Results 1 to 10 of about 482,821 (196)

The Characteristics of Adsorption of Di-n-Butyl Phthalate by Surface Sediment from the Three Gorges Reservoir [PDF]

Toxics
Phthalic acid esters (PAEs), recognized as endocrine disruptors, are identified as predominant organic pollutants in the Three Gorges Reservoir (TGR).
Yuting Zhang, Min Liu, Li Lin, Liangyuan Zhao, Wei Deng, Cheng Han, Mingli Wu   +6 more
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Concurrent Methane Production and Oxidation in Surface Sediment from Aarhus Bay, Denmark [PDF]

Frontiers in Microbiology, 2017
Marine surface sediments, which are replete with sulfate, are typically considered to be devoid of endogenous methanogenesis. Yet, methanogenic archaea are present in those sediments, suggesting a potential for methanogenesis. We used an isotope dilution
Ke-Qing Xiao, Felix Beulig, Kasper U. Kjeldsen, Bo B. Jørgensen, Nils Risgaard-Petersen   +4 more
doaj   +2 more sources

Impacts of Loss of Cryosphere in the High Mountains of Northwest North America

Quaternary, 2023
Global atmospheric warming is causing physical and biotic changes in Earth’s high mountains at a rate that is likely unprecedented in the Holocene. We summarize changes in the presently glacierized mountains of northwest North America, including a rapid ...
John J. Clague, Dan H. Shugar
doaj   +1 more source

Accumulation of Trace Metal in Sediment and Soft Tissue of Strombus canarium in a Tropical Remote Island of Thailand

Journal of Marine Science and Engineering, 2021
The present study determined the metal levels in surface sediment and in soft tissue of the Strombus canarium at Libong Island, Thailand, and estimated the possible risk from consuming the shellfish.
Thawanrat Kobkeatthawin, Sanya Sirivithayapakorn, Thongchai Nitiratsuwan, Dudsadee Muenhor, Pei-Sun Loh, Siriporn Pradit   +5 more
doaj   +1 more source

Deficiency and excess of groundwater iodine and their health associations

Nature Communications, 2022
Both iodine deficiency and excess could cause thyroid disorders. By creating a national map of groundwater iodine throughout China, the authors reveal the spatial responses of diverse health risks to iodine in continental groundwater.
Ruoqi Ma, Mingquan Yan, Peng Han, Ting Wang, Bin Li, Shungui Zhou, Tong Zheng, Yandi Hu, Alistair G. L. Borthwick, Chunmiao Zheng, Jinren Ni   +10 more
doaj   +1 more source

Investigation of Distribution and Origin of Polycyclic Aromatic Hydrocarbons (PAHs) in Chalous River Surface Sediments [PDF]

محیط زیست و مهندسی آب, 2021
Polycyclic aromatic hydrocarbons (PAHs) are among the important organic pollutants in the aquatic ecosystems generally generated by natural and human processes. The purpose of this study was to determine the concentration and distribution of PAHs and the
Azita Behbahaninia, Alireza Mashayekhi, Ali Azimi   +2 more
doaj   +1 more source

Contrasting particle fluxes and composition in a submarine canyon affected by natural sediment transport events and bottom trawling

Frontiers in Marine Science, 2022
Submarine canyons are important conduits of sediment and organic matter to deep-sea environments, mainly during high-energy natural events such as storms, river floods, or dense shelf water cascading, but also due to human activities such as bottom ...
Sarah Paradis, Sarah Paradis, Sarah Paradis, Marta Arjona-Camas, Miguel Goñi, Albert Palanques, Pere Masqué, Pere Masqué, Pere Masqué, Pere Puig   +9 more
doaj   +1 more source

Spatial Distribution and Provenance of Detrital Minerals of Surface Sediment in the Okhotsk Sea

Frontiers in Earth Science, 2021
The Okhotsk Sea is a distinctive marginal sea in the northwestern Pacific Ocean, which is characterized by the prevalence of seasonal sea ice in winter. Sediment is sourced from the around region through sea ice transportation, rivers input, and volcanic
Kunshan Wang, Kunshan Wang, Xuefa Shi, Xuefa Shi, Jianjun Zou, Jianjun Zou, Yanguang Liu, Yanguang Liu, Zhengquan Yao, Zhengquan Yao, Sergey Alexandrovich Gorbarenko   +10 more
doaj   +1 more source

Water quality and spatial and seasonal dynamics in the largest water supply reservoir in Brazil and implications for diatom assemblages

Acta Limnologica Brasiliensia, 2021
: Aim in this paper we investigated how spatial factors and seasonal dynamics influenced the diatom community in a tropical deep environment of low productivity waters in Brazil.
Majoi de Novaes Nascimento, Mark Bush, Denise de Campos Bicudo   +2 more
doaj   +1 more source

The Distribution of Bathyarchaeota in Surface Sediments of the Pearl River Estuary Along Salinity Gradient

Frontiers in Microbiology, 2020
Bathyarchaeota, a recently proposed archaeal phylum, is globally distributed and highly abundant in anoxic sediments. Metabolic pathways of the Bathyarchaeota members are diverse and, hence, this phylum has been proposed to play an important role in ...
Dayu Zou, Dayu Zou, Dayu Zou, Jie Pan, Zongbao Liu, Chuanlun Zhang, Hongbin Liu, Meng Li, Meng Li   +8 more
doaj   +1 more source