60 documents found, page 1 of 6

Circular Economy for Healthy Cities

The places where people live and work, consume and throw away, play a key role in the transition to the circular economy. The covid-19 crisis highlighted the unsustainable character of certain environmental and social trends, and led to a reconsideration of current production and consumption patterns, motivating green recovery. One of the most relevant aspects is related to governance and territory, especially ...

Economia circular para cidades saudáveis

Os locais onde as pessoas vivem e trabalham, consomem e desperdiçam, têm um papel fundamental na transição para a economia circular. A crise da covid-19 destacou o caráter insustentável de determinadas tendências ambientais e sociais, e levou a reconsiderar os atuais padrões de produção e consumo, motivando a recuperação verde. Um dos aspetos mais relevantes prende-se com a governação e o território, em especia...

Annual and seasonal variability of greenhouse gases fluxes over coastal urban a...

Fluxes of CO2, H2O and energy were measured continuously during a four-year period by eddy covariance, simultaneously at an urban and a suburban sites in the western coast of Portugal. The parallel measurements permitted to distinguish anthropogenic from natural CO2 emission/deposition. Natural CO2 fluxes were important in the suburban location. Anthropogenic emission of CO2 dominated the urban fluxes, being th...

Comparison of Methodologies for Assessing Desert Dust Contribution to Regional ...

Desert dust outbreaks may a ect air quality. This study estimates the importance of African dust contribution to the PM10 and PM2.5 concentrations observed in rural regional background sites in Portugal. Desert dust contribution is evaluated by two di erent approaches: Ameasurement-approach methodology based on the monthly moving 40th percentile, and a model-approach methodology based on WRF-CHIMERE simulations...

Autonomous vehicles opportunities for cities air quality

The impacts of autonomous vehicles (AV) on safety, energy and atmospheric emissions have been recognised to be important issues, but an air quality impact assessment is missing. In this study, by using a numerical modelling approach, the impact of AV on the air quality of a medium-sized Portuguese urban area was evaluated. For that, the air pollutants nitrogen oxides (NOx) and carbon dioxide (CO2) were consider...

Impact of harbour activities on local air quality: a review

Several harbour activities cause negative environmental impacts in the harbours' surrounding areas, namely the degradation of air quality. This paper intends to comprehensively review the status of the air quality measured in harbour areas. The published studies show a limited number of available air quality monitoring data in harbours areas, mostly located in Europe (71%). Measured concentrations of the main a...

ICEER2019@Aveiro: Energy and environment - challenges towards circular economy

The 6th edition of the International Conference on Energy and Environment Research, ICEER 2019, took place in the end of July 2019, at the University of Aveiro, Portugal. With most of the participants coming from academia, and a few from the professional field, ICEER series is still growing and attracting increased interest. Energy production, distribution and use are fundamental for the Sustainable Development...

Fighting climate change with circular economy

(Excerpt) Climate change has been internationally recognized as a global problem, caused by human action and intensified by national development. Global warming is its most known effect, affecting agricultural activity, increasing drought periods, and causing serious health conditions in worldwide population. Initiatives such as the IPCC have been established to prevent and mitigate climate change and global wa...

Book of abstracts of ICEER2019: The 6th International Conference on Energy and ...

The 6th edition of the International Conference on Energy and Environment Research, ICEER 2019, took place in the end of July 2019, at the University of Aveiro, Portugal. With most of the participants coming from academia, and a few from the professional field, ICEER series is still growing and attracting increased interest. Energy production, distribution and use are fundamental for the Sustainable Development...

Road traffic externalities indicator based on external costs of transport