Various environmental factors can contribute to the need for calibration. Environmental conditions such as temperature, humidity, pressure, and exposure to contaminants can affect the performance and accuracy of measurement devices. For example, temperature variations can impact the readings of thermometers and other temperature-sensitive instruments. Similarly, high humidity levels can introduce moisture-related errors in certain equipment. Exposure to pollutants or corrosive substances can degrade the performance of sensors and affect measurement accuracy. Regular calibration helps account for these environmental factors, ensuring that devices remain accurate and reliable despite changing conditions, thereby maintaining measurement integrity.