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

The equilibrium factor F.

|August 1, 1983

Summary

This summary is machine-generated.

The equilibrium factor (F) between radon daughters and radon in homes is influenced by ventilation rates. Lower air exchange rates correlate with higher F-factors, impacting indoor radon exposure assessments.

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

Residential radon and lung cancer in Sweden: risk analysis accounting for random error in the exposure assessment.

Health physics·1997

Same author

[Radon in dwellings and lung cancer. Smoking is more than an additional risk increasing factor].

Lakartidningen·1994

Same author

[It is important to measure radon gases in dwellings].

Lakartidningen·1994

Same author

Measurement of radon and radon daughters in indoor air.

IARC scientific publications·1993

Same author

Continuous filter method for radon daughters.

IARC scientific publications·1993

Same author

Recent Swedish experiences in 222Rn control.

Health physics·1990

Same journal

Assessment of Health Risks of Adults and Children Due to Consumption of Uranium in Groundwater from Chengalpattu District, Tamil Nadu, India.

Health physics·2026

Same journal

Radiation Protection Abstracts, Volume 46, Number 1.

Health physics·2026

Same journal

Specialized Radiological Assets for Navigable Two-dimensional and Three-dimensional Virtual and Augmented Reality.

Health physics·2026

Same journal

DoseBusters: A Fully Immersive Virtual Reality Game for Radiation Protection and Detection.

Health physics·2026

Same journal

Radioactivity in Bottled Drinking Water from Greater Dhaka City and Concomitant Ingestion Doses to Consumers.

Health physics·2026

Same journal

Assessment of Radiation Dose and Protection Practices in Neonatal Radiography in NICUs.

Health physics·2026

See all related articles

Area of Science:

Environmental Health
Radiological Protection
Indoor Air Quality

Background:

Radon daughter concentration measurements in dwellings are crucial for applying exposure limits.
The equilibrium factor (F) quantifies the relationship between radon and its decay products.
Understanding F is essential for accurate indoor radon risk assessment.

Purpose of the Study:

To evaluate the equilibrium factor (F) in Swedish dwellings.
To compare measured F-factors with theoretical models, considering the wall effect.
To identify factors influencing F-factors, such as ventilation and occupant behavior.

Main Methods:

Measurements of radon, radon daughters, and air exchange rates were conducted in 225 Swedish dwellings.
Comparison of empirical F-factors with Wicke's theoretical model.

Related Experiment Videos

Statistical analysis of F-factors based on air exchange rate categories.

Main Results:

F-factors varied significantly with air exchange rates.
For low air exchange rates (<0.30 hr⁻¹), 95% of F-factors fell between 0.28 and 0.74 (mean 0.51).
For average (0.30-0.60 hr⁻¹) and high (>0.60 hr⁻¹) air exchange rates, mean F-factors were 0.43 and 0.33, respectively.

Conclusions:

Ventilation rate is a primary factor modifying F-factors in dwellings.
Dwelling location and occupant habits also play a significant role in determining F-factors.
Measured F-factors generally align with theoretical expectations, with variations influenced by environmental and behavioral factors.