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Mercury (elemental) in atmospheric pressure measurement (qualitative probe)

Published: August 9, 2026Updated: August 16, 2026

This test measures the presence of elemental mercury in atmospheric air samples using a specialized probe. It helps assess exposure to mercury vapor in specific environments.

Quick summary

["This test is not typically performed on individual patients for routine health monitoring; it’s used in occupational or environmental health settings."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
20052-7
Short code
Press Atmosphere Mercury Column
Synonyms
Press Atmosphere Mercury Column
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
mercury-column
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

What This Test Measures

This test detects the concentration of elemental mercury (Hg⁰) in air samples collected under controlled atmospheric pressure conditions. The probe method identifies mercury vapor, which can be harmful if inhaled over time.

Why It Might Be Ordered

Healthcare providers may order this test for individuals exposed to mercury in workplaces (e.g., mining, electronics manufacturing) or areas with industrial pollution. It helps monitor occupational hazards or environmental contamination.

Sample Collection and Preparation

Air samples are collected using specialized probes designed to capture mercury vapor. The sample is analyzed in a laboratory setting using a qualitative probe method, which does not provide a quantitative measurement of mercury concentration.

Clinical Significance

Exposure to elemental mercury can lead to respiratory irritation, neurological symptoms, or long-term health effects, depending on duration and level of exposure. This test is critical for identifying high-risk environments and guiding protective measures.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Frequently asked questions

Why would my doctor order this test?
Your doctor may order this test if you work in an industry with known mercury exposure (e.g., manufacturing, mining) or live in an area with suspected environmental mercury contamination. It helps assess potential risks to your health.
What does a positive result mean?
A positive result indicates the presence of elemental mercury vapor in the air sample. This finding suggests exposure that may require protective measures, such as wearing respirators or adjusting work conditions.
How is the sample collected for this test?
Air samples are collected using specialized probes that capture mercury vapor. The sample is analyzed in a lab using a qualitative probe method, which does not provide a specific concentration value but confirms mercury presence.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy