atmospheric composition

[ət-ˈmä-sfir-ik ˌkäm-pə-ˈzi-shən]
nounpl: atmospheric compositions
composição atmosférica
1. The mixture of gases and particles that make up the Earth's atmosphere, including nitrogen, oxygen, argon, carbon dioxide, and trace gases
The atmospheric composition has changed significantly due to industrial emissions.
A composição atmosférica mudou significativamente devido às emissões industriais.
2. The relative proportions of different chemical substances present in the atmosphere of a planet or celestial body
Scientists study the atmospheric composition of Venus to understand extreme greenhouse effects.
Os cientistas estudam a composição atmosférica de Vênus para entender os efeitos estufa extremos.
3. The specific blend of gases and aerosols in a particular location or time period
The atmospheric composition near the ocean differs from that in urban areas.
A composição atmosférica perto do oceano difere daquela das áreas urbanas.
This term is primarily used in scientific, environmental, and meteorological contexts in both Brazil and the United States. It has become increasingly prevalent in discussions about climate change and environmental policy. In Brazil, discussions about atmospheric composition are often linked to concerns about deforestation in the Amazon and air quality in major metropolitan areas like São Paulo. In the USA, the term is commonly referenced in climate science debates and environmental regulations.
Synonyms / Sinônimos
air compositionatmospheric makeupgaseous compositionair quality profile

Regional Variations

General Brazilian Portuguese
composição atmosférica
Standard usage in scientific and academic contexts
Brazil
composição do ar
More colloquial alternative used in informal settings
Portugal
composição atmosférica
Same as Brazilian Portuguese; standard in scientific discourse
Portugal
constituição atmosférica
Less common alternative in Portuguese European usage

Related Words

greenhouse gasesair pollutionozone layerclimate changeaerosolsmeteorology

Related Idioms & Phrases

changes in atmospheric composition
atmospheric composition analysis
monitor atmospheric composition
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