Results 21 to 30 of about 5,147,496 (260)

Controlling Legionella pneumophila in Showerheads: Combination of Remedial Intervention and Preventative Flushing

open access: yesMicroorganisms, 2023
Shock chlorination and remedial flushing are suggested to address Legionella pneumophila (Lp) contamination in buildings or during their (re)commissioning. However, data on general microbial measurements (adenosine tri-phosphate [ATP], total cell counts [
Marianne Grimard-Conea   +1 more
doaj   +1 more source

Understanding soil selenium accumulation and bioavailability through size resolved and elemental characterization of soil extracts

open access: yesNature Communications, 2022
Selenium is essential for human health and mainly delivered via terrestrial foodstuffs. An advanced characterization of selenium chemical forms shows that organic matter increases its accumulation in soils but could limit its supply to ...
Julie Tolu   +8 more
doaj   +1 more source

Conquering the Outdoors with On-site Mass Spectrometry

open access: yesCHIMIA, 2014
In recent years, mass spectrometers with a membrane inlet separating gases from water for final analysis have been used successfully for the on-site quantification of dissolved gases in surface waters.
Lars Mächler   +4 more
doaj   +1 more source

Evaluation of environmental factors and microbial community structure in an important drinking-water reservoir across seasons

open access: yesFrontiers in Microbiology, 2023
The composition of microbial communities varies in water and sediments, and changes in environmental factors have major effects on microbiomes. Here, we characterized variations in microbial communities and physicochemical factors at two sites in a large
Jie Feng   +16 more
doaj   +1 more source

Contamination and sources of polychlorinated naphthalenes in the surface sediments of Chaobai River, China

open access: yesEcotoxicology and Environmental Safety, 2022
In aquatic systems, sediment is both a sink for persistent organic pollutants (POPs) and a potential source of POPs release. Consequently, it is important to understand the pollution characteristics and sources of polychlorinated naphthalenes (PCNs) as ...
Yanjun Du   +4 more
doaj   +1 more source

Hybrid Hollow Fiber Nanofiltration–Calcite Contactor: A Novel Point-of-Entry Treatment for Removal of Dissolved Mn, Fe, NOM and Hardness from Domestic Groundwater Supplies

open access: yesMembranes, 2019
Groundwater (GW) is one of the main potable water sources worldwide. However, the presence of undesirable compounds and particularly manganese (Mn) and iron (Fe) (mainly co-existing in GWs) are considered as objectionable components of potable water for ...
Maryam Haddad, Benoit Barbeau
doaj   +1 more source

Fluorine in drinking water [PDF]

open access: yesJournal of Hygiene, 1943
The modern study of the problem of fluorosis (chronic fluorine poisoning) became possible when an Italian, Stefano Chiaie, described, as quoted by Eager (1901), an unsightly dental dystrophy, now known as ‘mottled teeth’. The efforts to trace its aetiology have been ceaselessly continued ever since, mainly by American investigators. Outstanding amongst
L, Spira, F H, Grimbleby
openaire   +2 more sources

Transient Potential Profiling for Rapid Calcium Ion Quantification: Eliminating Conditioning Time in Solid-Contact Ion-Selective Electrodes

open access: yesBiosensors
Traditional solid-contact ion-selective electrodes (SC-ISEs) are severely constrained by a long-standing thermodynamic bottleneck, which requires hours of pre-conditioning and stabilization to establish a stable phase-boundary potential. To fundamentally
Kaijie Zheng   +7 more
doaj   +1 more source

The Phragmites Root-Inhabiting Microbiome: A Critical Review on Its Composition and Environmental Application

open access: yesEngineering, 2022
As widespread wetland plants, Phragmites play a vital role in water purification and are widely utilized in constructed wetlands (accounting for 15.5% of applied wetland plants) as a natural alternative to wastewater treatment.
Donglin Wang, Yaohui Bai, Jiuhui Qu
doaj   +1 more source

A national-scale database of groundwater level data for Switzerland

open access: yesScientific Data
Groundwater is a vital component of the global supply of freshwater, playing a critical role for human populations, agriculture, and ecosystems. Due to the complex interactions between groundwater, surface water, climate, and human activity, these ...
Raoul A. Collenteur   +3 more
doaj   +1 more source

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