• Journal of the Korean Society of Groundwater Environment
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• v.6 no.2
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• pp.66-75
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• 1999

This work was initiated to investigate current situation and problems in applying groundwater-related models for various kinds of environmental impact assessment in Korea. and therefore. to enhance appropriate application in the future. This study was carried out with 544 and 16 documents of EIA (Environmental Impact Assessment. Law of Environmental Impact Assessment) and Mineral-Water EIA (“the environmental impact investigation for mineral water developments”; Law of Drinking Water Management). respectively. It was revealed that there were considerably many cases which may cause serious impacts on subsurface environments in EIA. However. none applied groundwater models. Generally, the influences on subsurface system were underestimated or even ignored in EIA. For Mineral-Water EIA. groundwater models wert applied. in general. But. numerous and serious problems were noted: limited number of calibration parameters and parameter types. setting boundary conditions without adequate bases. recharge rates several times higher than precipitation rates. numerically unstable results. etc. Such kinds of misusages seem to be caused by modelers larking in professional knowledges. To solve the problems revealed from this study. more systematic re-education programs are suggested.

• Korean Journal of Environmental Agriculture
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• v.30 no.3
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• pp.281-287
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• 2011

BACKGROUND: According to Korean regulations, bottled waters (BWs) can not be treated with chemical disinfectants like chlorine, so UV and ozone disinfection is applied. During the past several years, chemicals were detected in some BWs, and the public was concerned about the safety of BWs. METHODS AND RESULTS: Mineral waters were stored for 180 days at $25^{\circ}C$ and $50^{\circ}C$, tested acetaldehyde and formaldehyde by HPLC. When mineral waters were put in a PET bottles, the formaldehyde level ranged from 5 to $66{\mu}g/L$ during 180 days at $50^{\circ}C$. While the acetaldehyde level ranged from 31 to $221{\mu}g/L$, it was low than $16{\mu}g/L$ in glass bottle. CONCLUSION(s): This result showed that formaldehyde and acetaldehyde were detected higher in PET bottles than glass bottles, these also increased depending on the time of storage. Concentration of formaldehyde and acetaldehyde could be significantly influenced by the time of storage and temperature.

• Analytical Science and Technology
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• v.23 no.2
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• pp.155-160
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• 2010

This study was performed to compare international analytical methods of bromate and applied to determine bromate in bottled mineral water in Korea. Bromate in bottled mineral water was eluted by 10~50 mM potassium hydroxide (KOH) and determined by ion chromatograph-suppressed conductivity detector (ICCD). Sample was purified with on guard Ba-, Ag- and H-cartridges and $0.2\;{\mu}m$ membrane filter. The method detection limit (MDL) and the limit of quantitation (LOQ) of bromate were 0.1 and $0.5\;{\mu}g/L$, respectively. The calibration curve showed good lineality above 0.9998 in the ranges of the $0.5\sim40\;{\mu}g/L$. Bromate from 33 samples among total 157 bottled mineral water samples was detected in the concentration range of $0.5\sim6.5\;{\mu}g/L$. The detected concentrations were within bottled mineral water quality criteria ($10\;{\mu}g/L$) in Korea.

• 한국상하수도협회지
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• s.11
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• pp.12-13
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• 2005

• 한국상하수도협회지
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• s.13
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• pp.20-21
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• 2006

• Journal of the Korean Geophysical Society
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• v.7 no.1
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• pp.41-41
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• 2004

56 samples were analyzed to understand water quality of the natural mineral water of Korea. The geology according to each sample location is grouped into Precambrian metamorphic rocks, Okcheon metamorphic rocks, Jurassic granite, Cretaceous granite, and Jeju volcanic rocks. Average EC and pH values of the water is 150 μS/cm and 7.3, respectively and water type of the water is mainly Ca-Na-HCO3. Fundamentally, there still is no problem for the water quality of the natural mineral water. Nevertheless, nitrate was detected and arsenic and fluoride contents are near the drinking water standards, it is highly necessary to manage the water quality by installment of casing and grouting or by development of another production well.

• The Journal of Engineering Geology
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• v.12 no.3
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• pp.285-294
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• 2002

The origin of nitrate in confined groundwater was studied using oxygen ($\delta$180), hydrogen ($\delta$D), and nitrogen ($\delta$15N) stable isotopes, along with chemical data of NO3-N. We analyzed groundwaters from more than sixty manufactories producing natural mineral waters around the country During the period of 1998-2001, an average value of nitrate was fair]y low (0.95 mg/$\ell$), however, groundwaters from six sites showed more than 2 mg/$\ell$ of nitrate. The stable isotope data of the groundwaters are -8.3~-11 $\textperthousand$ $\delta$8O, -60~-75 $\textperthousand$ $\delta$D, which lies in an average range of the groundwaters. The nitrogen isotope data with -11.8~-5.1$\textperthousand$ $\delta$15N suggest that manure, organic nitrate, and fertilizers can not be the origin of nitrate in the goundwaters.

• Korean Journal of Microbiology
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• v.36 no.3
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• pp.242-248
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• 2000

Since the official allowance of bottled water at Korean domestic market in 1995, Pseudomo~zas aemginosu has been detected from 2.3% and 1.2% of source and products of bottled water sa~nple tested, respectively. according to the nation-wide dala froin May 1995 to December 1996. Therefore, P aeivginosa was the second most important parameter, next to colifoi~ns, anlong the bacieriological parameters regulated for bonled water. The official standard method initially adopted the Japanese officlal method and Standard Methods of the US, w~hich is using aspai-agiii-acetamid mnedia(A-A method). how eve^; the method showed low specificity regardless of the high sensitivity. The $42^{\circ}C$ growth test was the best biochemical featu1-e differentiating the P uelarginosu 6-om P aei-uginosa-like species such as P puririir and P Jhoi.escens amo1zg the other characierisiics such as fluorescence pigment_ pyocyanin, casein hy&olysis, etc. Thel-efore, addition of the $42^{\circ}C$ growth Lest in advance ofthe biochemical identification test, when sainple is positive by A-A method, should strengthen the spec~IiclQ w~tli ~ninin~um addition of testing load.

• Bulletin of Korea Environmental Preservation Association
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• s.400
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• pp.14-16
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• 2012

물산업을 새로운 미래성장동력으로 삼아 세계 물산업 시장에서 경쟁우위를 선점하기 위해 세계 각국은 많은 노력을 기울이고 있다. 우리나라도 물산업 육성의 핵심전략으로 원천기술 확보를 통한 경쟁력 강화, 토털솔루션 역량 확보를 통한 전문 물기업 육성, 먹는샘물, 물재이용 등 연관 산업 육성, 해외진출 활성화 등 세부계획을 추진 중에 있다.

• 수도
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• v.22 no.3 s.73
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• pp.5-16
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• 1995