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Study On Radon Concentration Variation During Subway Construction.

Bo Tan¹, Guangyuan Yang¹, Shuhui Fu¹

¹School of Emergency Management and Safety Engineering, China University of Mining and Technology, Beijing 100083, China.

Radiation Protection Dosimetry

|November 17, 2020

Summary

This summary is machine-generated.

Radon concentration in subway construction sites, like Beijing

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Area of Science:

Environmental Science
Occupational Health

Background:

High radon concentrations in underground construction pose health risks to workers.
Subway construction projects create unique indoor environments with potential radon accumulation.

Purpose of the Study:

To analyze radon concentration changes over a year in a subway construction site.
To identify factors influencing radon levels and their spatial distribution.

Main Methods:

Continuous radon monitoring over one year at Beijing Subway Project No. 16.
Spatial analysis of radon concentration across different construction areas.
Correlation analysis with environmental factors like temperature and air mobility.

Main Results:

Radon levels ranged from 5 to 500 Bq/m3.
Concentrations peaked at noon and showed seasonal variation, with higher levels in summer.
Heading roadways had the highest radon levels, while station halls had the lowest.

Conclusions:

Ambient temperature and air mobility are key factors affecting radon concentration.
Understanding these dynamics is crucial for worker safety in subway construction.