Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Byoung-Kyu Ju"'
Autor:
Hyun-Joong Kang, Hee-Jin Park, Oh-Kyung Kwon, Won-Seok Lee, Dong-Hwan Jeong, Byoung-Kyu Ju, Jung-Hwan Kwon
Publikováno v:
Environmental Health and Toxicology, Vol 33, Iss 3 (2018)
Municipal sewage treatment plants (STPs) are thought to be important point sources of microplastics in freshwater systems and many peer-reviewed articles have been published on this issue since mid-2010s. In this review, we summarize existing literat
Externí odkaz:
https://doaj.org/article/6acd9fbd51304b73b79aa34862f79450
Autor:
Dong Hwan Jeong, Pil Gon Kim, Gwonbo Kim, Jung Hwan Kwon, Wonseok Lee, Hyen Mi Chung, Min Ju Oh, Byoung Kyu Ju, Hyun Joong Kang, Hee Jin Park
Publikováno v:
Environmental sciencetechnology. 54(3)
Large quantities of microplastics are thought to be emitted to freshwater environments via wastewater treatment plants (WWTPs). To evaluate the occurrence of microplastics in Korean WWTPs, a nationwide study was conducted for the first time in 50 rep
Autor:
Moon Su Kim, Jae Ha Yang, Sunhwa Park, Dong Su Kim, Tae Seung Kim, Oh-Sang Kwon, Sung-Jin Cho, Hyoung-Seop Kim, Byoung Kyu Ju, Hyun Koo Kim
Publikováno v:
Analytical Science and Technology. 28:228-235
Autor:
Tae Seung Kim, Hyun Koo Kim, Do Hwan Jeong, Sunhwa Park, Young-Rok Kim, Jae Ha Yang, Byoung Kyu Ju, Dong Su Kim, Moon Su Kim
Publikováno v:
Journal of Soil and Groundwater Environment. 19:104-110
In order to study gross alpha analysis method using LSC, the efficiency tests with uranium standard materials were performed and then compared with the GPC method (US EPA 900.0 method) using 15 groundwater samples. For 15 groundwater samples, the ave
Autor:
Tae Seung Kim, Moon Su Kim, Do Hwan Jeong, Hyun Koo Kim, Chan Ho Jeong, Hye Jin Kim, Byong Wook Cho, Byoung Kyu Ju, Dong Su Kim, Jung Ki Hong, Jin Seok Han, Sunhwa Park
Publikováno v:
Journal of Soil and Groundwater Environment. 18:19-31
To figure out the decay characteristics of naturally occurring radionuclides, eight sampled groundwaters from a monitoring borehole having high levels of uranium and radon concentrations in a two mica granitic area have analyzed by liquid scintillati
Autor:
Hoe Jung Noh, Do Hwan Jeong, Dong Su Kim, Moon Su Kim, Byoung Kyu Ju, Tae Seung Kim, Jeong Ki Yoon, Jung Ki Hong
Publikováno v:
Journal of Soil and Groundwater Environment. 18:82-92
This study has investigated naturally occurring radioactive materials (N.O.R.M; 238 U, 222 Rn) for 353 drinking groundwaterwells in metamorphic rock areas in Korea. Uranium concentrations ranged from N.D (not detected) to 563.56µg/L(median value, 0.
Environmental Characteristics of Natural Radionuclides in Groundwaters in Volcanic Rock Areas: Korea
Autor:
Hyun Koo Kim, Do Hwan Jeong, Tae Seung Kim, Moon Su Kim, Hye Jin Kim, Sunhwa Park, Dong Su Kim, Byoung Kyu Ju, Jung Ki Hong, Jin Seok Han
Publikováno v:
Journal of Soil and Groundwater Environment. 18:36-45
We analyzed natural radionuclides in 80 wells in volcanic rock areas and investigated environmental characteristics. Uranium and radon concentrations ranged from ND to (median value: 0.21) , 38~29,222 pCi/L (median value: 579), respectively. In case
Autor:
Moon Su Kim, Hye Jin Kim, Tae Seung Kim, Sang Ho Jeon, Hyun Koo Kim, Byoung Kyu Ju, Do Hwan Jeong, Sunhwa Park, Jin Seok Han
Publikováno v:
Analytical Science and Technology. 26:86-90
concentrations in the groundwater samples without standard material due to the short half-life (3.82 day) were measured through the establishment of the counting efficiency of LSC (Liquid Scintillation Counter) using a standard source of . This study
Autor:
Tae Seung Kim, Yoon Yeol Yoon, Jung Ki Hong, Young-Joon Lee, Hoe-Jung Noh, Do Hwan Jeong, Dongsoo Kim, Byoung Kyu Ju, Moon Su Kim
Publikováno v:
Journal of Soil and Groundwater Environment. 17:22-27
226 Ra in groundwater could be analyzed by various methods. LSC (liquid scintillation counter) is used to measure itsactivity of Ba co-precipitates with Hisafe III scintillation cocktail solution. Counting efficiency was obtained using NIST 226 Ra st
Publikováno v:
Journal of Soil and Groundwater Environment. 16:67-73
Groundwaters were sampled from 730 wells being used for drinking purposes during 2007-2009. These samples wereanalysed using a gas-flow type GPC (Gas Proportional Counter) according to the USEPA method (900.0). We obtained agross-alpha counting TDS (