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논문 기본 정보

자료유형
학술저널
저자정보
저널정보
한국독성학회 Toxicological Research Toxicological Research Vol.30 No.3
발행연도
2014.9
수록면
205 - 210 (6page)

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Didecyldimethylammonium chloride (DDAC) is used for various purposes, such as a fungicide for coolants, an antiseptic for wood, and disinfectant for cleaning. Despite the increasing likelihood of DDAC inhalation, available data on its toxicity from inhalation are scarce. Therefore, this study was aimed at confirming the toxicity of DDAC after inhalation exposure for 2 wk. Male Sprague-Dawley rats were exposed to approximately 0.15 mg/㎥, 0.6 mg/㎥, and 3.6 mg/㎥ DDAC aerosols in whole-body exposure chambers. After DDAC exposure for 2 wk, effects of DDAC on body weight, blood, bronchoalveolar lavage (BAL), and the lungs were verified. The mass median aerodynamic diameter of DDAC aerosols was 1.86 μm and the geometric standard deviation was 2.75. The concentrations of DDAC aerosols for the low, medium, and high groups were 0.15 ± 0.15 mg/㎥, 0.58 ± 0.40 mg/㎥, and 3.63 ± 1.56 mg/㎥, respectively. Body weight gain was significantly influenced by DDAC exposure. In the high group, a body weight decrease of 2.6 g was observed, whereas a 25.8 g increase was observed in the normal control group after the first 3 days. The low and medium groups showed 23.3 g and 20.4 g increases, respectively, after the first 3 days. Decreases in body weight were recovered during the next 4 days. In contrast, no changes were noted in hematological and blood biochemistry parameters after DDAC exposure. Furthermore, only mild effects were observed on bronchoalveolar cell differentiation counts and cell damage parameters in the BAL fluids of the medium and high groups. Although inflammatory cell infiltration and interstitial pneumonia were partially observed, fibrosis was not found in the lungs of the medium and high groups. In conclusion, body weight gain and the lungs were mainly affected by DDAC exposure. The noobserved-adverse-effect level (NOAEL) for DDAC was determined as 0.15 mg/㎥.
#Biocide #Didecyldimethylammonium chloride #Inhalation

목차

INTRODUCTION
MATERIALS AND METHODS
RESULTS
DISCUSSION
REFERENCES

참고문헌 (11)

참고문헌 신청
European Union / 2012 / Regulation (EU) No 528/2012 of the European parliament and of the council of 22 May 2012 concerning the making available on the market and use of biocidal products, Annex V / Official Journal of the European Union :105~107 google schola United States Environmental Protection Agency / Pesticide registration manual: Chapter 4 - Additional considerations for antimicrobial products google schola Kim, K. W. / 2014 / Humidifier disinfectantassociated children’s interstitial lung disease / Am. J. Respir. Crit. Care Med 189:48~56 google schola Yang, H. J. / 2013 / Inhalation toxicity of humidifier disinfectants as a risk factor of children’s interstitial lung disease in Korea: a case-control study / PLoS One 8:e64430 google schola The Korean Society of Environmental health and Toxicology / 2011 / Environmental and Toxicology Forum Report on Humidifier Biocide google schola

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