Which of the following is a key component when collecting samples?

Recording field observations and who collected the sample is a crucial component of the sample collection process because it enhances the integrity and reliability of the data. Field observations can provide context for the results, such as describing the environmental conditions at the sampling site, noting any unusual occurrences, or identifying potential influences on the samples. Documenting who collected the sample ensures accountability and traceability, which are important for maintaining quality assurance in environmental data collection.

Accurate records are vital in environmental compliance because they facilitate an understanding of the context in which samples were collected, and they help verify that proper procedures were followed. This information can be critical during analysis or if there are questions or challenges regarding the validity of the results.

The other options, while relevant to sample collection, do not encompass the comprehensive importance of maintaining an accurate record of observations and personnel involved, which ultimately supports data integrity and reliability in environmental compliance assessments.