Results 81 to 90 of about 21,286 (231)

Direct and indirect photolysis of triclocarban in the presence of dissolved organic matter

Elementa: Science of the Anthropocene, 2015
Photolysis is an important attenuation pathway for the removal of wastewater effluent organic micropollutants from surface waters. In this work, direct and indirect processes leading to the degradation of the disinfectant, triclocarban were studied ...
Tamara D. Trouts, Yu-Ping Chin
doaj   +1 more source

Underwater optical wireless communications : depth dependent variations in attenuation [PDF]

, 2013
Depth variations in the attenuation coefficient for light in the ocean were calculated using a one-parameter model based on the chlorophyll-a concentration Cc and experimentally-determined Gaussian chlorophyll-depth profiles.
Green, Roger, Johnson, Laura J., Leeson, Mark S.   +2 more
core   +1 more source

Untangling nutrient co‐regulation of ombrotrophic peatland development

Boreas, EarlyView.
Multi‐method (FTIR, FT‐NIR and TGA) approaches characterizing the organic peat constituents at Holcroft Moss reveal a record of switches that reflect broadly hydroclimate variability governing the decomposition patterns. There are periods, however, where hydroclimate does not fully explain the variability observed and instead changes appear linked to ...
Richard C. Chiverrell, Daniel N. Schillereff, Fiona E. Russell, Julie Valentine, Jason R. Kirby, David M. Wilkinson, John F. Boyle   +6 more
wiley   +1 more source

Joint effects of elevated copper and temperature in juvenile Tambaqui exposed in black and white waters of the Amazon

Journal of Fish Biology, EarlyView.
Abstract This study aimed to investigate how exposure to elevated water temperature and metal concentration jointly affect the physiology of Amazonian fish. Aboard a research vessel in the Amazon, we evaluated the effects of water temperature (river T°C at 31.5°C and a + 4°C increase to 35.5°C) and of 3‐h copper (Cu) exposure (up to 600 μg/L) in ...
Anne Crémazy, Carolyn Morris, Susana Braz‐Mota, Chris M. Wood, Rafael M. Duarte, Ora E. Johannsson, Adalberto L. Val   +6 more
wiley   +1 more source

Propriedades ácido-base e de complexação de ácidos húmico e fúlvico isolados de vermicomposto Acid/base and complexation properties of humic and fulvic acids isolated from vermicompost

Química Nova, 2007
Proton binding properties of humic and fulvic acids were studied by potentiometric titration. Carboxylic groups were the predominant ionizable sites in comparison to phenolic and amine groups.
Sandro de Miranda Colombo, Luciana Bagdeve de Oliveira dos Santos, Jorge Cesar Masini, Gilberto Abate   +3 more
doaj   +1 more source

Fluorescence Analysis for Multi-Site Aluminum Binding to Natural Organic Matter [PDF]

, 1998
Natural organic matter (NOM) samples isolated from different water sources in Norway were compared using their fluorescence properties. Fluorescence surfaces were observed at pH 4.36 and deconvoluted using SIMPLISMA (Windig and Guilment 1991). There were
Kramer, James R., Smith, D. Scott
core   +1 more source

Investigating the biological properties of carbohydrate derived fulvic acid (CHD-FA) as a potential novel therapy for the management of oral biofilm infections. [PDF]

, 2013
Background: A number of oral diseases, including periodontitis, derive from microbial biofilms and are associated with increased antimicrobial resistance.
A Ahmad, CE van Rensburg, CF Carson, CG Jones, CG Pierce, Christopher J Nile, Colin Murray, D Herrera, David F Lappin, E Berker, Emma Millhouse, G Ramage, G Ramage, Gordon Ramage, J Pratten, JJ Gandy, JM ten Cate, K Smith, K Yamakami, KJ Livak, L Sherry, Leighann Sherry, M Quirynen, MH Najafi, MN Pemberton, O Turkoglu, R Peyyala, R Peyyala, R Sabi, S Kirchner, Shauna Culshaw, SL Erlandsen, SM Soto, Y Houri-Haddad, Y Liu   +34 more
core   +2 more sources

Acid-base Properties of Modified Peat Fulvic Acid

Procedia Chemistry, 2014
AbstractThe Effect of Mechanochemical modification on the acid-base properties of fulvic acid peat has been studied. It is found that modifying reagent CS(NH2)2 increases the amount of aromatic fragments and has no effect on the depletion of functional groups.
Maltseva, E., Shekhovtsova, Natalia Sergeevna, Glyzina, Tatiana Svyatoslavovna   +2 more
openaire   +2 more sources

Current Knowledge on Phytoremediation Potential of Industrial Hemp (Cannabis sativa L.) for PFAS and Heavy Metal Contaminated Soils

Remediation Journal, Volume 36, Issue 2, Spring 2026.
ABSTRACT This review synthesizes current research on the phytoremediation potential of industrial hemp (Cannabis sativa L.) for heavy metals, including arsenic, aluminium, mercury, copper, lead, cadmium, nickel, and zinc, as well as per‐ and polyfluoroalkyl substances (PFAS), commonly referred to as “forever chemicals.” A structured and transparent ...
Omid Ansari, Luca De Prato
wiley   +1 more source

Analysis of photochemical and dark glyoxal uptake: Implications for SOA formation [PDF]

, 2011
The dependence of glyoxal uptake onto deliquesced ammonium sulfate seed aerosol was studied under photochemical (light + hydroxyl radical (OH)) and dark conditions.
Chan, A. W. H., Chhabra, P. S., Galloway, M. M., Keutsch, F. N., Loza, C. L., Seinfeld, J. H., Yee, L. D.   +6 more
core   +1 more source