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

Measurement of Air Content in Concrete01:23

Measurement of Air Content in Concrete

172
Air content measurement in concrete is critical for ensuring structural integrity and durability of concrete structures, especially in environments prone to severe weather conditions. Accurate air content analysis optimizes concrete's resistance to freeze-thaw cycles and enhances its workability and strength. Several methods are standardized under ASTM guidelines to measure the air content in fresh concrete, each suitable for different concrete types and conditions.
The pressure method,...
172

You might also read

Related Articles

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

Sort by
Same author

Relation of wind direction and coal terminal activity patterns with air pollution burden in a community bordering a coal export terminal, Curtis Bay, Maryland, USA.

Air quality, atmosphere, & health·2025
Same author

Evaluating consistency of PM<sub>2.5</sub> chemical composition measurement in the Chemical Speciation Network (CSN) over time.

Journal of the Air & Waste Management Association (1995)·2025
Same author

Response from the authors of "Absorption photometry of patterned deposits on IMPROVE PTFE filters".

Journal of the Air & Waste Management Association (1995)·2025
Same author

Absorption photometry of patterned deposits on IMPROVE PTFE filters.

Journal of the Air & Waste Management Association (1995)·2024
Same author

Spatial and Seasonal Variability of Remote and Urban Speciated Fine Particulate Matter in the United States.

Journal of geophysical research. Atmospheres : JGR·2024
Same author

Fugitive gypsum dust deposition on a neighboring wildlife refuge, Antioch Dunes, California, USA.

Journal of the Air & Waste Management Association (1995)·2023
Same journal

From landfills to resources: Comprehensive characterization of industrial and commercial waste to support recovery pathways.

Journal of the Air & Waste Management Association (1995)·2026
Same journal

Urban ozone nonattainment: Interconnected challenges in the Intermountain Western U.S.

Journal of the Air & Waste Management Association (1995)·2026
Same journal

DynLink-AQ: Adaptive inter-station connectivity for multi-pollutant, multi-horizon air quality forecasting across Delhi.

Journal of the Air & Waste Management Association (1995)·2026
Same journal

Polonium-210 levels in placental maternal-fetal barrier: A pilot study conducted in the city of Sao Paulo, Brazil.

Journal of the Air & Waste Management Association (1995)·2026
Same journal

China's carbon emissions trading system (ETS) helps the country slow down industrial solid waste accumulation.

Journal of the Air & Waste Management Association (1995)·2026
Same journal

Pyrolysis technologies for valorisation of healthcare waste: A review on processes, products, and challenges.

Journal of the Air & Waste Management Association (1995)·2026
See all related articles

Related Experiment Video

Updated: Jul 15, 2025

Composition and Distribution Analysis of Bioaerosols Under Different Environmental Conditions
05:45

Composition and Distribution Analysis of Bioaerosols Under Different Environmental Conditions

Published on: January 7, 2019

10.7K

Evaluating IMPROVE PM2.5 element measurements.

Nicholas J Spada1, Sinan Yatkin1, Jason Giacomo1

  • 1Air Quality Research Center, University of California, Davis, CA, USA.

Journal of the Air & Waste Management Association (1995)
|September 28, 2023
PubMed
Summary
This summary is machine-generated.

New X-ray fluorescence (XRF) instruments in the Interagency Monitoring of PROtected Visual Environments (IMPROVE) network show good agreement for most elements. Light elements like sodium and magnesium were affected by the method change, with old instruments overestimating and new ones slightly underestimating.

More Related Videos

Measuring Sub-23 Nanometer Real Driving Particle Number Emissions Using the Portable DownToTen Sampling System
08:59

Measuring Sub-23 Nanometer Real Driving Particle Number Emissions Using the Portable DownToTen Sampling System

Published on: May 22, 2020

5.5K
Visualizing Field Data Collection Procedures of Exposure and Biomarker Assessments for the Household Air Pollution Intervention Network Trial in India
09:33

Visualizing Field Data Collection Procedures of Exposure and Biomarker Assessments for the Household Air Pollution Intervention Network Trial in India

Published on: December 23, 2022

2.3K

Related Experiment Videos

Last Updated: Jul 15, 2025

Composition and Distribution Analysis of Bioaerosols Under Different Environmental Conditions
05:45

Composition and Distribution Analysis of Bioaerosols Under Different Environmental Conditions

Published on: January 7, 2019

10.7K
Measuring Sub-23 Nanometer Real Driving Particle Number Emissions Using the Portable DownToTen Sampling System
08:59

Measuring Sub-23 Nanometer Real Driving Particle Number Emissions Using the Portable DownToTen Sampling System

Published on: May 22, 2020

5.5K
Visualizing Field Data Collection Procedures of Exposure and Biomarker Assessments for the Household Air Pollution Intervention Network Trial in India
09:33

Visualizing Field Data Collection Procedures of Exposure and Biomarker Assessments for the Household Air Pollution Intervention Network Trial in India

Published on: December 23, 2022

2.3K

Area of Science:

  • Environmental Science
  • Analytical Chemistry
  • Atmospheric Science

Background:

  • The Interagency Monitoring of PROtected Visual Environments (IMPROVE) network has analyzed airborne particulate matter (PM) elemental composition since 1988.
  • X-ray fluorescence (XRF) is a key technique used for chemical speciation of PM samples.
  • A transition to new XRF instruments occurred in 2011, necessitating performance evaluation.

Purpose of the Study:

  • To evaluate the performance of new XRF instruments against older ones within the IMPROVE network.
  • To identify and quantify discrepancies in elemental measurements due to the instrumentation change.
  • To inform data users about potential impacts on longitudinal air quality analyses.

Main Methods:

  • Archived PM samples from three IMPROVE sites were re-analyzed using the new XRF instruments.
  • Measurements from new and old XRF instruments were compared for various elements.
  • XRF sulfur measurements were compared with collocated ion chromatography sulfate data.
  • Elemental ratios were compared to expected values for soil-derived PM.

Main Results:

  • Good agreement (slopes within 10%) was observed for most elements above detection limits (e.g., S, Cl, K, Ti, V, Mn, Fe, Cu, Zn, Se, Pb).
  • Significant differences were found for light elements (Na, Mg) at a coastal site due to sea salt interference and old correction methods.
  • New instruments show improved precision for sulfur but a slight underestimation; they better resolve Al and Si peaks.
  • Site-specific particle compositions revealed different measurement interferences.

Conclusions:

  • The change in XRF instrumentation within the IMPROVE network has implications for longitudinal data analysis.
  • Light elements (Na, Mg) and sulfur measurements are particularly affected by the method change.
  • Users should consider these findings when interpreting data related to sea salt and crustal sources, especially for historical trend analyses.