Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Contaminants and Errors01:16

Contaminants and Errors

373
Effective sample preparation is crucial for accurate and reliable laboratory analysis. During this process, two significant sources of error can arise: concentration bias from improper sample splitting and contamination caused by methods used to reduce particle size, such as grinding or homogenization. Identifying and minimizing these potential errors is crucial to ensuring the validity of the analysis.
Another key consideration is determining the appropriate number of samples required to...
373
Movement Joints in Buildings01:27

Movement Joints in Buildings

348
Movement joints in buildings are essential design elements that accommodate inevitable motions caused by various factors such as temperature changes, moisture content variations, and structural deflections. These motions, if not considered in design and construction, can lead to unsightly or dangerous damage. Movement joints are incorporated in different forms to manage these stresses and allow materials to move without causing distress.
The simplest type of movement joints, working joints, are...
348
Types of Building Stone01:30

Types of Building Stone

446
Building stones, essential materials for construction, are extracted from natural rock deposits and processed into specific forms and dimensions suitable for various building applications. These stones are broadly classified into three types based on their geological formation: igneous, sedimentary, and metamorphic.
Igneous rocks are formed from the solidification of magma or lava. An example is granite, known for its durability and resistance to weathering, making it ideal for parts of...
446
Types of Building Separation Joints01:23

Types of Building Separation Joints

607
Building separation joints divide large or complex building structures into smaller, discrete units that can move independently. These joints are categorized into three types: volume-change joints, settlement joints, and seismic separation joints.
Volume-change joints address the effects of expansion and contraction due to temperature and moisture variations. They are strategically placed at discontinuities in a building's mass where cracking is most likely and are spaced about 150 to 200...
607
Design Example: Sustainability in Concrete Building01:26

Design Example: Sustainability in Concrete Building

417
As the construction industry moves towards more eco-friendly practices, concrete's adaptability and its ability to incorporate sustainable features make it a key material in the drive towards greener building solutions.
There are multiple approaches to achieve sustainability in a commercial concrete building. For instance, construct a concrete parking area under the building, utilizing pervious concrete paver blocks in open areas to facilitate rainwater collection through an underground...
417
Genetic Screens02:46

Genetic Screens

5.7K
Genetic screens are tools used to identify genes and mutations responsible for phenotypes of interest. Genetic screens help identify individuals or a group of people at risk of developing  genetic diseases and help them with early intervention, targeted therapy, and reproductive options.
Forward genetic screens
Forward or “classical” genetic screens involve creating random mutations in an organism’s DNA using radiation, mutagens, or insertion of additional bases, which...
5.7K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Risk-based tiered residential methamphetamine remediation limits.

Journal of occupational and environmental hygiene·2026
Same author

Risk based tiered residential methamphetamine remediation limits.

medRxiv : the preprint server for health sciences·2026
Same author

Survey of nitrate and nitrite contents of vegetables grown in Korea.

Food additives and contaminants·2003
Same author

Serum N-terminal midfragment vs. intact osteocalcin immunoradiometric assay as markers for bone turnover and bone loss in hemodialysis patients.

Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie·2003
Same author

The coxsackievirus and adenovirus receptor acts as a tumour suppressor in malignant glioma cells.

British journal of cancer·2003
Same author

Juvenile hormone acid and ecdysteroid together induce competence for metamorphosis of the Verson's gland in Manduca sexta.

Journal of insect physiology·2003

Related Experiment Video

Updated: Feb 4, 2026

A General Method for Evaluating Deep Brain Stimulation Effects on Intravenous Methamphetamine Self-Administration
09:16

A General Method for Evaluating Deep Brain Stimulation Effects on Intravenous Methamphetamine Self-Administration

Published on: January 22, 2016

15.8K

Evaluating screening test protocols to assess methamphetamine contamination in buildings.

J E Dennison1, M Kim2, F Sancier-Barbosa2

  • 1Century Environmental Hygiene, LLC, Fort Collins, Colorado.

Journal of Occupational and Environmental Hygiene
|February 2, 2026
PubMed
Summary

Simplified meth screening tests accurately identify contamination in buildings. These less costly methods minimize false negatives and can be a valid approach for meth sampling, identifying hotspots for targeted testing.

Keywords:
Drugexposureindoor environmental qualitymethscreening testwipe sampling

More Related Videos

Building Up a High-throughput Screening Platform to Assess the Heterogeneity of HER2 Gene Amplification in Breast Cancers
11:34

Building Up a High-throughput Screening Platform to Assess the Heterogeneity of HER2 Gene Amplification in Breast Cancers

Published on: December 5, 2017

13.1K
Author Spotlight: Assessment of Environmental and Drug-Induced Behavioral Changes in Adult Zebrafish
08:36

Author Spotlight: Assessment of Environmental and Drug-Induced Behavioral Changes in Adult Zebrafish

Published on: November 3, 2023

2.4K

Related Experiment Videos

Last Updated: Feb 4, 2026

A General Method for Evaluating Deep Brain Stimulation Effects on Intravenous Methamphetamine Self-Administration
09:16

A General Method for Evaluating Deep Brain Stimulation Effects on Intravenous Methamphetamine Self-Administration

Published on: January 22, 2016

15.8K
Building Up a High-throughput Screening Platform to Assess the Heterogeneity of HER2 Gene Amplification in Breast Cancers
11:34

Building Up a High-throughput Screening Platform to Assess the Heterogeneity of HER2 Gene Amplification in Breast Cancers

Published on: December 5, 2017

13.1K
Author Spotlight: Assessment of Environmental and Drug-Induced Behavioral Changes in Adult Zebrafish
08:36

Author Spotlight: Assessment of Environmental and Drug-Induced Behavioral Changes in Adult Zebrafish

Published on: November 3, 2023

2.4K

Area of Science:

  • Environmental Science
  • Forensic Science
  • Public Health

Background:

  • Methamphetamine (meth) contamination in buildings necessitates regulatory sampling, which can be expensive.
  • Current screening tests use fewer samples and biased collection to reduce costs and minimize false negatives (FN), but their accuracy is unproven.

Purpose of the Study:

  • To evaluate the accuracy of two less costly meth screening protocols compared to the comprehensive Colorado regulatory protocol.
  • To determine the frequency of false positive (FP) and false negative (FN) results for the screening tests.
  • To identify potential thresholds for screening tests to trigger further comprehensive testing.

Main Methods:

  • Compared results from two Colorado screening protocols against the comprehensive regulatory protocol as the benchmark.
  • Evaluated screening tests for FP and FN results, with a focus on FN occurrences.
  • Utilized logistic regression to determine FN rates across various threshold concentrations.
  • Calculated location-specific and whole-house average meth concentrations to identify contamination hotspots.

Main Results:

  • Few false negatives (FN) were observed, and in those cases, contamination levels above regulatory standards were minimal.
  • Both screening tests demonstrated FN rates approaching 0% when a threshold lower than the regulatory standard was applied.
  • Identified specific hotspots for meth contamination, including kitchen fan/stove areas (41-fold increase), bathroom exhaust fans (47-fold increase), and furnace/ductwork systems (17-fold increase) compared to average house concentrations.

Conclusions:

  • Simplified, less costly meth sampling protocols can serve as a valid screening approach for building contamination.
  • Establishing appropriate thresholds for screening tests can effectively trigger additional, more comprehensive testing when necessary.
  • A validated sampling protocol, including aliquots from identified hotspots, is proposed for effective meth screening.