Sample

{
  "id": "MLC-T-ENV-024693",
  "term": "Sample",
  "field": "Environment",
  "definition": "1. The water that is analyzed for the presence of USEPA-regulated drinking water contaminants. Depending on the regulation, USEPA requires water systems and states to take samples from source water, from water leaving the treatment facility, or from the taps of selected consumers.\n\n2. A portion of material to be analyzed that is contained in single or multiple containers.\n\n3. The water that is analyzed for the presence of EPA-regulated drinking water contaminants. Depending on the regulation, EPA requires water systems and states to take samples from source water, from water leaving the treatment facility, or from the taps of selected consumers.\n\n4. A subset of the population. Elements are selected intentionally as a representation of the population being studied.\n\n5. Monitoring activity (e.g., ambient samples, measurements, observations, QC samples) that is performed at a specific date, time, and location in order to characterize the environment.\n\n6. A small part of something designed to show the nature or quality of the whole. Exposure-related measurements are usually samples of environmental or ambient media, exposures of a small portion of a population for a short time, or biological samples, all for the purpose of inferring the nature and quality of parameters important to evaluating exposure.\n\n7. A subset of the units from a frame. A sample may also be a subset of resource units from a population or a set of sampling units.\n\n8. A portion or piece of a whole. A selected subset of a population or subset of whatever is being studied. For example, in a study of people the sample is a number of people chosen from a larger population. An environmental sample (for example, a small amount of soil or water) might be collected to measure contamination in the environment at a specific location.\n\n9. A selected subset of a population. A sample may be random or non-random and it may be representative or non-representative.\n\n10. A specimen that is taken from food and tested for the purpose of identifying a foodborne pathogen or various kinds of chemical contaminants in food.\n\n11. The set of observational units (wafers, people, etc) whose properties our study is to observe. When we select a sample by scientific randomization, we are more easily able to generalize our conclusions to the population of interest. As opposed to population. For a given characteristic, the collection of measurements that are actually observed.\n\n12. A part of a larger whole or a single item of a group; a finite subset of a statistical population. A representative sample serves to provide data or information concerning the properties of the whole group or population. {OW/EAD} {OPP} {OAR/OAQPS} {ORCR}\n\n13. A part of a larger whole or a single item of a group; a finite subset of a statistical population. A representative sample serves to provide data or information concerning the properties of the whole group or population.\n\n14. A portion or piece of a whole. A selected subset of a population or subset of whatever is being studied. For example, in a study of people the sample is a number of people chosen from a larger population. An environmental sample (for example, a small amount of soil or water) might be collected to measure contamination in the environment at a specific location. [ATSDR 2004]\n\n15. A specimen of a whole entity small enough to involve no threat or damage to the whole; an aliquot. A selected subset of a population; a sample may be random or nonrandom (haphazard); representative or nonrepresentative. [CancerWeb 2005]\n\n16. A selected subset of a population. A sample may be random or non-random and it may be representative or non-representative. [CDC 2005]\n\n17. A sub-group of the population of interest that has been selected for study. [ESOMAR 2001]\n\n18. A specimen that is taken from food and tested for the purpose of identifying a foodborne pathogen or various kinds of chemical contaminants in food. [FDA 2001]\n\n19. Material collected from a source other than an animal or man for laboratory analysis (such as water sample or soil sample). [MERREA 2005]\n\n20. The set of observational units (wafers, people, etc) whose properties our study is to observe. When we select a sample by scientific randomization, we are more easily able to generalize our conclusions to the population of interest. As opposed to population. For a given characteristic, the collection of measurements that are actually observed. [NIST/SEMATECH 2005b]\n\n21. A sample is a group of units selected from a larger group (the population). By studying the sample it is hoped to draw valid conclusions about the larger group. A sample is generally selected for study because the population is too large to study in its entirety. The sample should be representative of the general population. This is often best achieved by random sampling. Also, before collecting the sample, it is important that the researcher carefully and completely defines the population, including a description of the members to be included. [STEPS 1997]\n\n22. Water that is analyzed for the presence of EPA-regulated drinking water contaminants. Depending on the regulation, EPA requires water systems and states to take samples from source water, from water leaving the treatment facility, or from the taps of selected consumers.",
  "subject": "Water",
  "references": [
    "Safe Drinking Water Act Glossary",
    "Underground Storage Tank Sites Guide Glossary",
    "Drinking Water Glossary",
    "Program Evaluation Glossary",
    "STORET Legacy Data Center Glossary",
    "Exposure Factors Handbook: Glossary",
    "Environmental Modeling and Assessment Program (EMAP) Master Glossary",
    "ATSDR 2004",
    "CDC 2005",
    "FDA 2001",
    "NIST/SEMATECH 2005b",
    "Forum on Environmental Measurements (FEM) Glossary",
    "Thesaurus of Terms Used in Microbial Risk Assessment",
    "Drinking Water Glossary 2009"
  ],
  "url": "https://mlchart.com/terminology/environment/sample/"
}