Results 21 to 30 of about 387,798 (268)

Modeling and Assessing the Spatial and Vertical Distributions of Potentially Toxic Elements in Soil and How the Concentrations Differ

Toxics, 2021
A healthy soil is a healthy ecosystem because humans, animals, plants, and water highly depend upon it. Soil pollution by potentially toxic elements (PTEs) is a serious concern for humankind. The study is aimed at (i) assessing the concentrations of PTEs
Samuel Kudjo Ahado, Chukwudi Nwaogu, Vincent Yaw Oppong Sarkodie, Luboš Borůvka   +3 more
doaj   +1 more source

Revealing the Combined Effects of Microplastics, Zn, and Cd on Soil Properties and Metal Accumulation by Leafy Vegetables: A Preliminary Investigation by a Laboratory Experiment

Soil Systems, 2023
A pot experiment was carried out to investigate the effects of polyethylene (PE), a broadly utilized polymer type, on soil properties and lettuce growth.
John Bethanis, Evangelia E. Golia
doaj   +1 more source

Environmental Assessment of Potentially Toxic Elements Using Pollution Indices and Data-Driven Modeling in Surface Sediment of the Littoral Shelf of the Mediterranean Sea Coast and Gamasa Estuary, Egypt

Journal of Marine Science and Engineering, 2022
Coastal environmental assessment techniques have evolved into one of the most important fields for the long-term development and management of coastal zones.
Magda M. Abou El-Safa, Salah Elsayed, Osama Elsherbiny, Adel H. Elmetwalli, Mohamed Gad, Farahat S. Moghanm, Ebrahem M. Eid, Mostafa A. Taher, Mohamed H. E. El-Morsy, Hanan E. M. Osman, Ali H. Saleh   +10 more
doaj   +1 more source

Factors influencing faecal contamination in coastal marinas

Water Science and Technology, 2003
Recreational pleasure and fishing boats are potential sources of human faecal contamination because the sanitary wastes from boat occupants may be discharged into the surrounding water. The impacts of such faecal contamination from boats is potentially high in marinas where boats are often kept and occupied for varying periods of time.
M D, Sobsey, R, Perdue, M, Overton, J, Fisher   +3 more
openaire   +2 more sources

Presence and levels of potential trace elements in lettuce and spring onion grown in Kumasi, Ghana

Kuwait Journal of Science
Vegetables are essential for human nutrition and health, and their consumption is increasing dramatically in every part of the world. However, irrigated water used in cultivation is usually not portable. The aim of the study was to determine the presence
Lyndon N.A. Sackey, Kate Markin, Abigail Kwarteng, Isaac Mawunyo Ayitey, Phebe Kayoung   +4 more
doaj   +1 more source

Nonnegative tensor factorization for contaminant source identification

Journal of Contaminant Hydrology, 2019
Unsupervised Machine Learning (ML) is becoming increasingly popular for solving various types of data analytics problems including feature extraction, blind source separation, exploratory analyses, model diagnostics, etc. Here, we have developed a new unsupervised ML method based on Nonnegative Tensor Factorization (NTF) for identification of the ...
Velimir V. Vesselinov, Boian S. Alexandrov, Daniel O'Malley   +2 more
openaire   +3 more sources

Estimates of heavy metals pollution in parishan wetland sediments using pollution indices [PDF]

علوم محیطی, 2017
Introduction: Parishan wetland is one of the most valuable and ecologically important ecosystems in the world which has completely dried up in recent years due to successive droughts (Dehghani, 2007).
Heeva Elmizadeh, Saeid Farhadi, Maryam Razmi   +2 more
doaj  

Risk Assessment of Heavy Metals in Acid Soils Collected from Different Agricultural Systems in the Piedemonte Llanero in Colombia

TecnoLógicas, 2023
Agricultural soils may become polluted by heavy metals as a result of receiving a significant amount of pollutants from different sources of land applications, such as fertilizers, animal manure, sewage sludge, pesticides, and wastewater irrigation ...
Juan Manuel Trujillo-González, Deiver Alexis García-Bravo, Jose Ismael Rojas-Peña, Marlon Serrano-Gómez, Edgar Fernando Castillo-Monroy, Marco Aurelio Torres-Mora, Francisco J. García-Navarro, Raimundo Jiménez-Ballesta   +7 more
doaj   +1 more source

Assessment of Heavy Metal Contamination of Agricultural Soil around Dhaka Export Processing Zone (DEPZ), Bangladesh: Implication of Seasonal Variation and Indices

Applied Sciences, 2012
Intense urbanization, large scale industrialization and unprecedented population growth in the last few decades have been responsible for lowering environmental quality.
Syed Hafizur Rahman, Dilara Khanam, Tanveer Mehedi Adyel, Mohammad Shahidul Islam, Mohammad Aminul Ahsan, Mohammad Ahedul Akbor   +5 more
doaj   +1 more source

Assessment of potentially toxic metals in water, sediment, and the tissues of seven important fish species from neotropical brazilian river

Neotropical Ichthyology, 2022
Fish are often used as bioindicators of the presence of potentially toxic metals in aquatic ecosystems. The objective of these study was to quantify the levels of Cd, Cr, Cu, Hg, Pb and Zn in water and sediment samples from the Sorocaba River and ...
Karla Fernanda Sanches Rodrigues, Welber Senteio Smith   +1 more
doaj   +1 more source