Results 21 to 30 of about 3,442,466 (290)

An absolute reference frame for nitrous oxide clumped and position-specific isotopes provided by thermal equilibration [PDF]

open access: yesAtmospheric Measurement Techniques
Clumped isotopic measurements of nitrous oxide (N2O) have the potential to offer unique constraints on the processes governing N2O production and destruction, building on the information provided by δ15N, δ18O and 15N site preference (SP).
P. M. Magyar   +10 more
doaj   +1 more source

Air pollution modelling for birth cohorts: a time-space regression model [PDF]

open access: yes, 2016
To investigate air pollution effects during pregnancy or in the first weeks of life, models are needed that capture both the spatial and temporal variability of air pollution exposures.; We developed a time-space exposure model for ambient NO2 ...
Georgette Stern   +15 more
core   +2 more sources

Eddy covariance methane flux measurements over a grazed pasture: effect of cows as moving point sources [PDF]

open access: yesBiogeosciences, 2015
Methane (CH4) from ruminants contributes one-third of global agricultural greenhouse gas emissions. Eddy covariance (EC) technique has been extensively used at various flux sites to investigate carbon dioxide exchange of ecosystems. Since the development
R. Felber   +3 more
doaj   +1 more source

THE PERFORMANCE ANALYSIS OF HEALTH, SAFETY, ENVIRONMENT, AND ENERGY INTEGRATED MANAGEMENT SYSTEM (HSEE-IMS) USING FUZZY COGNITIVE MAPPING METHOD [PDF]

open access: yesProceedings on Engineering Sciences, 2021
The performance assessment of strategic levels of an integrated management system (IMS) is critical to policy making phase of executive organizations.
Rasoul Yarahmadi   +1 more
doaj   +1 more source

Interstate air pollution study. Phase II project report. [PDF]

open access: yes, 1966
Vols. 2-3, 8 have imprint: Cincinnati, Ohio, U.S. Dept. of Health, Education and Welfare, Public Health Service, Bureau of Disease Prevention and Environmental Control, National Center for Air Pollution Control.Includes bibliographical references.v.

core   +1 more source

Automated fragment formula annotation for electron ionisation, high resolution mass spectrometry: application to atmospheric measurements of halocarbons

open access: yesJournal of Cheminformatics, 2021
Background Non-target screening consists in searching a sample for all present substances, suspected or unknown, with very little prior knowledge about the sample.
Myriam Guillevic   +6 more
doaj   +1 more source

Measurement report: 30 years of BTEX monitoring at a suburban site in Switzerland supported by additional urban VOC observations [PDF]

open access: yesAtmospheric Chemistry and Physics
Since 1994, benzene, toluene, ethylbenzene and xylene isomers (BTEX) are monitored in the ambient air at Dübendorf (DUE) in the suburban area of Zurich city in Switzerland.
Z. Le Bras   +3 more
doaj   +1 more source

Consensus on reducing health impacts of ambient fine particulate matter

open access: yes环境与职业医学
In recent years, China has achieved significant progress in controlling fine particulate matter with median aerodynamic diameter ≤2.5 μm (PM2.5) pollution.
Expert Consensus Panel on Health Protection against Air Pollution
doaj   +1 more source

Process-based VOCs Source Profiles and Contributions to Ozone Formation in Typical Organic Solvent-used Industries in Hangzhou

open access: yesAerosol and Air Quality Research, 2021
The solvent-used industry plays an important role in volatile organic compounds (VOCs) emission, which has caused an increasing concern. Herein, VOCs samples collected before and after treatments from the painting industry, printing industry and printing
Zhinian Li   +7 more
doaj   +1 more source

Impacts of Meteorology and Emissions on O3 Pollution during 2013–2018 and Corresponding Control Strategy for a Typical Industrial City of China

open access: yesAtmosphere, 2021
The air quality of Handan, a typical industrial city in China, has been significantly improved through atmospheric pollution control, except for ozone (O3) pollution.
Shiyin Yao   +4 more
doaj   +1 more source

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