Answer :
Final answer:
Annual checks of air sampling-type detector ports are part of required maintenance to ensure accuracy and adherence to environmental standards.
Explanation:
The question pertains to the maintenance and testing protocols for air sampling-type detectors used in monitoring environmental parameters. Among the provided options, checking sample ports annually is a standard procedure to ensure that the equipment is operating correctly and providing accurate data. Thus, each sample port of an air sampling-type detector should be checked annually. Other examples of quantification related to environmental monitoring include measures such as recording data like temperature, pH, conductivity, and dissolved oxygen at each monitored site. It is also crucial to adhere to environmental regulations, such as those that pertain to the 99th percentile of 1-hour daily maximum concentrations of certain pollutants, which should not be exceeded more than once per year, averaged over three years.
