Results 31 to 40 of about 6,377,360 (326)

Costs of Chronic Waterborne Zinc Exposure and the Consequences of Zinc Acclimation on the Gill/Zinc Interactions of Rainbow Trout in Hard and Soft Water [PDF]

open access: yes, 1999
Juvenile rainbow trout were exposed to zinc in both moderately hard water (hardness 5 120 mg CaCO3/L, pH = 8.0, Zn = 150 μg/L or 450 μg/L) and soft water (hardness = 20 mg CaCO3/L, pH = 7.2, Zn = 50 μg/L or 120 μg/L) for 30 d.
Alsop, Derek H.   +3 more
core   +2 more sources

Behavior of TiO2 and CeO2 Nanoparticles and Polystyrene Nanoplastics in Bottled Mineral, Drinking and Lake Geneva Waters. Impact of Water Hardness and Natural Organic Matter on Nanoparticle Surface Properties and Aggregation

open access: yesWater, 2019
Intensive use of engineered nanoparticles (NPs) in daily products ineluctably results in their release into aquatic systems and consequently into drinking water resources.
Lina Ramírez   +3 more
semanticscholar   +1 more source

Water Quality Notes: Alkalinity and Hardness

open access: yesEDIS, 2013
This document is about the concepts of alkalinity and hardness in water quality. It explains their definitions, sources, and chemical relationships, as well as their ecological and management significance.
P. Chris Wilson
doaj   +1 more source

The Influence of Water Hardness on the Agronomic Traits of Foreign Fibre Flax Varieties in the Republic of Croatia

open access: yesTekstilec, 2022
The amount and quality of fibres depend on a whole range of factors, the most important being variety, agroecological conditions, agrotechnics and the degree of fibre flax plant maturity, the purpose for which flax is grown, retting and processing.
Jasminka Butorac   +3 more
doaj   +1 more source

Contact cleaning of polymer film solar reflectors [PDF]

open access: yes, 2015
This paper describes the accelerated ageing of polymer film reflecting surfaces under the conditions to be found during contact cleaning of Concentrating Solar Power (CSP) collectors in the presence of dust and sand particles.
Almond, Heather   +5 more
core   +3 more sources

Environmental factors other than iodine deficiency in the pathogenesis of endemic goiter in the basin of river Ganga and Bay of Bengal, India

open access: yesBLDE University Journal of Health Sciences, 2016
Background: In iodine-replete basin of the river Ganga and the Bay of Bengal, we studied iodine nutritional status of school children by goiter prevalence and their urinary iodine (UI), iodine content in edible salt, and the bioavailability of iodine ...
Amar K Chandra   +6 more
doaj   +1 more source

Rapid automatic detection of water Ca, Mg elements using laser-induced breakdown spectroscopy

open access: yesFrontiers in Physics, 2023
Ca, Mg, as the main components in water, are not only essential nutrients for life but are also an important index of water hardness. Rapid detection of the element content is of great significance for water quality evaluation and nutrient balance in ...
Yijun Zhu   +10 more
doaj   +1 more source

BENTONITE - WATER SUSPENSIONS: THE IMPACT ON THE PROTEIN STABILITY OF ISTRIAN MALVASIA WINES [PDF]

open access: yesPoljoprivreda, 2012
Bentonite is an important enological agent in the white wines production. The effect of three bentonite types (sodium, calcium and sodium / calcium) and two types of water (tap / hard; distilled / soft) was investigated on the doses of bentonite required
Tomislav Plavša, Ingrid Palman
doaj  

Geo-spatial distribution of hydrological nephrotoxic characteristics in Kalawewa and Tissawewa reservoirs in Anuradhapura, Sri Lanka

open access: yesEQA, 2021
Reservoirs are one of the major water resources subjected to different forms of pollution due to anthropogenic activities. Heavy metals and water hardness are a particular concern due to their potential toxic effect and bio-accumulate ability. Therefore,
Shermila Botheju   +3 more
doaj   +1 more source

Sanitization Efficacy of Slightly Acidic Electrolyzed Water against pure cultures of Escherichia coli, Salmonella enterica, Typhimurium, Staphylococcus aureus and Bacillus cereus spores, in Comparison with Different Water Hardness

open access: yesScientific Reports, 2019
The Influence of water source on the production of slightly acidic electrolyzed water (SAEW) and its sanitization efficacy were investigated. Two different water sources (tap water (TW) and underground water (UGW)) were applied to produce slightly acidic
Hyun-ji Kim   +3 more
semanticscholar   +1 more source

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