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Atmospheric reactive trace gases: low concentrations, major consequences

Despite only being present in very small quantities, trace gases leave their mark on the atmospheric composition. Since they are reactive, they may lead to the formation of secondary compounds such as ozone or aerosols that have a significant impact on health and the climate. IMT Lille Douai is a …

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What is a volatile organic compound (VOC)?

VOC, Volatile organic compound

Pollution in urban areas is a major public health issue. While peaks in the concentration of fine particles often make the news, they are not the only urban pollutants. Volatile organic compounds, or VOC, also present a hazard. Some are carcinogenic, while others react in the atmosphere, contributing to the …

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How eco-design earned its place in the corporate world

eco-design

Natacha Gondran, Mines Saint-Étienne – Institut Mines-Télécom In the 1970s, regulations were introduced to require companies to prevent industrial pollution. Examples include the Clean Air Act (1970) in the United States and legislation on facilities classified for the protection of the environment in France (1976). Since then, awareness has grown …

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Waste worth its weight in gold

waste, Ange Nzihou

For Ange Nzihou, waste is a valuable material. For over ten years, this researcher has been working on recovering waste to turn it into an important economic resource. However, his greatest scientific accomplishments have taken place outside the laboratories of IMT Mines Albi. Throughout his career, Ange Nzihou has done …

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Learning to deal with offensive environmental odors

environmental odors

What is an offensive environmental odor? How can it be defined, and how should its consequences be managed? This is what students will learn in the serious game “Les ECSPER à Smellville”, part of the Air Quality MOOC. This educational tool was developed at IMT Lille Douai, and will be …

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What are fine particles?

fine particles, Véronique Riffault, IMT Lille Douai

During peak pollution events, everyone is talking about them. Fine particles are often accused of being toxic. Unfortunately, they do not only come out during episodes of high pollution. Véronique Riffault, a researcher in atmospheric sciences at IMT Lille Douai, revisits the basics of fine particles to better understand what …

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Climate change as seen from space

space, René Garello, IMT Atlantique

René Garello, IMT Atlantique – Institut Mines-Télécom The French National Centre for Space Research has recently presented two projects based on greenhouse gas emission monitoring (CO2 and methane) using satellite sensors. The satellites, which are to be launched after 2020, will supplement measures carried out in situ. On a global scale, …

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Julien Bras: nature is his playground

Young Scientist Prize, julien bras, biomaterial

Cellulose is one of the most abundant molecules in nature. At the nanoscale, its properties allow it to be used for promising applications in several fields. Julien Bras, a chemist at Grenoble INP, is working to further develop the use of this biomaterial. On November 21st he received the IMT-Académie des …

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Fine particles are dangerous, and not just during pollution peaks

Véronique Riffault, IMT Lille Douai – Institut Mines-Télécom and François Mathé, IMT Lille Douai – Institut Mines-Télécom The French Agency for Food, Environmental and Occupational Health and Safety (ANSES) released a new notice concerning air pollution yesterday. After having been questioned on the potential changes to norms for ambient air …

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Understanding methane hydrate formation to revolutionize pipelines

Underwater pipeline, Pipeline sous-marin, hydrocarbures, hydrates de méthane, crystallization, cristallisation

Since hydrocarbon is always drawn from deep in the sea floor, oil companies face potential obstruction problems in their pipelines due to the formation of solid compounds: methane hydrates. Ana Cameirao, an engineer and PhD specializing in industrial crystallization at Mines Saint-Étienne, is hoping to understand and model this phenomenon. She …

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