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Veröffentlichung Ultrafine Particles Pollution and Measurements(2016) Kumar, P.; Birmili, Wolfram; Wiedensohler, A.; Quincey, P.; Hallquist, M.Veröffentlichung Occurrence and coupling of heat and ozone events and their relation to mortality rates in Berlin, Germany, between 2000 and 2014(2019) Fenner, Daniel; Holtmann, Achim; Krug, AlexanderEpisodes of hot weather and poor air quality pose significant consequences for public health. In this study, these episodes are addressed by applying the observational data of daily air temperature and ozone concentrations in an event-based risk assessment approach in order to detect individual heat and ozone events, as well as events of their co-occurrence in Berlin, Germany, in the years 2000 to 2014. Various threshold values are explored so as to identify these events and to search for the appropriate regressions between the threshold exceedances and mortality rates. The events are further analyzed in terms of their event-specific mortality rates and their temporal occurrences. The results reveal that at least 40% of all heat events during the study period are accompanied by increased ozone concentrations in Berlin, particularly the most intense and longest heat events. While ozone events alone are only weakly associated with increased mortality rates, elevated ozone concentrations during heat events are found to amplify mortality rates. We conclude that elevated air temperatures during heat events are one major driver for increased mortality rates in Berlin, but simultaneously occurring elevated ozone concentrations act as an additional stressor, leading to an increased risk for the regional population. Quelle: https://www.mdpi.comVeröffentlichung Phenomenology of ultrafine particle concentrations and size distribution across urban Europe(2023) Trechera, Pedro; Garcia-Marlès, Meritxell; Liu, Xiansheng; Gerwig, HolgerThe 2017-2019 hourly particle number size distributions (PNSD) from 26 sites in Europe and 1 in the US were evaluated focusing on 16 urban background (UB) and 6 traffic (TR) sites in the framework of Research Infrastructures services reinforcing air quality monitoring capacities in European URBAN & industrial areaS (RI-URBANS) project. The main objective was to describe the phenomenology of urban ultrafine particles (UFP) in Europe with a significant air quality focus.The varying lower size detection limits made it difficult to compare PN concentrations (PNC), particularly PN10-25, from different cities. PNCs follow a TR>UB>Suburban (SUB) order. PNC and Black Carbon (BC) progressively increase from Northern Europe to Southern Europe and from Western to Eastern Europe. At the UB sites, typical traffic rush hour PNC peaks are evident, many also showing midday-morning PNC peaks anti-correlated with BC. These peaks result from increased PN10-25, suggesting significant PNC contributions from nucleation, fumigation and shipping.Site types to be identified by daily and seasonal PNC and BC patterns are: (i) PNC mainly driven by traffic emissions, with marked correlations with BC on different time scales; (ii) marked midday/morning PNC peaks and a seasonal anti-correlation with PNC/BC; (iii) both traffic peaks and midday peaks without marked seasonal patterns. Groups (ii) and (iii) included cities with high insolation.PNC, especially PN25-800, was positively correlated with BC, NO2, CO and PM for several sites. The variable correlation of PNSD with different urban pollutants demonstrates that these do not reflect the variability of UFP in urban environments. Specific monitoring of PNSD is needed if nanoparticles and their associated health impacts are to be assessed. Implementation of the CEN-ACTRIS recommendations for PNSD measurements would provide comparable measurements, and measurements of <10 nm PNC are needed for full evaluation of the health effects of this size fraction. © AuthorsVeröffentlichung Veröffentlichung Regulations and measures for limiting emissions from non-road mobile machinery in Europe(2022) Jahn, HelgeNon-road mobile machinery (NRMM) are transportable machines and vehicles that are not intended for transporting people or goods by road. Compared to road transport, the number of machines in the NRMM sector in Germany is small. More than 1 million agricultural tractors, about 250,000-400,000 construction machines with more than 19 kW and a fleet of more than 4,000 inland waterway vessels (more than 18,000 across Europe) are responsible for a significant amount for high particulate and NOx emissions. Regulation (EU) No. 2016/1628 [1] comprehensively amended the exhaust emissions legislation for non-road mobile machinery. An extraordinarily wide range of machinery and equipment, including lawn mowers, chain saws, construction machinery, generators, inland waterway vessels and rail vehicles, falls under the regulation with the current exhaust stage V. In addition, the focus of the supplementary regulations (EU) 2017/655 [2] and (EU) 2018/989) [3] is the monitoring of emissions during actual operation of the machine (ISM-In Service Monitoring). The standards of Regulation (EU) No. 2016/1628 [1] are adopted almost completely by the United Nations Economic Commission for Europe (UNECE) in UNECE Regulation 96 [15], with the exception of the provisions for engines of inland waterway vessels and for rail vehicles. In Germany, market surveillance of mobile machinery and equipment falls under the responsibility of the federal states with their competent market surveillance authorities. Market surveillance is carried out according to the national market surveillance strategy for the years 2022-2025 according to Article 13 of Regulation (EU) 2019/1020 [4]. There is a great need for harmonization among manufacturers for uniform rules for the retrofitting of diesel particulate filters, as there is a wide range of certification options for exhaust aftertreatment systems. In addition to air pollution control measures, noise protection is playing an increasingly important role, especially with regard to construction noise. For 57 different types of machinery and equipment, noise emission requirements for placing on the market are therefore specified in accordance with Directive 2000/14/EC ("Outdoor Directive") [5]. The Outdoor Directive contains regulations on the measurement, labeling and, where applicable, compliance with limits of noise emissions emitted into the environment by municipal vehicles, gardening and landscaping equipment and thus serves to curb immissions. According to Directive 2006/42/EC ("Machinery Directive") [6], in addition to the requirements for machine safety, a machine must also comply with the state of the art for noise reduction, especially at the source. © 2022, VDI Verlag GMBH. All rights reserved.