Wintertime urban air pollution in Macedonia – composition and source contribution of air particulate matter

Abstract

High air pollution episodes in most urban areas in Macedonia fill the headlines in recent years, reinforcing public perception that polluted air is by far most important environmental and health problem that urban population face nowadays. Ambient pollutants concentrations often reach dramatic levels triggering warnings and action plans that are mostly based on personal exposure reduction and hopes for changes in weather conditions, thus leaving public disappointed and confused. Recent studies show that traffic, domestic heating, natural dust and industrial activities are the main sources of PM contributing to urban pollution in European cities. However, there are significant differences between sources and the components of urban AP in different cities. While domestic heating (biomass burning) dominates the contributions to PM in Eastern Europe and in many developing countries, sea salt is the most important (natural) source of PM10 in north-western Europe. Therefore, detailed characterization (determination of size, form and chemical composition) of suspended air particulates is of crucial importance for definition of possible adverse health effects, sources allocation and applicable control measures. During the last two years (2018-2019), AMBICON team has collected and analysed suspended particulate matters from specific urban zones throughout the country. Samples were taken according to standard gravimetric method (EN 12341:2014) using a low volume sampler and 47 mm PTFE filters. Chemical composition was determined using Fluorescent X-ray Spectrometer (Shimadzu EDX-900HS) according to EPA/625/R-96/010a. Seasonal and diurnal variation were obtained from MOEPP Air Quality Portal, as much as from AMBICON independent monitoring network with in house developed ambient particulate monitors. The results demonstrate clear domination of biomass burning as primary contributor with much smaller contribution of traffic, industrial and crustal matter sources. Keywords: Particulates, Concertation, Patterns, PMF, Contributio

    Similar works