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A synthetic method for atmospheric diffusion simulation and environmental impact assessment of accidental pollution in the chemical industry in a WEBGIS context.

Ni H, Rui Y, Wang J, Cheng L - Int J Environ Res Public Health (2014)

Bottom Line: The complete workflow of the emergency response, including raw data (meteorology information, and accident information) management, numeric simulation of different kinds of accidents, environmental impact assessments, and representation of the simulation results were achieved.The main contribution of this paper is that an organizational mechanism of the model set, based on the accident type and pollutant substance; a scheduling mechanism for the parallel processing of multi-accident-type, multi-accident-substance, and multi-simulation-model; and finally a presentation method for scalar and vector data on the web browser on the integration of a WEB Geographic Information System (WEBGIS) platform.The outcomes demonstrated that this method could provide effective support for deciding emergency responses of acute chemical accidents.

View Article: PubMed Central - PubMed

Affiliation: Jiangsu Provincial Key Laboratory of Geographic Information Science and Technology, Nanjing University, Nanjing 210093, China. haochenni.nju@gmail.com.

ABSTRACT
The chemical industry poses a potential security risk to factory personnel and neighboring residents. In order to mitigate prospective damage, a synthetic method must be developed for an emergency response. With the development of environmental numeric simulation models, model integration methods, and modern information technology, many Decision Support Systems (DSSs) have been established. However, existing systems still have limitations, in terms of synthetic simulation and network interoperation. In order to resolve these limitations, the matured simulation model for chemical accidents was integrated into the WEB Geographic Information System (WEBGIS) platform. The complete workflow of the emergency response, including raw data (meteorology information, and accident information) management, numeric simulation of different kinds of accidents, environmental impact assessments, and representation of the simulation results were achieved. This allowed comprehensive and real-time simulation of acute accidents in the chemical industry. The main contribution of this paper is that an organizational mechanism of the model set, based on the accident type and pollutant substance; a scheduling mechanism for the parallel processing of multi-accident-type, multi-accident-substance, and multi-simulation-model; and finally a presentation method for scalar and vector data on the web browser on the integration of a WEB Geographic Information System (WEBGIS) platform. The outcomes demonstrated that this method could provide effective support for deciding emergency responses of acute chemical accidents.

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Gas-gas H2S leakage. Image (a) shows the concentration field and image, (b) shows the risk field.
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ijerph-11-09238-f005: Gas-gas H2S leakage. Image (a) shows the concentration field and image, (b) shows the risk field.

Mentions: As leakage is the most common accident in the chemical industry, two kind of multi-leakage accidents were conducted. Figure 5 shows the gas-gas H2S leakage. It was found that the two gas leakage sources amalgamate into a powerful entirety; the influences of the two sources were almost the same. Figure 6 shows the gas-liquid H2S leakage, the pollutant source in upper left (gas) is more intensive than the lower right (liquid). It was concluded that the gas leakage was more serious than the liquid leakage.


A synthetic method for atmospheric diffusion simulation and environmental impact assessment of accidental pollution in the chemical industry in a WEBGIS context.

Ni H, Rui Y, Wang J, Cheng L - Int J Environ Res Public Health (2014)

Gas-gas H2S leakage. Image (a) shows the concentration field and image, (b) shows the risk field.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4199017&req=5

ijerph-11-09238-f005: Gas-gas H2S leakage. Image (a) shows the concentration field and image, (b) shows the risk field.
Mentions: As leakage is the most common accident in the chemical industry, two kind of multi-leakage accidents were conducted. Figure 5 shows the gas-gas H2S leakage. It was found that the two gas leakage sources amalgamate into a powerful entirety; the influences of the two sources were almost the same. Figure 6 shows the gas-liquid H2S leakage, the pollutant source in upper left (gas) is more intensive than the lower right (liquid). It was concluded that the gas leakage was more serious than the liquid leakage.

Bottom Line: The complete workflow of the emergency response, including raw data (meteorology information, and accident information) management, numeric simulation of different kinds of accidents, environmental impact assessments, and representation of the simulation results were achieved.The main contribution of this paper is that an organizational mechanism of the model set, based on the accident type and pollutant substance; a scheduling mechanism for the parallel processing of multi-accident-type, multi-accident-substance, and multi-simulation-model; and finally a presentation method for scalar and vector data on the web browser on the integration of a WEB Geographic Information System (WEBGIS) platform.The outcomes demonstrated that this method could provide effective support for deciding emergency responses of acute chemical accidents.

View Article: PubMed Central - PubMed

Affiliation: Jiangsu Provincial Key Laboratory of Geographic Information Science and Technology, Nanjing University, Nanjing 210093, China. haochenni.nju@gmail.com.

ABSTRACT
The chemical industry poses a potential security risk to factory personnel and neighboring residents. In order to mitigate prospective damage, a synthetic method must be developed for an emergency response. With the development of environmental numeric simulation models, model integration methods, and modern information technology, many Decision Support Systems (DSSs) have been established. However, existing systems still have limitations, in terms of synthetic simulation and network interoperation. In order to resolve these limitations, the matured simulation model for chemical accidents was integrated into the WEB Geographic Information System (WEBGIS) platform. The complete workflow of the emergency response, including raw data (meteorology information, and accident information) management, numeric simulation of different kinds of accidents, environmental impact assessments, and representation of the simulation results were achieved. This allowed comprehensive and real-time simulation of acute accidents in the chemical industry. The main contribution of this paper is that an organizational mechanism of the model set, based on the accident type and pollutant substance; a scheduling mechanism for the parallel processing of multi-accident-type, multi-accident-substance, and multi-simulation-model; and finally a presentation method for scalar and vector data on the web browser on the integration of a WEB Geographic Information System (WEBGIS) platform. The outcomes demonstrated that this method could provide effective support for deciding emergency responses of acute chemical accidents.

Show MeSH
Related in: MedlinePlus