How do fugitive emissions occur?

Calculation of fugitive emissions

Emissions of pollutants to air can arise from a wide variety of activities during an investment client’s/recipient’s construction, operation and decommissioning operations.Emissions to air are typically associated with processes such as combustion, material storage and other industry-specific processes, and can arise from:

To the extent practicable, an investment client/recipient’s operations should avoid, minimize and control the adverse impacts of emissions to air on human health, safety and the environment. The generation and discharge of air emissions can be managed through a combination of measures such as energy efficiency, process modification, fuel and other material selection, and the application of emission control techniques. A financial institution can assist a client/investment recipient in identifying areas where air emissions can be reduced and in identifying environmentally related business opportunities.

What are the fugitive emissions

As in the gas line of our home, in the industry, odors of gases or liquids used in the process are frequently detected, these odors are usually a consequence of deficiencies or failure in the seals of equipment and connections. Leaks within a pressurized process generally occur through:

It is worth mentioning that not all leaks are considered fugitive emissions, as these can be internal or external.    For example, in a ball valve, internal leakage means leakage through the seat (from upstream to downstream). However, as long as the valve does not vent to the atmosphere, an internal leak would not be considered a fugitive emission. In contrast, an external leakage means a leakage from inside the valve to the environment, for example, through the stem or body seal.

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Every day more attention is paid to fugitive emissions, being the trend towards stricter control measures by governments and regulatory institutions towards the industry (especially for volatile organic compounds – HRVOC). In TFV Mexico we know that, that’s why within the industrial valves category we have special products to reduce fugitive emissions.

Types of emissions

An emission is understood to be the continuous or discontinuous discharge into the atmosphere of materials, substances or forms of energy coming, directly or indirectly, from any source capable of producing atmospheric pollution.

It includes pollutants that are emitted directly into the atmosphere, known as primary pollutants (CO, sulfur dioxide, nitrogen oxide, etc.), and those that originate as a result of chemical reactions of these primary pollutants when they come into contact with the air in the atmosphere, known as secondary pollutants, the most important of which is ozone formation.

Ensure that the risk of exposure to emissions of hazardous substances and/or waste resulting from the purification and filtering processes are adequately included in the risk assessment.

Propose the adoption of agreements and commitments with the company’s managers to minimize these specific emissions through the adoption of best available techniques, changes in raw materials, substitution of hazardous substances, etc.

Fugitive emissions ipcc

The presence in the air of one or more pollutants, or any combination of them, in concentrations or levels that may constitute a risk to human health, to the quality of life of the population, to the preservation of nature, or to the conservation of the environmental heritage.

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Any element, compound, substance, chemical or biological derivative, energy, radiation, vibration, noise, or a combination thereof, whose presence in the environment, at certain levels, concentrations or periods of time, may constitute a risk to the health of people, to the quality of life of the population, to the preservation of nature or to the conservation of the environmental heritage.

Correspond to pollution events produced by natural phenomena.  These include erosion, forest fires, volcanic eruptions, decomposition of vegetation and dust storms.

These correspond to activities or interventions carried out by people, the main cause being the combustion of materials, whether originated by industries, vehicles or in the home. This classification is mainly subdivided into: stationary sources, mobile sources and fugitive sources.