Particle Number Concentration: A Case Study for Air Quality Monitoring
نویسندگان
چکیده
Particle matter is one of the criteria air pollutants which have most considerable effect on human health in cities. Its legislation and regulation are mostly based mass. We showed here that total number particles particle concentrations different size fractions seem to be efficient quantities for quality monitoring urbanized areas. concentration (N) measurements were realized Budapest, Hungary, nine full years between 2008 2021. The datasets complemented by meteorological data pollutants. annual medians N approximately 9 × 103 cm−3. Their time trends diurnal variations similar other large continental European main sources vehicle road traffic atmospheric new aerosol formation (NPF) consecutive growth events. latter process usually regional, so it appears better assessible contribution quantification than mass concentration. It demonstrated relative occurrence frequency NPF was considerable, its mean around 20%. events increased ultrafine (UF < 100 nm) with respect regional numbers 12% 37% city center near-city background, respectively. pre-existing UF doubled event days.
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ژورنال
عنوان ژورنال: Atmosphere
سال: 2022
ISSN: ['2073-4433']
DOI: https://doi.org/10.3390/atmos13040570