Zobrazeno 1 - 10
of 81
pro vyhledávání: '"Pieter G. Van Zyl"'
Autor:
Temesgen Alemayehu Abera, Janne Heiskanen, Eduardo Eiji Maeda, Mohammed Ahmed Muhammed, Netra Bhandari, Ville Vakkari, Binyam Tesfaw Hailu, Petri K. E. Pellikka, Andreas Hemp, Pieter G. van Zyl, Dirk Zeuss
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-10 (2024)
Abstract Tropical montane forest ecosystems are pivotal for sustaining biodiversity and essential terrestrial ecosystem services, including the provision of high-quality fresh water. Nonetheless, the impact of montane deforestation and climate change
Externí odkaz:
https://doaj.org/article/0356a045f65841d092864d24735e60c4
Autor:
Stephanus P. du Preez, Tristan P. M. van Kaam, Eli Ringdalen, Merete Tangstad, Kazuki Morita, Dmitri G. Bessarabov, Pieter G. van Zyl, Johan P. Beukes
Publikováno v:
Minerals, Vol 13, Iss 6, p 809 (2023)
Ferrochrome (FeCr) is the main source of virgin chromium (Cr) units used in modern-day chromium (Cr) containing alloys. The vast majority of produced Cr is used during the production of stainless steel, which owes its corrosion resistance mainly to t
Externí odkaz:
https://doaj.org/article/ea2294eb2ebf4e5abb535a23fb4f963d
Autor:
Jan-Stefan Swartz, Pieter G. van Zyl, Johan P. Beukes, Corinne Galy-Lacaux, Casper Labuschagne, Ernst-Gunther Brunke, Thumeka Mkololo, Jacobus J. Pienaar
Publikováno v:
Clean Air Journal, Vol 32, Iss 1 (2022)
The measurement of precipitation chemistry enables the assessment of the temporal and spatial evolution of the chemical composition of the atmosphere associated with atmospheric physical and chemical mechanisms. The aims of this study were to report
Externí odkaz:
https://doaj.org/article/adf8b2fabce54eb988eaeed10b45c894
Autor:
Sonwabo E. Bambalaza, Buhle S. Xakalashe, Yolindi Coetsee, Pieter G. van Zyl, Xoliswa L. Dyosiba, Nicholas M. Musyoka, Joalet D. Steenkamp
Publikováno v:
Materials, Vol 16, Iss 7, p 2782 (2023)
Waste plastics such as polyethylene terephthalate (w-PET) and stockpiled discard coal (d-coal) pose a global environmental threat as they are disposed of in large quantities as solid waste into landfills and are particularly hazardous due to spontane
Externí odkaz:
https://doaj.org/article/64eef3d7bc3448a1afa75b7a871d076e
Autor:
Morongoa Morongoa Ngoasheng, Johan Paul Beukes, Pieter G. van Zyl, Jan -S. Swartz, Victor Loate, Portia Krisjan, Sandile Mpambani, Markku Kulmala, Ville Vakkari, Lauri Laakso
Publikováno v:
Clean Air Journal, Vol 31, Iss 1 (2021)
Air quality monitoring has been lacking in the rural and western North West Province. Here ambient sulphur dioxide (SO2), nitrogen dioxide (NO2) and ozone (O3) concentrations, monitored with passive samplers at 10 sites, are presented. Widespread SO2
Externí odkaz:
https://doaj.org/article/88737f4184f4428b875b6b4a47aa28f1
Autor:
Luckson Muyemeki, Roelof Burger, Stuart J. Piketh, Brigitte Language, Johan P. Beukes, Pieter G. van Zyl
Publikováno v:
South African Journal of Science, Vol 117, Iss 5/6 (2021)
The Vaal Triangle Airshed Priority Area (VTAPA), like other priority areas in South Africa, has an air pollution problem. Understanding the sources contributing to air pollution in this priority area will assist in the selection and implementation of
Externí odkaz:
https://doaj.org/article/efc58ea122e94ee3a9bd02f5f8753df8
Autor:
Miroslav Josipovic, Catherine Leal-Liousse, Belinda Crobeddu, Armelle Baeza-Squiban, C. Keitumetse Segakweng, Corinne Galy-Lacaux, J. Paul Beukes, Pieter G. van Zyl, Gerhard Fourie
Publikováno v:
Clean Air Journal, Vol 29, Iss 2 (2019)
This study aimed to characterise aerosols sampled in the vicinity of a major industrialised area, i.e. the Vaal Triangle. It included the determination of oxidative potential as a predictive indicator of particle toxicity. Aerosol samples were collat
Externí odkaz:
https://doaj.org/article/b9e363cc26884fed946aac39f2e59fde
Autor:
Wanda Booyens, Johan P. Beukes, Pieter G. Van Zyl, Jose Ruiz-Jimenez, Matias Kopperi, Marja-Liisa Riekkola, Miroslav Josipovic, Ville Vakkari, Lauri Laakso
Publikováno v:
Clean Air Journal, Vol 29, Iss 1 (2019)
Externí odkaz:
https://doaj.org/article/5ed9933c019b4c15a4634e55bbaa5e73
Autor:
Alexandra S.M. Lourens, Tim M. Butler, Johan P. Beukes, Pieter G. Van Zyl, Gerhard D. Fourie, Mark G. Lawrence
Publikováno v:
South African Journal of Science, Vol 112, Iss 1/2, Pp 1-11 (2016)
Urban air pollution has become a major concern over the past decades. One of the largest conurbations in Sub-Saharan Africa is developed around the cities of Johannesburg and Pretoria (Jhb-Pta megacity). In this study, a photochemical box model with
Externí odkaz:
https://doaj.org/article/db0436af87634b738a07266b285d2346
Autor:
Andrew D. Venter, Pieter G. van Zyl, Johan P. Beukes, Jan-Stefan Swartz, Miroslav Josipovic, Ville Vakkari, Lauri Laakso, Markku Kulmala
Publikováno v:
Clean Air Journal, Vol 28, Iss 2 (2018)
Externí odkaz:
https://doaj.org/article/2121658cffe94cabafd4ef1af6176fd9