Which of the following is NOT a leading indicator in an environmental monitoring program that aims to prevent pollution incidents? Metric Description Air quality index trends Tracking the trends of air quality indices over time Water sample testing frequency Regular sampling and testing of water quality Equipment maintenance schedules Regular maintenance to prevent equipment failure Spill occurrence reports Counting the number of reported spills
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✓ Correct answer: A. Spill occurrence reportsAnswer: Spill occurrence reports A leading indicator is predictive and preventive, allowing for measures to be taken before an incident occurs. Air quality index trends, water sample testing frequency, and equipment maintenance schedules provide data that can help prevent incidents. However, spill occurrence reports are lagging indicators because they record incidents that have already occurred.
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