emisie

Emisie is a term used in environmental science and policy to describe the release or discharge of substances or energy from a source into the environment. In English, the corresponding word is emissions. The term is applied across contexts to denote quantities of matter or energy that enter air, water, soil, or other media as a result of natural processes or human activity.

Emisie can be categorized by medium and type. Air emissions include greenhouse gases such as carbon dioxide and methane, as well as pollutants like sulfur dioxide, nitrogen oxides, particulate matter, and volatile organic compounds. Water emissions refer to discharges of contaminants into rivers, lakes, or oceans, while soil or land emissions involve contaminants that enter soil or leach from waste sites. In some fields, emissions also include acoustic or electromagnetic radiation emitted by devices or processes.

Sources of emisie include natural processes (volcanic activity, wildfires) and anthropogenic activities (combustion of fossil fuels, industrial processes, agriculture, waste management). The environmental and health impacts depend on the substance, concentration, exposure, and duration, influencing air quality, climate, ecosystems, and human health.

Measurement and regulation often use mass flow units (for example, kilograms or tonnes per unit time) and may express different gases in terms of CO2 equivalent to enable comparison. Emission inventories, reporting, and standards are core tools for policy and industry, guiding reductions through cleaner technology, energy efficiency, process optimization, and regulatory measures such as emission standards or cap-and-trade programs. Global frameworks address emisie through climate goals, reporting, and collaborative mitigation efforts.