• Title/Summary/Keyword: Noxious Substances

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A Study on the Development of the Response Resource Model of Hazardous and Noxious Substances Based on the Risks of Marine Accidents in Korea (위험도에 기반한 HNS 방제자원 모델 개발에 관한 연구)

  • Lee, Eun-Bang;Yun, Jong-Hwui;Chung, Sang-Tae
    • Journal of Navigation and Port Research
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    • v.36 no.10
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    • pp.857-864
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    • 2012
  • Reviewing the statistics of harbor shipment of hazardous and noxious substance and the past spill accidents of HNS enabled us to assess the potential risks of transportation of HNS through the major harbors in Korea. Ulsan, Yeosu, Daesan port are relatively evaluated high risk in fire, health and environment disaster. Through the analysis of domestic preparedness to HNS accidents, the supplement of expertise resource to respond the vulnerability of the explosion, the fire and the physiological hazard, is required. Based on this risk assessment and review of the advanced case of Japan in building up HNS response system, a resource model at a national level was proposed which differentiates the sea areas for the proper allocation of resources to respond effectively to HNS accidents in the future.

Study on Improvements to Domestic Marine HNS Training Curricula through a Case Analysis of Marine Chemical Incidents (해상화학사고 사례 분석을 통한 국내 해상HNS 교육과정 개선에 관한 연구)

  • Kim, Kwang-Soo
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.27 no.1
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    • pp.97-112
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    • 2021
  • This study introduces lessons learned from investigation and analysis of major domestic and overseas cases of marine chemical incidents involving hazardous and noxious substances (HNS) during maritime transportation by chemical tankers carrying petrochemical products in bulk. The study then suggests plans to improve domestic marine HNS training curricula based on these lessons. Lessons learned from six incident cases are classified into the following six categories: 1) incident-related information, 2) safety, 3) pollution, 4) response, 5) salvage and 6) others. Based on these six categories, it is suggested that the curriculum provided by the Marine Environment Research & Training Institute for marine pollution prevention managers aboard noxious liquid substance carriers should be changed from the existing two-day training of eight subjects (16 h) to a three-day training of sixteen subjects (24 h). In addition, it is proposed that the marine chemical incident response course of the Korea Coast Guard Academy should be changed from the existing five-day training of fifteen subjects (35 h) to a six-day training of thirty-two subjects (48 h). These results are expected to contribute to sharing experiences and lessons learned about response to marine chemical incidents and to be used as basic data for improving the education and training courses for response personnel in preparedness for marine HNS incidents.

Experiment and Simulation of Acoustic Detection for the Substitute for Sunken Hazardous and Noxious Substances Using the High Frequency Active Sonar (고주파 능동소나를 이용한 저층 침적 위험유해물질 대체물질 음향 탐지 실험 및 모의)

  • Han, Dong-Gyun;Seo, Him Chan;Choi, Jee Woong;Lee, Moonjin
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.24 no.4
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    • pp.459-466
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    • 2018
  • Hazardous and Noxious Substances (HNS) are defined as substances that are likely to create a significant impact on human health and marine ecosystem when they are released into the marine environment. Recently, as the volume of HNS transported by ships increases, the rate of leakage accidents also increases. Therefore, research should be conducted to control and monitor sunken materials from the viewpoint of technology development for hazardous material leakage accident response. In this paper, acoustic detection experiments were carried out using HNS substitute materials in order to confirm the possibility of acoustic detection of sunken HNS on the sediment. The castor oil, which has a similar acoustic impedance with chloroform, is used as a substitute. 200 kHz high frequency signals were used to discriminate the reflected signals and measure reflection loss from the interface between water and castor oil. The reflection loss measured is in good agreement with the modeling results, showing a possibility of acoustic detection for sunken HNS.

Effects of Anion Supplementation on Growth Performance, Nutrient Digestibility, Meat Quality and Fecal Noxious Gas Content in Growing-finishing Pigs

  • Yan, L.;Han, D.L.;Meng, Q.W.;Lee, J.H.;Park, C.J.;Kim, I.H.
    • Asian-Australasian Journal of Animal Sciences
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    • v.23 no.8
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    • pp.1073-1079
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    • 2010
  • Forty-eight ((Duroc${\times}$Yorkshire)${\times}$Landrace) pigs with an average initial body weight (BW) of $48.47{\pm}1.13\;kg$ were used in a 12-week growth trial to investigate the influence of Anion (silicate) supplementation on growth performance, nutrient digestibility, meat quality and fecal noxious gas content in growing-finishing pigs. Pigs were allotted into three dietary treatments in a randomized complete block design according to sex and initial BW. Each dietary treatment consisted of four replications with four pigs per pen. Dietary treatments included: i) CON (basal diet), ii) HCI (basal diet+3 g/kg Anion), iii) HCII (basal diet+6 g/kg Anion). No significant difference (p>0.05) was detected for average daily gain (ADG), average daily feed intake (ADFI) and gain/feed ratio (G/F) throughout the experiment, although dietary supplementation of Anion numerically increased these characteristics compared with CON. The dietary HCI group significantly (p<0.05) increased the coefficient of total tract apparent digestibility (CTTAD) of dry matter (DM), nitrogen (N) and energy compared with the CON group (p<0.05). No significant difference was observed in meat quality except that meat firmness was linearly (p<0.05) increased by the Anion supplementation, while an increased tendency in meat color and a decreased tendency in 2-thiobarbituric acid reactive substances (TBARS) was also observed (p<0.10). Anion supplementation linearly (p<0.05) decreased the fecal $NH_3$ compared with the CON group. However, dietary Anion supplementation at 3 g/kg decreased the $H_2S$ concentration compared with CON, while no significant difference was detected in the HCII group, although the $H_2S$ emission was numerically decreased compared with CON. In conclusion, supplementation of the diet with 3 g/kg Anion was found to exert a beneficial effect on nutrient digestibility and meat quality of growing-finishing pigs, and concomitantly decreased the noxious gas emission without negative effect on growth performance.

A Comparative Study on Risk Management Systems for Hazardous and Noxious Substances at Sea, in Korea and USA. (해상 위험.유해물질 위험관리제도의 비교연구 - 한국과 미국 중심으로 -)

  • 최종해
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.8 no.1
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    • pp.15-52
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    • 2002
  • According to International Maritime Organization. more than 50% of cargoes transported by sea today can be regarded as dangerous or hazardous ones, mainly consisting of chemical cargoes in bulk, likely solid or liquid and other materials, such as gases and products for and of the oil refinery industry. 46% of total cargoes handled in ports of Korea in 1999. is said to be dangerous cargoes. These dangerous and hazardous cargoes are quite within a high realms of possibility of accidents, likely to be grave disaster. This paper reviews current risk management system for the dangerous and hazardous cargoes sea-transportation, mainly focusing on the prevailing regal regimes in both USA and Korea. And it aims to suggest some points for advancing the existing Korean system.

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Chemoprotective effects of the formulated extract DA-9601 of Artemisia asiatica against experimentally induced oxidative and inflammatory tissue damage

  • Lee, Jeong-Sang;Oh, Tae-Young;Ahn, Byung-Ok;Hyun Cho;Hahm, Ki-Baik;Surh, Young-Joon
    • Proceedings of the Korean Society of Toxicology Conference
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    • 2001.05a
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    • pp.146-146
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    • 2001
  • Gastroesophageal reflux disease (GERD) is multifactorial in etiology and is characterized by movement of acid and other noxious substances from the stomach into the esophagus. The most severe histologic consequence of chronic gastroesophgeal reflux is Barrett's esophagus, which has been considered as a premalignant condition often leading to the formation of adenocarcinoma of esophagus.(omitted)

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A Study on the Construction of GCM System (GCM 시스템 구축 방안에 관한 연구)

  • Lee, Doo-Yong;Lee, Chang-Ho
    • Journal of the Korea Safety Management & Science
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    • v.16 no.1
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    • pp.201-206
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    • 2014
  • GCM(Green Chain Management) is being spread by that companies which apply with eco-friendly concept in entire SCM(Supply Chain Management) perspective is being increased for resolving some recent environmental problems. There are reasons that numerous companies focus on GCM. At first various governments began to directly manage components and material contents about various noxious substances. Second, environment problem management in the entire logistics process from procurement of product materials to distribution of product became to be important according to introduction of certification system that evaluate the environmental impact throughout life-cycle of products. Purposes of this paper are 1) to analyze the GCM process whose important is more increasing in the recent logistics environment change, 2) to comprehend places and sources that generate environmental elements like energy consumption and greenhouse gas emissions in elements of logistics function, and 3) to construct integrated GCM system for observing activity of logistics function throughout life-cycle of products.