Results 31 to 40 of about 7,263,430 (296)

Assessing depleted uranium (DU) contamination of soil, plants and earthworms at UK weapons testing sites [PDF]

open access: yes, 2007
Depleted uranium (DU) weapons testing programmes have been conducted at two locations within the UK. An investigation was therefore carried out to assess the extent of any environmental contamination arising from these test programmes using both alpha ...
Graham, MC   +14 more
core   +1 more source

Assembly and Curation of Lists of Per- and Polyfluoroalkyl Substances (PFAS) to Support Environmental Science Research

open access: yesFrontiers in Environmental Science, 2022
Per- and polyfluoroalkyl substances (PFAS) are a class of man-made chemicals of global concern for many health and regulatory agencies due to their widespread use and persistence in the environment (in soil, air, and water), bioaccumulation, and toxicity.
Antony J. Williams   +9 more
doaj   +1 more source

Analysis of the relationship between students’ argumentation and chemical representational ability: a case study of hybrid learning oriented in the environmental chemistry course

open access: yesChemistry Teacher International, 2023
Engaging students in collaborative learning fosters the expression of ideas, deepens understanding, and hones argumentation skills. Argumentation is pivotal, and instructors should facilitate opportunities for its practice.
Ramadhani Dimas Gilang   +3 more
doaj   +1 more source

A consistent molecular hydrogen isotope chemistry scheme based on an independent bond approximation [PDF]

open access: yes, 2009
The isotopic composition of molecular hydrogen (H<sub>2</sub>) produced by photochemical oxidation of methane (CH<sub>4</sub>) and Volatile Organic Compounds (VOCs) is a key quantity in the global isotope budget of (H<sub>2 ...
Sub Atmospheric physics and chemistry   +8 more
core   +3 more sources

Métodos emergentes para aumentar a eficiência do ozônio no tratamento de águas contaminadas New methods for enhancing ozone efficiency on contaminated water treatment

open access: yesQuímica Nova, 2007
Many industrial processes produce effluents with a wide variety of xenobiotic organic pollutants, which cannot be efficiently degraded by conventional biological treatments.
Amira Mahmoud, Renato S. Freire
doaj   +1 more source

Influence of Densification on the Pyrolytic Behavior of Agricultural Biomass Waste and the Characteristics of Pyrolysis Products

open access: yesEnergies, 2022
TG/FT-IR techniques, UV-spectroscopy, microwave extraction, XRD and SEM were used to study how densification of the three types of agricultural biomass wastes (wheat straw, soft wood, and sunflower husk) changes the composition and structure of their ...
Marcin Bielecki   +2 more
doaj   +1 more source

An Introduction To Environmental Chemistry And Green Chemistry And The Difference Between Green Chemistry And Environmental Chemistry

open access: yes, 2022
Abstract As you see in the current situation, pollution is a global challenge. It affects the worldwide population, not even in India. The government has many policies to stop pollution, but still, it’s very challenging for us. The primary aim of environmental chemistry is to minimize the pollution in the environment and also the impact of the ...
openaire   +2 more sources

Dataset on Environmental Parameters and Greenhouse Gases in Port and Harbor Seawaters of Jeju Island, Korea

open access: yesData
This dataset presents environmental observations collected in August 2021 from 18 port and harbor sites located around Jeju Island, Korea. It includes physical, biogeochemical, and greenhouse gas (GHG) variables measured in surface seawater, such as ...
Jae-Hyun Lim   +4 more
doaj   +1 more source

Climate Change and Its Potential Impact on the Conservation of Wooden Pole Dwellings in Lake Bolsena: Insights from Climate Proxy Data and High-Frequency Water Monitoring

open access: yesHydrology
This study examines the impact of recent climatic trends on the preservation of submerged wooden structures at the Gran Carro archaeological site in Lake Bolsena, Italy.
Swati Tamantini   +8 more
doaj   +1 more source

Start-up and steady-state conditions of an Anaerobic Hybrid Reactor (AHR) using mini-filters composed with two types of support medium operating under low loading rates

open access: yesBrazilian Archives of Biology and Technology, 2011
The present work aimed at studying the operational parameters of an Anaerobic Hybrid Reactor (AHR) removing organic matter of coffee wastewater with low concentration.
Vivian Galdino da Silva   +3 more
doaj   +1 more source

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