Papers by Manuel Feliciano
Fenómenos de dispersão atmosférica podem ser avaliados através de fotografia aérea. Como a neblin... more Fenómenos de dispersão atmosférica podem ser avaliados através de fotografia aérea. Como a neblina provoca a dispersão da luz, os fenómenos de haze, causados por poluição, poderão ser avaliados por imagens aéreas. Com este trabalho pretendeu-se avaliar a transparência da atmosfera através de detecção remota e comparar essa informação com os valores recolhidos no terreno à mesma hora e data. Isso possibilitou estabelecer um método expedito de detecção de haze atmosférico e estabelecer relações de causa efeito entre o haze e a poluição atmosférica. Avião Cessna 172 com plataforma para equipamento fotográfico .
The influence of domestic heating systems in indoor air quality in homes of a region of Northeastern Portugal
Progress in Industrial Ecology, An International Journal, 2022
Revista de Ciências Agrárias, 2017
Objetivos e âmbito A Revista de Ciências Agrárias publica artigos técnico-científicos e revisões ... more Objetivos e âmbito A Revista de Ciências Agrárias publica artigos técnico-científicos e revisões bibliográficas, inéditos, no âmbito das OêT.as Agrárias e afins, em línguas portuguesa, inglesa ou espanhola. A revista acolhe submissões de trabalhos realizados em qualquer parte mundo e aceita originais de sócios e não sócios da SCAP Os critérios de aceitação de manuscritos para publicação são a originalidade, cia, rigor dentífico e clareza de apresentação.
Atmosphere, Jun 23, 2023
Several studies have evaluated PM concentrations in single specific microenvironments as a measur... more Several studies have evaluated PM concentrations in single specific microenvironments as a measure of exposure in the entire house. In this study, PM 10 was monitored at the same time in three microenvironments (bedroom, living room, and kitchen) from three dwellings located in a small inland town of the Iberian Peninsula to assess whether exposure varies significantly between them. Real-time optical instruments and low-volume gravimetric samplers were employed. A multiwavelength absorption instrument was used to determine black carbon (BC) concentrations on the filters. The Multiple-Path Particle Dosimetry Model (MPPD) was applied to evaluate the deposition of PM 10 and BC in the airways of adults. For all dwellings, the highest PM 10 concentrations were recorded in bedrooms (B1 = 22.7 µg m -3 ; B2 = 19.5 µg m -3 ; and B3 = 68.1 µg m -3 ). Houses 1 and 3 did not show significant differences between microenvironments. This did not happen in house 2, suggesting that ventilation is a determining factor for concentrations. BC originated mainly from fossil fuel emissions (90%), while biomass burning represented a minor contribution (10%). MPPD showed that PM 10 is predominantly deposited in the head region (≥85% of the total dose), while BC is mainly deposited in the pulmonary region (14%). Higher doses were estimated for males than for females.
Assessment of thermal comfort and indoor air quality in an operating theatre environment
Progress in Industrial Ecology, An International Journal, 2022
Aerobiologia, 2021
The objective of this study was to evaluate physical-chemical and microbial indicators of indoor ... more The objective of this study was to evaluate physical-chemical and microbial indicators of indoor air quality in three nursing houses (NHs) located in rural areas of the northeast of Portugal. The parameters were measured during two campaigns (winter and summer), twice a day, and in four distinct spaces for spatial variability assessment: dining room, living room, double bedroom and outdoor of the NHs. Physical-chemical indicators were assessed by using a Graywolf IQ 610 probe. Airborne microbial levels were evaluated by direct impaction to the culture media, and subsequently, the microorganisms were identified molecularly. Mean concentrations of physical-chemical (with the exception of total volatile organic compounds, TVOCs) and microbial indicators did not exceed the legal limits. Overall, in all NHs, the indoor-to-outdoor (I/O) concentration ratios of chemical and biological pollutants were B 1 in the summer, while in the winter were [ 1. Bacillus, Micrococcus and Staphylococcus were the dominant bacterial genera, and Aspergillus, Cladosporium and Penicillium were the dominant fungal genera. The diversity of species was higher in summer. The main results suggest that a good air quality prevails in all studied spaces, although conditions less desirable have been identified in winter, indicating the need to deepen the study of air quality in these places, since these are occupied by elderly people who are more susceptible to infections.
Dry deposition of ozone and sulphur dioxide over low vegetation in moderate southern European weather conditions. Measurements and modelling
Physics and chemistry of the earth, Oct 1, 1996
... Erisman, JW, Evaluation of a surface resistance parameterization of sulphur dioxide, Atmosphe... more ... Erisman, JW, Evaluation of a surface resistance parameterization of sulphur dioxide, Atmospheric Environment, 28, 16, 25832594, 1994. ... GUsten, H., Heinrich, G., M0nnich, E., Sprung, D., Weppner, J., Ramadan, AB, Ezz ElDin, MRM, Ahmed, DM and Hassan, GKY, Online ...
Atmospheric Environment, Jul 1, 2001
dry deposition was studied over short vegetation, in Portugal, by means of the concentration grad... more dry deposition was studied over short vegetation, in Portugal, by means of the concentration gradient method. The experimental study involved one "rst phase of long-term measurements carried out in a grassland and, subsequently, a second period of several 1997 intensive "eld campaigns performed in three places representing di!erent climate and surface conditions. Temporal and spatial patterns of dry deposition parameters show that downward #uxes of SO are by some extent a!ected by surface processes. Median R varied from 140 s cm\ to values around 200 s cm\, in a wide range of environmental conditions. Stomatal uptake is an important sink when vegetation is biologically active, but its contribution is e!ectively low when compared with non-stomatal mechanisms, especially when the surface is wet. Under dry conditions R increases by a factor of two, but SO deposition rates then still are signi"cant. The parameterisation of the surface resistance for SO proved to be di$cult, but < derived with the Erisman parameterisation (Erisman et al., Atmos. Environ. 28 (16) (1994) 2595) compared best with measured values, at low time resolution scale and especially under moisture conditions.
Twenty years ago, Dr. T. Crow and Prof. B. Anko initiated a proposal to establish a new working p... more Twenty years ago, Dr. T. Crow and Prof. B. Anko initiated a proposal to establish a new working party (WP) within the Division 8 of IUFRO, known as landscape ecology. Back then, the field was in its most rapid growth period with many unknowns. Quite a few scholars challenged us about whether this young discipline was science. This challenge was partially important because landscape ecology has strong components and commitments to managers and policymakers. Today, landscape ecology is matured with solid principles and implementations in resource management. Many members of the WP made significant contributions to advance this field for its recognition. At the first international conference in 1990, there were a small handful of participants. After the announcement of this conference, over 400 abstracts were submitted. By August 6, 2010, there were at least 233 registered individuals from 44 countries. Previous bi-annual conferences had been held in the United States, Japan, Italy, Canada and China. In the last decade, the WP also paid much attention to publishing the papers presented at our bi-annual conferences. Several books and special issues based on these conferences have been published. The WP is now soliciting proposals for future conferences. Please contact any of the committee members during the conference to discuss your interests and plans. One particular effort made by conference organizers and the WP committee is to support students. We believe that student participation is vital for both the science of landscape ecology and the growth of the WP. In 2008, we offered travel fellowships to over 28 graduate students. This year, over 20 individuals received similar support. We would like to offer special thanks to Dr. Thomas Crow for his leadership since 1990. The WP has grown to have a permanent Webpage (
Atmospheric Environment, 2000
Ozone dry deposition measurements were carried out during approximately one year over a #at grass... more Ozone dry deposition measurements were carried out during approximately one year over a #at grass "eld in Portugal. The results show prominent diurnal and seasonal patterns in deposition #ux, dry deposition velocity and surface resistance, especially for the daytime period. Dry deposition velocities vary diurnally from a minimum of 0.1 cm s\, during the night to a maximum of 0.2}0.5 cm s\ during the day. The observed canopy resistance (R ) varies from values higher than 500 s m\, at night, to a minimum of 200 s m\, around noon. Seasonal variation is characterised by daytime R values much larger in summer than in winter and spring, while nighttime values do not show any evident seasonal pattern. This behaviour can be ascribed to the stomatal intake, which represents the most important controlling factor on ozone dry deposition. The Wesely parameterisation scheme of surface resistance predicts R diurnal cycles reasonably well. However, the observed canopy resistance seasonal cycle is completely di!erent from Wesely predictions, since season parameters in Wesely's parameterisation were de"ned for a vegetation growing cycle di!erent from that prevailing in our conditions.
International Forestry Review, Mar 1, 2016
A study in a small city in Portugal was conducted to improve the understanding of the role of woo... more A study in a small city in Portugal was conducted to improve the understanding of the role of wood energy in the residential energy services in small cities in Europe, the factors affecting the use of wood consumption in households, and how changes in consumption drivers affect forest resources. The hypothesis that small cities in Europe have wood energy consumption much larger than expected was analysed based on survey data collection. Drivers were analysed through statistical modelling. Wood, used in 42% of households, represented 43% of the city's final energy consumption. The probability of wood energy use depended of resident's age, construction type, area and year. The amount of wood used was explained by resident's education, construction type and age, and energy function. Changes in drivers suggest a decrease in wood demand in the near future although new energy products and changes in energy use can balance this trend.
Nighttime–daytime PM10 source apportionment and toxicity in a remoteness inland city of the Iberian Peninsula
Atmospheric Environment
Ambient concentrations and dosimetry of inhaled size-segregated particulate matter during periods of low urban mobility in Bragança, Portugal
Atmospheric Pollution Research
The influence of domestic heating systems in indoor air quality in homes of a region of northeastern Portugal
Progress in Industrial Ecology, An International Journal
Avaliação das percepções e atitudes socias relativamente aos espaços verdes da cidade de Bragança
FCT/MCTE
Dispersão atmosférica na cidade de Bragança com recurso à detecção remota
Fundacao para a Ciencia e Tecnologia (FCT) e pelo Fundo Europeu para o Desenvolvimento Regional (... more Fundacao para a Ciencia e Tecnologia (FCT) e pelo Fundo Europeu para o Desenvolvimento Regional (FEDER)
Dry Deposition Of Trace Atmospheric Contaminants: Results From The Madrid Intercomparison Campaign
Indicadores de realização na estrutura verde da cidade de Bragança
Indicadores de avaliação ей esíratiira verde da cidade de Bragança Gonçalves*, A., Carvalho, A., ... more Indicadores de avaliação ей esíratiira verde da cidade de Bragança Gonçalves*, A., Carvalho, A., Velóse. M., Miranda, С, Rodrigues, О., Nunes, L,, Castro, JP e Feliciano, M. Escola Superior Agrária do instituía Politécnico de Bragança Campas de Santa Apolo/ria - ...
Uploads
Papers by Manuel Feliciano