Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Search research articles

Related Experiment Videos

Personal sampler for NOx.

E D Palmes, C Tomczyk

American Industrial Hygiene Association Journal

|July 1, 1979

Summary

This summary is machine-generated.

A new personal sampler accurately monitors nitrogen oxides (NOx) and nitrogen dioxide (NO2) in workplace air. This system uses a chromic acid disc to convert nitric oxide (NO) to NO2 for measurement.

Related Concept Videos

You might also read

Related Articles

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

Sort by

Same author

Thermocouples for the measurement of the surface temperature of the skin.

Federation proceedings·2010

Same author

An apparatus and method for the continuous measurement of evaporative water loss from human subjects.

Federation proceedings·2010

Same author

A technic of human calorimetry.

Federation proceedings·2010

Same author

The absorption, excretion, and physiological effect of iodine in normal human subjects.

The Journal of clinical investigation·2010

Same author

Bridging the gap.

Rehabilitation nursing : the official journal of the Association of Rehabilitation Nurses·2001

Same author

Explanation of pressure effects on a nitrogen dioxide (NO2) sampler.

American Industrial Hygiene Association journal·1987

Same journal

Barrier durability of latex and vinyl medical gloves in clinical settings.

American Industrial Hygiene Association journal·2001

Same journal

Microwave emissions from police radar.

American Industrial Hygiene Association journal·2000

Same journal

Assessment of magnetic field exposures for a mortality study at a uranium enrichment plant.

American Industrial Hygiene Association journal·2000

Same journal

An assessment of occupational noise exposures in four construction trades.

American Industrial Hygiene Association journal·2000

Same journal

Prediction of rectal temperature by the Questemp II personal heat strain monitor under low and moderate heat stress.

American Industrial Hygiene Association journal·2000

Same journal

Indoor airborne fiber levels of MMVF in residential and commercial buildings.

American Industrial Hygiene Association journal·2000

See all related articles

Area of Science:

Environmental Science
Occupational Health
Analytical Chemistry

Background:

Workplace air quality monitoring is crucial for occupational health.
Accurate measurement of nitrogen oxides (NOx) and nitrogen dioxide (NO2) is essential for assessing exposure risks.

Purpose of the Study:

To develop and describe a personal sampler system for simultaneous monitoring of NOx and NO2 in workplace environments.
To enable the measurement of nitric oxide (NO) by difference between NOx and NO2 concentrations.

Main Methods:

A personal sampler system was developed, building upon a previously reported NO2 sampler.
The NOx sampler incorporates a chromic acid impregnated disc to convert NO to NO2.
NO2 is trapped using triethanolamine, and both NO2 and trapped NO2 are determined colorimetrically as nitrite. NO is calculated by subtracting NO2 from NOx values.

Related Experiment Videos

Main Results:

The developed NOx sampler provides accurate and reproducible results.
Optimal performance is achieved when the chromic acid disc is in place for 24 hours or less, requiring timely insertion and removal.

Conclusions:

The personal sampler system offers a viable method for monitoring workplace NOx and NO2 levels.
The operational requirement for disc management is considered a minor issue for users.