Results 11 to 20 of about 123,269 (263)

A Graphical Tool to Estimate the Air Change Efficiency in Rooms with Heat Recovery Systems [PDF]

open access: yesSustainability, 2020
Indoor air quality in buildings must be guaranteed for the health and comfort of the occupants. In order to assess the ventilation strategy of a considered room, the parameter of the air change efficiency ( ε a ) can be used. The objective of this work is to provide designers with a graphical tool for a reliable estimate of the value of ε ...
Alberto Meiss   +3 more
openaire   +2 more sources

A detectable change in the air-sea CO2 flux estimate from sailboat measurements

open access: yesScientific Reports, 2023
Abstract The sailboat Seaexplorer collected underway sea surface partial pressure of CO 2 (pCO 2 ) data for 129 days (2018–2021), including an Antarctic circumnavigation.
Behncke, Jacqueline   +2 more
openaire   +4 more sources

A holistic modeling framework for estimating the influence of climate change on indoor air quality

open access: yesIndoor Air, 2022
The IPCC 2021 report predicts rising global temperatures and more frequent extreme weather events in the future, which will have different effects on the regional climate and concentrations of ambient air pollutants. Consequently, changes in heat and mass transfer between the inside and outside of buildings will also have an increasing impact on indoor
Tunga Salthammer   +9 more
openaire   +3 more sources

Estimating the Health and Economic Impacts of Changes in Local Air Quality

open access: yesAmerican Journal of Public Health, 2018
Objectives. To demonstrate the benefits-mapping software Environmental Benefits Mapping and Analysis Program-Community Edition (BenMAP-CE), which integrates local air quality data with previously published concentration–response and health–economic valuation functions to estimate the health effects of changes in air pollution levels and their economic ...
Martha L, Carvour   +3 more
openaire   +3 more sources

Bryomonitoring of atmospheric elements in Sphagnum sp. commonly growing bryophyte in the Indian Himalayan region of Uttarakhand

open access: yesNova Geodesia, 2023
For a range of metals originating from both natural and anthropogenic sources, bryophytes are helpful biological markers of environmental contamination. This research focuses on recent changes in air quality and uses a passive biomonitoring technique to
Supriya JOSHI, Afroz ALAM
doaj   +1 more source

Estimation of Uncertainty in Tracer Gas Measurement of Air Change Rates

open access: yesInternational Journal of Environmental Research and Public Health, 2010
Simple and economical measurement of air change rates can be achieved with a passive-type tracer gas doser and sampler. However, this is made more complex by the fact many buildings are not a single fully mixed zone. This means many measurements are required to obtain information on ventilation conditions. In this study, we evaluated the uncertainty of
Atsushi Iizuka   +2 more
openaire   +2 more sources

Examination of postmortem changes in the lungs, trachea, and bronchi in a rat model imaged with small-animal computed tomography

open access: yesFujita Medical Journal, 2023
Objectives: As less autopsies are performed, the need for postmortem computed tomography (PMCT) as an alternative is increasing. It is important to know how postmortem changes over time are reflected on CT, in order to improve the diagnostic capability ...
Takahiro Matsuyama   +9 more
doaj   +1 more source

Results of microclimate modeling in living quarters with different types of heaters [PDF]

open access: yesИнженерно-строительный журнал, 2013
The features of microclimate creation in living quarters where outside air inflow comes through ventilation valves are studied with respect to different types of heat appliances (convection heaters and radiators).
T.A. Datsyuk, Yu.P. Ivlev, V.A. Pukhkal
doaj   +1 more source

Multiple Change-Point Estimation of Air Pollution Mean Vectors

open access: yesKorean Journal of Applied Statistics, 2009
The Bayesian multiple change-point estimation has been applied to the daily means of ozone and PM10 data in Seoul for the period 1999. We focus on the detection of multiple change-points in the ozone and PM10 bivariate vectors by evaluating the posterior probabilities and Bayesian information criterion(BIC) using the stochastic approximation Monte ...
Jae-Hee Kim, Sooy-Oung Cheon
openaire   +2 more sources

Variations of Secondary PM2.5 in an Urban Area over Central China during 2015–2020 of Air Pollutant Mitigation

open access: yesAtmosphere, 2022
The lack of long-term observational data on secondary PM2.5 (SPM) has limited our comprehensive understanding of atmospheric environment change. This study develops an SPM estimation method, named Single-Tracer Approximate Envelope Algorithm (STAEA), to ...
Dingyuan Liang   +7 more
doaj   +1 more source

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