Results 11 to 20 of about 1,538,323 (350)

Variability and Heavy Metal Pollution Levels in Water and Bottom Sediments of the Liwiec and Muchawka Rivers (Poland)

Water, 2023
In recent years, human impact on the Earth’s ecological environment has become increasingly visible, with serious negative consequences. One of the most important pollutants are heavy metals which can easily bind to sediments. Due to their toxic behavior,
M. Kluska, J. Jabłońska
semanticscholar   +1 more source

Microbiomes in the Challenger Deep slope and bottom-axis sediments

Nature Communications, 2022
Hadal trenches are the deepest and most remote regions of the ocean. The 11-kilometer deep Challenger Deep is the least explored due to the technical challenges of sampling hadal depths.
Ying-Li Zhou, P. Mara, G. Cui, V. Edgcomb, Yong Wang   +4 more
semanticscholar   +1 more source

Distribution of polycyclic aromatic hydrocarbons (PAHs) in the bottom sediments of a dam reservoir, their interaction with organic matter and risk to benthic fauna

Journal of Soils and Sediments, 2021
The aims of the study were to investigate the interaction between fractions of organic matter and polycyclic aromatic hydrocarbons (PAHs) in bottom sediments and to use mussels as passive biomonitors and consensus-based sediment quality guidelines for ...
A. Baran, A. Klimkowicz‐Pawlas, Aleksandra Ukalska‐Jaruga, M. Mierzwa-Hersztek, K. Gondek, Magdalena Szara-Bąk, M. Tarnawski, I. Spałek   +7 more
semanticscholar   +1 more source

The beginning of the movement of bottom sediments in an unsteady flow

E3S Web of Conferences, 2021
This article discusses the problems of determining the friction parameter and non-eroding conditions in a wave flow are considered from the standpoint of an approach using a critical dynamic speed.
S. Eshev, Isroil Gaimnazarov, Shakhboz Latipov, Nurbek Mamatov, F. Sobirov, I. Rayimova   +5 more
semanticscholar   +1 more source

Physicochemical Properties of Bottom Sediments in Maruba Dam Reservoir, Machakos, Kenya

Applied and Environmental Soil Science, 2022
Bottom sediments form an integral part of the aquatic ecosystem, where they serve as important sinks for contaminants. However, management options for bottom sediments require an analysis of the physical and chemical properties.
Allois Luvai, John Obiero, Christian Omuto   +2 more
doaj   +1 more source

Peculiarities of the distribution of heavy metals in bottom sediments under different natural-anthropogenic conditions

Мінеральні ресурси України, 2023
The article considers the issue of bottom sediments qualitative composition methodology studying. Bottom sediments, as the most stable component of surface water bodies, accumulate pollutants, but can subsequently cause secondary water pollution ...
N. G. Lyuta, I. V. Sanina
doaj   +1 more source

Speciation of uranium and radionuclides in the bottom sediments of premises 001/3 of the "Shelter" object

Ядерна фізика та енергетика, 2021
The results of experimental determination of the forms of uranium and radionuclides 90Sr, 137Cs, 154Eu, 238Pu, 239+240Pu, 241Am, and 244Cm in the bottom sediments of the premises 001/3 of the "Shelter" object are presented.
O. O. Odintsov, L. A. Palamar, L. B. Chikur   +2 more
doaj   +1 more source

Bioavailability and Migration Features of Metals in “Bottom Sediments – Water” System under the Action of Different Environmental Factors

Chemistry Journal of Moldova: General, Industrial and Ecological Chemistry, 2023
This review considers and summarizes findings of the studies on metals’ coexisting forms in bottom sediments of surface water bodies. This makes it possible to assess metals’ migration ability in the “bottom sediments – water” system and their potential ...
Petro Linnik, Vladyslav Zhezherya, Rostyslav Linnik   +2 more
doaj   +1 more source

Differences in Bacterial Co-Occurrence Networks and Ecological Niches at the Surface Sediments and Bottom Seawater in the Haima Cold Seep

Microorganisms, 2023
Cold seeps are highly productive chemosynthetic ecosystems in the deep-sea environment. Although microbial communities affected by methane seepage have been extensively studied in sediments and seawater, there is a lack of investigation of prokaryotic ...
Song Zhong, Jingchun Feng, Jie Kong, Yongji Huang, Xiao Chen, Si Zhang   +5 more
doaj   +1 more source

Analysis of heavy metals contamination in bottom sediments of lakes located in the Pojezierze Gnieźnieńskie

Acta Scientiarum Polonorum. Formatio Circumiectus, 2020
Aim of the study: The aim of the study was to assess the degree of heavy metal pollution in bottom sediments of lakes on the basis of geochemical and ecotoxicological indicators.
Mariusz Sojka , Joanna Jaskuła , Rafał Wróżyński   +2 more
doaj   +1 more source