Periodic and Continuous are what types of monitoring?

• A. Area Monitoring
• B. Air Monitoring
• C. Ground Monitoring
• D. Water Monitoring

Answer: (A)

Periodic and Continuous describe how monitoring is carried out over a defined space. Area monitoring involves surveying a geographic region to detect changes or hazards across that space, rather than focusing on a single point or sample. When monitoring an area, you can perform periodic monitoring—taking measurements at set intervals; or continuous monitoring—collecting data continuously with sensors. Using both modes allows you to capture time trends and sudden changes in the area’s conditions. Other types specify what is being measured (air, water, ground) rather than how the monitoring is conducted, so the terms Periodic and Continuous align with area monitoring.