Radon in Air Testing

Radon is a radioactive gas that emanates from rocks and soils, tending to concentrate in enclosed spaces like underground mines or houses. Because radon can enter the confined spaces through cracks, gasps,windows etc.(Fig.1）.

Fig.1 Routs which radon enter the confined spaces (http://image.baidu.com/）

Epidemiological studies have provided convincing evidence of an association between indoor radon exposure and lung cancer, even at the relatively low radon levels commonly found in residential buildings. Based on that evidence, radon was classified as a human carcinogen by the International Agency for Research on Cancer in 1988. But it still is difficult to detect as radon is invisible and produces no odor. Many people were exposed to a high concentration of radon for a long time which will be harmful to health. Therefore the environmental analytical testing of radon is necessary and essential, especially after the building was just built or just decorated.

Measurement standards follow:

• International Commission on Radiological Protection

• Radiation Protection Agencies

• United States Environmental Protection Agency

• United Nations Scientific Committee on the Effects of Atomic Radiation

• US EPA Standard

• World Health Organization

• National Council on Radiation Protection and Measurements

• Code for indoor environmental pollution control of civil building engineering (GB50325-2010)

• Indoor air quality STANDARD (GB/T18883-2002)

Alfa Chemistry provides multiple measurements for radon in the following areas:

• Analysis in homes

• Analysis in large buildings

• Diagnostic analysis for mitigation and post-mitigation

• Diagnostic analysis to assess radon emanation from building materials

• Exposure assessment in epidemiologic studies

Equipment for the measurement of radon at Alfa Chemistry :

• Alpha-track Detector (ATD)

• Activated Charcoal Detector (ACD)

• Electret Ion Chamber (EIC)

• Electronic Integrating Device (EID)

• Continuous Radon Monitor (CRM)

• Double Track Detector (DTD)

• Two-Filter Method (TFM)

• Continuous Thoron Monitor (CTM)

• Other measurement instruments

Alfa Chemistry is equipped with advanced equipment and professional responsible staff on the measurement for radon in air. We promise to offer services with the most competitive price and reliable data to our clients. Please don't hesitate to contact us for more information.