTRIAL EMISSIONS FOR CORRECT ESTIMATION OF GEOECOLOGICAL IMPACT AND MONITORING

Abstract

Background. Effective management of dust emissions from industrial enterprises should be based on reliable data on emission sources and emitted components. Correct estimation of geoecological impacts exerted by dust emissions is a complicated process due to chemical diversity of the soil component in them. Aim. The aim was to test a practical approach to identifying actual ambient air pollution with solid particles in a zone influenced by an economic entity for correct estimation of impacts and monitoring of ambient air quality. Materials and methods. Samples of industrial dust emissions were analyzed with a scanning electronic high-resolution microscope (magnification was from x5 to x300,000; acceleration voltage varied between 0.3 to 30 kW) with S3400N HITACHI x-ray fluorescent device (the limit of detection was approximately 5–10 mass % and the minimum field of view was 100 µm). X-ray photographs were processed by using XRD 6000/7000 software, Version 5.21. The results obtained by calculating dispersion of the dust component were mapped with ArcView 3.2 and ArcGIS 9.3.1., GIS-platforms created by ESRI. Results. Complex investigations of dust emissions were performed at a selected enterprise and this made it possible to identify a profile of the dust component in emissions from major sources. Actual composition of dusts emitted by the analyzed enterprise was established to differ fundamentally from the data declared in the inventory lists of emissions issued by the enterprise. The results of dispersion calculations gave grounds for spotting out substances that were priority (marker) ones for the analyzed production and we also estimated actual effects produced by dust emissions on ambient air. Conclusions. The study results allow concluding that a dust emission profile is a reliable instrument for estimating actual impacts of an industrial enterprise on ambient air. It can be applied to solve tasks within setting standards, monitoring and estimating actual impacts exerted by anthropogenic dust emissions when environmental measures are being planned and developed.

Keywords

• geoecological impacts
• dust emissions
• chemical composure
• ambient air
• monitoring