Glossary U

The Environmental Glossary. Letter U +++ Popular Articles: 'Utility-interactive', 'Ultraviolet radiation', 'Udder'

Deutsch: Uran / Español: Uranio / Português: Urânio / Français: Uranium / Italiano: Uranio

Uranium is a naturally occurring radioactive element with atomic number 92. It is commonly found in small amounts in the Earth's crust and plays a significant role in various environmental processes. Uranium has both natural and anthropogenic sources and can have significant environmental implications.

An Urban and Built-Up Areas is a land use category consisting of residential, industrial, commercial, and institutional land construction sites; public administrative sites; railroad

Deutsch: Stadtfabrikanalyse / Español: Análisis del tejido urbano / Português: Análise do tecido urbano / Français: Analyse du tissu urbain / Italiano: Analisi del tessuto urbano /

The Urban Fabric Analysis is a method for determining the proportions of vegetative, roofed, and paved surface Cover relative to the total urban surface in the city.

An Urban Heat Island Effect is a measurable increase in ambient urban air temperatures resulting primarily from the replacement of vegetation with buildings, roads, and other heat-absorbing infrastructure.

German: Stadtpark
An urban park isa park in cities and areas of high population concentration.

An Use Constituting Disposal is the direct placement of recycled materials, that is wastes or waste derived-products, on the land.

Deutsch: US Umweltbehörde/ Español: Agencia de Protección Ambiental de Estados Unidos / Português: Agência de Proteção Ambiental dos Estados Unidos / Français: Environmental Protection Agency / Italiano: Agenzia per la protezione dell'ambiente

USEPA (United States Environmental Protection Agency) is a federal agency of the United States government responsible for safeguarding and protecting human health and the environment. Established in 1970, the USEPA plays a crucial role in formulating and enforcing environmental regulations, conducting research, and providing guidance to address various environmental challenges and issues. Its mission is to ensure that the nation's air, water, and land resources are clean and sustainable for present and future generations.

Deutsch: Versorgungsinteraktiv / Español: Interactivo de servicios públicos / Português: Interativo de utilidade / Français: Utilitaire interactif / Italiano: Utility-interattivo /

An Utility-interactive is a power system which interacts with the utility grid (mains), taking power from the grid to satisfy its loads as necessary, and returning power to the grid when not required by the loads.

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