Background Level and Time Series Variation of Atmospheric Radon Concentrations at Gosan Site in Jeju Island

Song, Jung‐Min; Bu, Jun-Oh; Kim, Won-Hyung; Kang, Chang‐Hee; Ko, Hee-Jung; Chambers, Scott D.

doi:10.5572/kosae.2017.33.2.174

Cited by 3 publications

(1 citation statement)

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“…The tenth percentile of radon concentrations in Korean homes was 18.7 Bq/m 3 (Table 1). In addition, the atmospheric levels of radon are in the order of 10 Bq/m 3 worldwide [45], and in Korea, the atmospheric concentration in the urban area of Seoul was reported to be 7.62 ± 4.11 Bq/m 3 [46], whereas the background level was monitored at 2.48 ± 6.28 Bq/m 3 at Gosan station on Jeju Island [47]. This is comparable to the atmospheric level in Hong Kong (9.3 Bq/m 3 ) [48], when considering the differences in the measurement period, area, and detection method.…”

Section: Indoor Radon In Dwellingsmentioning

confidence: 99%

Experimental Study on CO2 and Radon Mitigations in an Apartment Using a Mechanical Ventilation System

Jeong

Cho

2023

Buildings

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The public interest in indoor air quality has rapidly increased in Korean society, and ventilation systems can play an essential role in improving indoor air quality. This study aims to estimate the reduction in indoor CO2 and radon, which can be effectively mitigated by air exchange, according to the operation of mechanical ventilation in an apartment with the national standard housing size (85 m2) and shape in Korea. The time required to meet Korea’s mandatory indoor CO2 standard (1000 ppm) was 167, 98, 66, and 51 min under air change rates of 0.5, 1.0, 1.5, and 2.0 ACH (air change per hour), respectively. Regarding indoor radon, the removal rate increased with increased ventilation volume, and the minimum concentration level was low and sustained for a prolonged duration. Nonetheless, an air change rate of 0.5 ACH may not offer sufficient ventilation. Additionally, it is imperative to note that indoor radon concentrations tend to escalate swiftly when a mechanical ventilation system is deactivated. Thus, to enhance indoor air quality, it is necessary to reconsider strategies to augment the air change rate and guarantee uninterrupted ventilation.

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Section: Indoor Radon In Dwellingsmentioning

confidence: 99%