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황사 기간 동안에 어린이, 성인, 노인에서의 자각증상과 예방행동에 대한 조사연구
이보은,하은희,박혜숙,권지숙,신경림 韓國學校保健學會 2005 韓國學校保健學會誌 Vol.18 No.1
Purpose: Recently there are scientific evidences for the health effects of Asian dust-storms. Particularly in 2002, the daily average of PM_(10) exceeded 600 and 700 ㎍/㎥ in March and April respectively. We examined the effects of Asian dust-storms on perceived symptoms and preventive behaviors among children, adults, and elders. Method: The subjects of this study were 425 children, 444 adults and 60 elders. A questionnaire survey was carried out on the children and the adults by teachers and on the elders by interviewers to obtain information on demographic variables, perceived symptoms and preventive behaviors, previous respiratory disease, environmental tobacco smoke, and proximity between the house and the road during Asian dust-storms. We analyzed using descriptive statistics, X_(2) test and multiple logistic regression models. After adjustment for potential confounders, we estimated the odds ratios and 95% confidence intervals of the children and the elders for perceived symptoms and preventive behaviors. Result: The elders had a significantly higher prevalence of respiratory symptoms than the other groups. The children had a significantly higher prevalence than the adults in getting URI (1.51), coughing (1.68), rhinorrhea (1.46), fever (2.39) and medication for allergy or asthma (1.90). The children had better behaviors than the elders in closing windows (3.57), taking less outdoor recreational activity (2.59) and staying home (2.60).
이보은,김재근 한국생태학회 2014 Journal of Ecology and Environment Vol.37 No.1
The effect of different turnover time of water on the decomposition of emergent macrophyte litter (Zizania latifoliaGriseb.) was investigated using a microcosm experiment. Microcosm treatment represented different turnover time ofwater; 1, 2, 4 and 8 weeks. The litterbags from each treatment were retrieved every 2 weeks until the 8th week and thewater simultaneously sampled with the litterbag. The dry weight and the content of major cations in the litter, and thecontent of available N, P, and major cations in the water were analyzed. Dry weight loss after 8 weeks indicated the lowerdecay rates under the condition of short turnover time of water. Major cations from the litter and the water showed thatthe leached amounts of K and Mg from the litter were highest in the 2nd week and dramatically decreased from the 4thweek. The dynamics of available nitrogen and phosphorus in the water showed that as the water turnover time was gettinglonger, the amounts of available nitrogen and phosphorus remained higher. These results suggest that wetlands withlonger turnover time of water could maintain the increased nitrogen and phosphorus and no outflow of the nutrientscould cause eutrophication problem.
이보은,박혜숙,김영주,박은애,홍윤철,하은희,Lee, Bo-Eun,Park, Hye-Sook,Kim, Young-Ju,Park, Eun-Ae,Hong, Yun-Chul,Ha, Eun-Hee 대한예방의학회 2004 예방의학회지 Vol.37 No.4
As there have been growing concerns about the adverse effects of air pollution on birth outcome, studies for this area has been carried out in different populations and sites. We reviewed the epidemiologic studies that evaluated the effects of air pollution on birth outcome such as low birth weight and preterm births. We identified the air pollution exposure during pregnancy was related with low birth weight and preterm birth, although there are differences among studies for the critical period of vulnerability. The biological mechanisms whereby air pollution might influence health of fetus are not clearly established. The exposure to carbon monoxide(CO) during pregnancy could increase fetal carboxyhemoglobin and result in tissue hypoxia. On the other hand, ambient particles less than $10{\mu}m$ in aerodynamic diameter($PM_{10}$) could lead to inflammation and increase blood viscosity. Controlling for potential confounders and valid assessment of exposure are the methodological issues remained in these epidemiologic studies. In the future, more studies are needed to investigate the effect of air pollution on preterm birth or stillbirths, considering the various exposure period and the biological mechanism.
서식지 적합 지수를 이용한 멸종위기식물 단양쑥부쟁이와 층층둥굴레의 대체서식지 평가
이보은,김정욱,김남일,김재근 한국습지학회 2017 한국습지학회지 Vol.19 No.4
4대강 사업 공사로 인해 한강수계에서 자생하던 멸종위기 야생생물 II급인 단양쑥부쟁이와 층층둥굴레의 서식지가 소실되어 이에 대한 대안으로 대체서식지가 조성되었다. 본 연구에서는 조성된 대체서식지가 각 종의 서식에 적합 한지를 파악하기 위하여 서식지 적합 지수(Habitat Suitability Index; HSI)를 이용하였다. 2015년 10월부터 2016년 7월까지 경기도 여주 강천섬과 섬강 일대에 위치한 단양쑥부쟁이 대체서식지와 강천섬과 충북 충주 영죽지구에 위 치한 층층둥굴레 대체서식지를 대상으로 HSI를 평가하였다. 단양쑥부쟁이의 평가 변수로는 서식 기질(매몰되지 않 은 자갈의 비율), 고도 범위, 토양 양분, 광 조건 4가지를 선정하였고, 층층둥굴레는 토성, 광 조건, 동반 위해종의 피도 3가지를 선정하여 HSI를 이용한 대체서식지 적합성 평가를 수행하였다. 평가 결과, 강천섬의 단양쑥부쟁이 (HSI = 0.839)와 층층둥굴레(HSI = 0.846)의 대체서식지 모두 비교적 높은 적합지수를 나타내었으나, 섬강 일대의 단양쑥부쟁이 대체서식지와 영죽지구의 층층둥굴레 대체서식지는 대체서식지로서 적합하지 않음으로 판단되었다 (HSI = 0). 또한 이들 부적합한 대체서식지의 경우, 자생지 인근에서 서식에 적합한 장소를 새로이 선정하는 것이 더 바람직할 것으로 판단된다. 본 연구는 식물종에 대해 HSI를 적용한 국내 최초의 시도로, 식물 서식처에 대한 HSI의 효용성을 증명하였다. As a result of the Four-River Restoration Project in Korea, the habitat of endangered plant species of Aster altaicus var. uchiyamae and Polygonatum stenophyllum, which had been natively grown in the riparian zone of Namhan River, was destroyed and artificial replacement habitats were created. In this study, Habitat Suitability Index (HSI) was used to determine whether the replacement habitats are suitable for each species or not. From October 2015 to July 2016, Habitat Evaluate Procedures (HEP) were conducted on two replacement habitats of A. altaicus var. uchiyamae (Gangcheonsum and Sum-River) and on two replacement habitats of P. stenophyllum (Gangcheonsum and Youngjuk) in the Namhan River watershed. As evaluation parameters for A. altaicus var. uchiyamae habitat, habitat matrix (ratio of unburied gravel), height above the ordinary water level, soil nutrients, and light conditions were selected and for P. stenophyllum habitat, soil texture, light conditions, and coverage of companion species were selected. HSI was applied to evaluate the suitability of each replacement habitat. According to the result of the evaluation, replacement habitats of A. altaicus var. uchiyamae and P. stenophyllum located in Gangcheonsum have relatively high HSI values as 0.839 and 0.846, respectively. On the other hand, replacement habitats of A. altaicus var. uchiyamae in Sum-River and P. stenophyllum in Youngjuk zone have HSI value of 0, indicating unsuitable habitats for these species. This is the first attempt to apply HSI for plant species in Korea and proved the usefulness of HSI on plants.