What is the purpose of vapor recovery systems in USTs?

The purpose of vapor recovery systems in underground storage tanks (USTs) is to capture vapors generated during the transfer of fuel or other volatile liquids. During the dispensing process, vapors can escape into the atmosphere, contributing to air pollution and potentially leading to hazardous environmental conditions. Vapor recovery systems are designed to collect these vapors and redirect them back into the tank or to a recovery system, thus reducing emissions and protecting air quality. This technology is particularly important in minimizing the release of volatile organic compounds (VOCs), which can contribute to smog and pose health risks.

While enhancing fuel efficiency and preventing rusting are important aspects of fuel management and storage, they do not pertain to the primary function of vapor recovery systems. Similarly, maintaining the temperature of the stored product is not related to the goals of vapor recovery, which specifically focuses on managing vapors during product transfer to mitigate environmental impacts. This distinction emphasizes the key role that vapor recovery systems play in safeguarding public health and the environment by mitigating air pollution.