Lexikon

121§ StrlSchG - Determination of areas; authorisation to issue ordinances

Act on Protection against the Harmful Effects of Ionising Radiation (Radiation Protection Act - StrlSchG) §121 Determination of areas; authorisation...

A

Activity concentration, radon

Radon activity concentration refers to the number of radon decays per second and volume. The unit is becquerels per cubic metre (Bq/m³).In the...

Alpha radiation

Alpha radiation or α-radiation is one of three ionising radiations according to Rutherford. During the radioactive decay of...

Approved authority

RadonTec is an authority approved by the Federal Office for Radiation Protection according to § 155 paragraph 4 of the Radiation Protection Ordinance...

B

Becquerel per cubic metre - Bq/m³

Radon activity concentration is measured in becquerels per cubic metre.The measure of radon activity is the becquerel (Bq), which indicates the...

Beta radiation

Beta radiation or β-radiation is one of Rutherford's ionising radiations, along with alpha and gamma radiation.Beta radiation is a...

BfS

Federal Office for Radiation Protection in Germany

BMU

Federal Ministry for the Environment, Nature Conservation and Nuclear Safety in Germany

Building

Structures that can be entered by people and serve to protect them. If a building is not tight where it touches the ground, radon penetrates into the...

C

Carcinogenic substance I radon

In the environment occuring substance, from which a carcinogenic effect on living beings can be emitted and to which humans are involuntarily...

Control measurement I radon

After the completion of a new building or renovation measures, measurements of the radon concentration in the room air are required promptly. By...

Convection

Mass transfer due to a (air) pressure drop, quick and directed process. By convection, radon can get into the building through the building ground:...

D

Design value I radon

Value, which is the basis of the planning of a new building or renovation measure and which should be achieved if possible (for example to reduce the...

Diffusion

Diffusion is a naturally occurring physical process that balances differences in concentration in liquids or gases without external influence. It is...

E

Emanation I radon

Radon release from the solid phase of the rock and soil matrix in the surrounding air and / or water-filled pore space, in micro-cracks of the...

Equilibrium Equivalent Concentration (EEC) I radon

When measuring radon via its follow-up nuclide concentration in the air, a conversion formula is required. Here, the equilibrium equivalent radon...

Exhalation I radon

Exhaling is the escape of gases from a firm solid and thus the transfer of radon from the ground or rock in free perception or from a building...

Exhalation measurements I radon

The measurement of the radon release or exhalation rate of radon from a material is done with passive dosimeters (e.g. activated carbon load cells,...

Exhalation rate

Radon exhalation per area and unit of time.

F

Foundation soil analysis, radon

A radon foundation soil analysis is carried out to assess the goegenic radon potential. In addition to radon soil gas measurements, the ambient...

H

Half-life

Time in which half of the radioactive nuclei of a substance decays. The half-life von radon is 3,8 days.

HOAI

Fee schedule for architects and engineers.

I

Indoor air evaluation measurements I radon

Long-term measurements are used to evaluate a radon concentration in the interior (annual mean) carried out over a period of at least 2 - 3 months...

Indoor air overview measurements I radon

Overview measurements of indoor air on radon are carried out over several days to a few weeks. There are simultaneous measurements in several living...

Indoor space

Enclosed fixed space within buildings in which people can stay. The WHO guideline for indoor radon is 100 becquerels per cubic meter of air.