Unintended leaks of gas from the processing, transmission, and/or transportation of fossil fuels.

Substances that enter the air without going through a smokestack, such as dust from soil erosion, strip mining, rock crushing, construction, and building demolition. functional neuroanatomy

Those emissions which could not reasonably pass through a stack, chimney, vent or other functionally-equivalent opening.

Natural Gas released to the air between the well cap and the end user, usually through leaks or through venting of pressure build-ups, or venting prior to production.

According to 10 CFR 300.2 [Title 10 – Energy; Chapter II -- Department of Energy; Subchapter B -- Climate Change; Part 300 -- Voluntary Greenhouse Gas Reporting Program: General Guidelines], the term [..]

these are greenhouse gases or air pollutants that are emitted in an uncontrolled manner.

Releases of pollutants to the atmosphere that occur when vapors are vented from containers or tanks where materials are stored.  They can also be caused by spillage during the unloading of vehicles, leaks from pipes and valves, and through equipment operation.

Air pollutants released to the air other than those from stacks or vents; typically small releases from leaks in plant equipment such as valves, pump seals, flanges, sampling connections, etc.

Emissions not caught by a capture system.

Emissions not caught by a capture system.

Emissions not caught by a capture system.

Emissions not caught by a capture system; which are often due to equipment leaks, evaporative processes and windblown disturbances.

Emissions which could not reasonably pass through a stack, chimney, vent, or other functionally equivalent opening.

Air emissions that are not released through stacks, vents, ducts, pipes, or any other confined air stream. Examples are equipment leaks or evaporation from surface impoundments.

Fugitive emissions are small emissions of gases or vapors from pressurized equipment due to leaks and various other unintended or irregular releases of gases, mostly from pipe connections, valves and compressor seals.

Emissions of gases or vapors from pressurized equipment, including pipelines, due to leakage, unintended or irregular releases of gases.  Gas field

– Air pollution emissions due to process equipment leaks that can not reasonably pass through a stack, chimney, or vent.

Emissions of gases or vapours from pressurised equipment due to leaks and other unintended or irregular releases of gases, mostly from industrial activities. In coal mining it refers to the gas that e [..]

Emissions that are emitted unintentionally through a stack or vent

Unplanned releases of gas, predominantly methane, that occur at any stage of the gas production process. This includes leakages from pipelines, abandoned wells, and producing gas wells.

in the context of the National Greenhouse Gas Inventory, these are greenhouse gases emitted from fuel production itself including, processing, transmission, storage and distribution processes, and inc [..]

Air pollutants released to the air other than those from stacks or vents; typically small releases from leaks in plant equipment such as valves, pump seals, flanges, sampling connections, etc.