How to Say "emission" in Spanish
The most common Spanish word for “emission” is “emisión” — use 'emisión' when referring to the release of specific substances, particularly pollutants like gases or smoke, or for the release of light or sound..
English → Spanish
emisión
nounB1general
Use 'emisión' when referring to the release of specific substances, particularly pollutants like gases or smoke, or for the release of light or sound.
Examples
Debemos reducir la emisión de gases de efecto invernadero.
We must reduce the emission of greenhouse gases.
radiación
nounB2general
Choose 'radiación' for the general release of energy, especially electromagnetic energy like heat or light from a source, or ionizing radiation.
Examples
La radiación solar es esencial para la vida en la Tierra.
Solar radiation is essential for life on Earth.
Emisión vs. Radiación
Learners often confuse 'emisión' and 'radiación' when talking about light. Remember that 'emisión' is for the release of light *itself* (like a light bulb emitting light), while 'radiación' refers to energy *transmitted* as waves or particles, like solar radiation.
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