Results 21 to 30 of about 256,826 (292)

Research on the Influence of Cosolvent on the Determination of the Contamination Degree of Jet Fuel [PDF]

ACS Omega, 2020
The effect of cosolvent on trace free water in the determination of the contamination degree of jet fuel was investigated. The interference of trace free water on the automatic particle counter can be eliminated by adding isopropanol as a cosolvent to the measured oil sample. Isopropanol can dissolve trace free water in oil.
Ji-Xin Mao, Quan-Xi Zheng, Xin Xu, Li Guo, Shi-Zhao Yang, Bing-Hao Chen, Jian-Qiang Hu   +6 more
openaire   +3 more sources

Seasonal assessment of heavy metal contamination of groundwater in two major dumpsites in Sierra Leone

Cogent Engineering, 2023
Consumption of water contaminated with heavy metals has serious health consequences and these include hypertension, kidney disease, cancer, anaemia, brain damage, etc.
Abdul Aziz Sankoh, Joseph Amara, Tamba Komba, Cynthia Laar, Alusine Sesay, Nana Sarfo Derkyi, Ronnie Frazer-williams   +6 more
doaj   +1 more source

Galaxy Clusters Discovered via the Thermal Sunyaev-Zel’dovich Effect in the 500-square-degree SPTpol Survey [PDF]

The Open Journal of Astrophysics, 2023
We present a catalog of 689 galaxy cluster candidates detected at significance $\xi>4$ via their thermal Sunyaev-Zel'dovich (SZ) effect signature in 95 and 150 GHz data from the 500-square-degree SPTpol survey.
L. Bleem, M. Klein, T. Abbott, P. Ade, M. Aguena, O. Alves, A. J. Anderson, F. Andrade-Oliveira, B. Ansarinejad, M. Archipley, M. Ashby, J. Austermann, D. Bacon, J. Beall, A. Bender, B. Benson, F. Bianchini, S. Bocquet, D. Brooks, D. Burke, M. Calzadilla, J. Carlstrom, A. Rosell, J. Carretero, C. Chang, P. Chaubal, H. Chiang, T. Chou, R. Citron, C. C. Moran, M. Costanzi, T. Crawford, A. Crites, L. Costa, T. Haan, J. Vicente, S. Desai, M. Dobbs, P. Doel, W. Everett, I. Ferrero, B. Flaugher, B. Floyd, D. Friedel, J. Frieman, J. Gallicchio, J. García-Bellido, M. Gatti, E. George, G. Giannini, S. Grandis, D. Gruen, R. Gruendl, N. Gupta, G. Gutiérrez, N. Halverson, S. Hinton, G. Holder, D. Hollowood, W. Holzapfel, K. Honscheid, J. Hrubeš, N. Huang, J. Hubmayr, K. Irwin, J. Mena-Fernández, D. James, F. K'eruzor'e, L. Knox, K. Kuehn, O. Lahav, A. Lee, S. Lee, D. Li, A. Lowitz, J. Marshal, M. McDonald, J. McMahon, F. Menanteau, S. Meyer, R. Miquel, J. J. Mohr, J. Montgomery, J. Myles, T. Natoli, J. Nibarger, G. Noble, V. Novosad, R. Ogando, S. Padín, S. Patil, M. Pereira, A. Pieres, A. P. Malag'on, C. Pryke, C. Reichardt, M. Rodr'iguez-Monroy, A. Romer, J. Ruhl, B. Saliwanchik, L. Salvati, E. Sanchez, A. Saro, K. Schaffer, T. Schrabback, I. Sevilla-Noarbe, C. Sievers, G. Smecher, M. Smith, T. Somboonpanyakul, B. Stalder, A. Stark, E. Suchyta, M. Swanson, G. Tarlé, C. To, C. Tucker, T. Veach, J. Vieira, M. Vincenzi, G. Wang, J. Weller, N. Whitehorn, P. Wiseman, W. Wu, V. Yefremenko, J. Zebrowski, Y. Zhang   +127 more
semanticscholar   +1 more source

Spatial distribution and level of contamination of potentially toxic elements in sediments and soils of a biological reserve wetland, northern Amazon region of Ecuador.

Journal of Environmental Management, 2021
This study quantifies the degree of pollution and assess the ecological risk of As, Ba, Cd, Co, Cr, Cu, Mo, Ni, Pb, V and Zn in sediments and soils of the Limoncocha Biological Reserve (Ecuador), identified as a Ramsar site with high ecological and ...
K. Carrillo, J. Drouet, A. Rodríguez-Romero, A. Tovar‐Sánchez, Gema Ruiz-Gutiérrez, Javier R. Viguri Fuente   +5 more
semanticscholar   +1 more source

APPLICATION OF SOME SINGLE AND INTEGRATED INDEX EQUATION TO ASSESS HEAVY METAL IN DIFFERENT SOILS IN ERBIL GOVERNORATE

The Iraqi Journal of Agricultural science, 2021
The aim of this study was to application of some single and integrated index equation to assess heavy metal in different soil within Erbil governorate.
Aweez & et al.
doaj   +1 more source

Spatial assessment of soil contamination by heavy metals from informal electronic waste recycling in Agbogbloshie, Ghana [PDF]

Environmental Health and Toxicology, 2016
Objectives This study examined the spatial distribution and the extent of soil contamination by heavy metals resulting from primitive, unconventional informal electronic waste recycling in the Agbogbloshie e-waste processing site (AEPS) in Ghana. Methods
Vincent Nartey Kyere, Klaus Greve, Sampson M. Atiemo   +2 more
doaj   +1 more source

Assessment of soil heavy metal pollution in a former mining area - before and after the end of mining activities

Soil and Water Research, 2017
Toxicity and persistence of heavy metals, which are accumulated in the environment as the result of diverse industrial activities, represent serious environmental problem worldwide.
Lenka Demková, Tomáš Jezný, Lenka Bobuľská   +2 more
doaj   +1 more source

Pollution indices as useful tools for the comprehensive evaluation of the degree of soil contamination–A review

Environmental Geochemistry and Health, 2018
The paper provides a complex, critical assessment of heavy metal soil pollution using different indices. Pollution indices are widely considered a useful tool for the comprehensive evaluation of the degree of contamination.
J. Kowalska, R. Mazurek, M. Gąsiorek, T. Zaleski   +3 more
semanticscholar   +1 more source

The degree and source of plastic recyclates contamination with polycyclic aromatic hydrocarbons

RSC Advances, 2020
The degree and source of recyclates contamination with polycyclic aromatic hydrocarbons was studied in 8 polyolefin recyclate samples; 4 from post-consumer packaging waste and 4 from a mixed source (post-industrial, post-commercial, and post-consumer).
Ayah Alassali, Wolfgang Calmano, Evangelos Gidarakos, Kerstin Kuchta   +3 more
openaire   +3 more sources

Six Main Contributing Factors to High Levels of Mycotoxin Contamination in African Foods

Toxins, 2022
Africa is one of the regions with high mycotoxin contamination of foods and continues to record high incidences of liver cancers globally. The agricultural sector of most African countries depends largely on climate variables for crop production ...
Q. Nji, O. Babalola, T. Ekwomadu, N. Nleya, M. Mwanza   +4 more
semanticscholar   +1 more source