Results 21 to 30 of about 2,092,600 (307)

Rapid adsorption of benzotriazole onto oxidized carbon cloth as an easily separable adsorbent

open access: yesScientific Reports, 2023
A commercial carbon cloth (CC) was oxidized by HNO3 acid and the features of the plain and oxidized CC were evaluated. The results of characterization illustrated that HNO3 oxidization duplicated the oxygen-containing functional groups and the surface ...
Emad K. Radwan   +2 more
doaj   +1 more source

On the Network Strength of Meta-Aramid Fiber Suspension and Its Relationship to Formation

open access: yesAdvances in Polymer Technology, 2022
Because of poor surface hydrophilicity, meta-aramid fibers readily form flocs by intertwining or interlacing, and this severely affects the uniformity of meta-aramid paper.
Jiulong Sha   +6 more
doaj   +1 more source

Ozone and Temperature May Hinder Adaptive Capacity of Mediterranean Perennial Grasses to Future Global Change Scenarios

open access: yesPlants, 2023
Climate warming is recognized as a factor that threatens plant species in Mediterranean mountains. Tropospheric ozone (O3) should also be considered as another relevant stress factor for these ecosystems since current levels chronically exceed thresholds
Samuel Prieto-Benítez   +6 more
doaj   +1 more source

Human health risk from hexachlorocyclohexane and dichlorodiphenyltrichloroethane pesticides, through consumption of vegetables: estimation of daily intake and hazard quotients

open access: yesJournal of Xenobiotics, 2013
People are encouraged to consume more fresh vegetables due to the high nutritional value and fibre contents in vegetables. At the same time, due to pesticidal residue in vegetables, vegetable consumption is considered as an important route of pesticides ...
Bhupander Kumar   +5 more
doaj   +1 more source

Composition, size distribution, optical properties, and radiative effects of laboratory-resuspended PM10 from geological dust of the Rome area, by electron microscopy and radiative transfer modelling [PDF]

open access: yesAtmospheric Chemistry and Physics, 2015
In this work, new information has been gained on the laboratory-resuspended PM10 fraction from geological topsoil and outcropped rocks representative of the Rome area (Latium).
A. Pietrodangelo   +4 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

Local versus Regional Contributions to PM10 Levels in the Western Mediterranean

open access: yesAerosol and Air Quality Research, 2023
In this study, PM10 daily samples were collected every day during approximately one month in winter and one month in summer, 2019. Sampling was performed simultaneously at two different locations: an urban traffic site (~80 m a.s.l.) and a regional ...
Álvaro Clemente   +5 more
doaj   +1 more source

SEASONAL AND SPATIAL VARIATION OF PM10 IN AN URBAN AREA FROM ROMANIA [PDF]

open access: yes, 2019
The cyclic variance of PM10 mass concentration in the urban area in the South-East of Romania has been analysed in the article. SE of Romania is considered to be a territory which has medium level of pollution for a period of last ten years, from 2009 ...
Dragomir Balanica, Mariana Carmelia   +5 more
core   +1 more source

Spectral pollution

open access: yesIMA Journal of Numerical Analysis, 2004
We discuss the problems arising when computing eigenvalues of self-adjoint operators which lie in a gap between two parts of the essential spectrum. Spectral pollution, i.e. the apparent existence of eigenvalues in numerical computations, when no such eigenvalues actually exist, is commonplace in problems arising in applied mathematics.
Davies, E B, Plum, M
openaire   +3 more sources

Marine Pollution [PDF]

open access: yesScience, 1971
In the editorial, "Marine pollution" (8 January 1971, page 21), the value given for the concentration of mercury found in tuna (paragraph 2, line 10, 0.5 x 10-6 part per billion) is incorrect. The correct value is 500 parts per billion.
openaire   +3 more sources

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