8 research outputs found

    Development of West-European PM2.5 and NO2 land use regression models incorporating satellite-derived and chemical transport modelling data

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    Satellite-derived (SAT) and chemical transport model (CTM) estimates of PM2.5 and NO2 are increasingly used in combination with Land Use Regression (LUR) models. We aimed to compare the contribution of SAT and CTM data to the performance of LUR PM2.5 and NO2 models for Europe. Four sets of models, all including local traffic and land use variables, were compared (LUR without SAT or CTM, with SAT only, with CTM only, and with both SAT and CTM). LUR models were developed using two monitoring data sets: PM2.5 and NO2 ground level measurements from the European Study of Cohorts for Air Pollution Effects (ESCAPE) and from the European AIRBASE network. LUR PM2.5 models including SAT and SAT+CTM explained ~60% of spatial variation in measured PM2.5 concentrations, substantially more than the LUR model without SAT and CTM (adjR(2): 0.33-0.38). For NO2 CTM improved prediction modestly (adjR(2): 0.58) compared to models without SAT and CTM (adjR(2): 0.47-0.51). Both monitoring networks are capable of producing models explaining the spatial variance over a large study area. SAT and CTM estimates of PM2.5 and NO2 significantly improved the performance of high spatial resolution LUR models at the European scale for use in large epidemiological studies

    Classification of natural environments to assess positive health effects of exposure in different regions of Europe

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    Environment and Health - Bridging South, North, East and West, 19-23 August 2013 in Basel, Switzerland : Abstracts of the 2013 Conference of the International Society of Environmental Epidemiology (ISEE), the International Society of Exposure Science (ISES), and the International Society of Indoor Air Quality and Climate (ISIAQ)Background: Indications exist that close contact with nature brings benefits to human health and well-being. The PHENOTYPE project will investigate the interconnections between exposure to natural outdoor environments and human health and wellbeing in North West, South and East Europe. Inconsistency and variation in indicators for green or natural space have often made it difficult to compare results from different studies, and to translate research to better integrate human health needs into land use planning and green space management. Aims: Create a consistent classification of natural environments across partner countries by combining conventional mapping with remote sensing data and aerial photography, and using considerable stakeholder engagement to minimize the potential inconsistencies. Exposure indicators will be linked with participant data to explore health effects of different types of natural environment (in different populations) and underlying mechanisms related to stress reduction/restorative function, physical activity, social interaction/cohesion and exposure to environmental hazards. Methods: The classification of natural environments will be conducted at three levels: 1. Europe-wide, using secondary data and remote sensing analysis. 2. Within participating countries, using locally-held secondary data: a. A metadata collection exercise to identify consistent classifications. b. A review of existing classifications used by stakeholders. c. Derived GIS measures. 3. ‘Quality’ audit of natural environments (primary data) Results and conclusions: The provisional hierarchical classification of natural environments (both green and blue) comprises four levels of typology, which can be further differentiated by the size, purpose, presence of water and level of access. It can also be combined with ‘quality’ items derived from a natural space audit tool and existing local data such as traffic [...]Aplinkotyros katedraVytauto Didžiojo universiteta

    Development of West-European PM2.5 and NO2 land use regression models incorporating satellite-derived and chemical transport modelling data

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    Satellite-derived (SAT) and chemical transport model (CTM) estimates of PM2.5 and NO2 are increasingly used in combination with Land Use Regression (LUR) models. We aimed to compare the contribution of SAT and CTM data to the performance of LUR PM2.5 and NO2 models for Europe. Four sets of models, all including local traffic and land use variables, were compared (LUR without SAT or CTM, with SAT only, with CTM only, and with both SAT and CTM). LUR models were developed using two monitoring data sets: PM2.5 and NO2 ground level measurements from the European Study of Cohorts for Air Pollution Effects (ESCAPE) and from the European AIRBASE network. LUR PM2.5 models including SAT and SAT+CTM explained similar to 60% of spatial variation in measured PM2.5 concentrations, substantially more than the LUR model without SAT and CTM (adjR(2): 0.33-0.38). For NO2 CTM improved prediction modestly (adjR2: 0.58) compared to models without SAT and CTM (adjR2: 0.47-0.51). Both monitoring networks are capable of producing models explaining the spatial variance over a large study area. SAT and CTM estimates of PM2.5 and NO2 significantly improved the performance of high spatial resolution LUR models at the European scale for use in large epidemiological studies. (C) 2016 Elsevier Inc. All rights reserved

    Comparing land use regression and dispersion modelling to assess residential exposure to ambient air pollution for epidemiological studies

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    Land-use regression (LUR) and dispersion models (DM) are commonly used for estimating individual air pollution exposure in population studies. Few comparisons have however been made of the performance of these methods.; Within the European Study of Cohorts for Air Pollution Effects (ESCAPE) we explored the differences between LUR and DM estimates for NO2, PM10 and PM2.5.; The ESCAPE study developed LUR models for outdoor air pollution levels based on a harmonised monitoring campaign. In thirteen ESCAPE study areas we further applied dispersion models. We compared LUR and DM estimates at the residential addresses of participants in 13 cohorts for NO2; 7 for PM10 and 4 for PM2.5. Additionally, we compared the DM estimates with measured concentrations at the 20-40 ESCAPE monitoring sites in each area.; The median Pearson R (range) correlation coefficients between LUR and DM estimates for the annual average concentrations of NO2, PM10 and PM2.5 were 0.75 (0.19-0.89), 0.39 (0.23-0.66) and 0.29 (0.22-0.81) for 112,971 (13 study areas), 69,591 (7) and 28,519 (4) addresses respectively. The median Pearson R correlation coefficients (range) between DM estimates and ESCAPE measurements were of 0.74 (0.09-0.86) for NO2; 0.58 (0.36-0.88) for PM10 and 0.58 (0.39-0.66) for PM2.5.; LUR and dispersion model estimates correlated on average well for NO2 but only moderately for PM10 and PM2.5, with large variability across areas. DM predicted a moderate to large proportion of the measured variation for NO2 but less for PM10 and PM2.5

    Development of West-European PM2.5 and NO2 land use regression models incorporating satellite-derived and chemical transport modelling data

    No full text
    Satellite-derived (SAT) and chemical transport model (CTM) estimates of PM2.5 and NO2 are increasingly used in combination with Land Use Regression (LUR) models. We aimed to compare the contribution of SAT and CTM data to the performance of LUR PM2.5 and NO2 models for Europe. Four sets of models, all including local traffic and land use variables, were compared (LUR without SAT or CTM, with SAT only, with CTM only, and with both SAT and CTM). LUR models were developed using two monitoring data sets: PM2.5 and NO2 ground level measurements from the European Study of Cohorts for Air Pollution Effects (ESCAPE) and from the European AIRBASE network. LUR PM2.5 models including SAT and SATþCTM explained 60% of spatial variation in measured PM2.5 concentrations, substantially more than the LUR model without SAT and CTM (adjR2 : 0.33–0.38). For NO2 CTM improved prediction modestly (adjR2 : 0.58) compared to models without SAT and CTM (adjR2 : 0.47–0.51). Both monitoring networks are capable of producing models explaining the spatial variance over a large study area. SAT and CTM estimates of PM2.5 and NO2 significantly improved the performance of high spatial resolution LUR models at the European scale for use in large epidemiological studiesAplinkotyros katedraVytauto Didžiojo universiteta
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