Prediction and Assessment of Marine Pollution Risk from Ships Based on Statistical Analysis Probability Model
Hejun Geng,
Xiaobin Jiang,
Deling Wang,
Jie Li
Issue:
Volume 6, Issue 2, March 2021
Pages:
34-42
Received:
17 March 2021
Accepted:
29 March 2021
Published:
7 April 2021
Abstract: In recent years, with the rapid development of the national marine economy, maritime cargo transportation has continued to increase. In particular, the transportation volume of oil products and hazardous chemicals is increasing rapidly, and the risk of pollution to the water environment caused by ships and related operations is increasing, and marine oil spill accidents occur from time to time. Once a ship spills oil, the oil spilled on the sea migrates and spreads in the ocean as impacted by wind and tidal currents, thereby exerting adverse effects on the surrounding marine environment. As guided by sustainable development strategy, all mankind have developed a consensus of natural ecological protection, and effective prevention and treatment of ship pollution are suggested to show critical significance. Thus, given the development status and historical accidents of a specific water area, this study employs a method based on probability statistics to predict the risk of marine pollution and explore the effective prevention and countermeasures for the pollution. Conducted oil spill risk assessment on Ningbo Guanbao Terminal. Determine the risk value of oil spill accidents in each port area in the area, and provide support for the site selection of the oil spill emergency equipment warehouse in the port waters. The results will be conducive to guiding ship marine oil spill risk management.
Abstract: In recent years, with the rapid development of the national marine economy, maritime cargo transportation has continued to increase. In particular, the transportation volume of oil products and hazardous chemicals is increasing rapidly, and the risk of pollution to the water environment caused by ships and related operations is increasing, and mari...
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Evaluation of Traffic Accessibility Condition and Noise Pollution in Dhaka City of Bangladesh
Zahidul Islam,
Faruque Abdullah,
Mahmuda Khanom
Issue:
Volume 6, Issue 2, March 2021
Pages:
43-51
Received:
6 May 2021
Accepted:
24 May 2021
Published:
31 May 2021
Abstract: Sound pollution and traffic jam are two major problems in most of the city roads of developing cities like as Dhaka, Bangladesh. Traffic jam, as well as mixed traffic condition, is the major cause of sound pollution in the city roads. Both of these issues affect mostly on country's public health and development. A lot of new roads have been constructed in Dhaka city every year but the majority of the roads have not been constructed considering the future AADT (Annual Average Daily Traffic) value. The traffic volume has increased a lot as the population of the country increased rapidly and shifting the status of the country from developing county to the developed country increased the demand for privet car and as a result traffic jam is a regular problem in the Dhaka city. Due to increasing traffic volume, the waiting time in the traffic jam has been increased consequently. Drivers bell the horn of their vehicle to attract the concentration of the traffic police so that the traffic police provide the green signal to his/her desired destination road. Also after the starting of the green signal or when the yellow signal is provided to the drivers, the driver bell horn of their vehicle so that low-speed vehicle side to high-speed vehicle. Besides these, bikers continuously press the hydraulic horn to provide them free access throughout their road. In this research work, we have attempted to show how much free access is available to Natun Bazar to Farmgate road, a major traffic-congested road in Dhaka city for both directions of traffic movement and also the present sound pollution condition in this road. On an average of 9.06% and 8.46% of a day the driver gets free access [green signal] on this route based on the traffic movement direction [Natun Bazar to Farmgate route]. At present on average it requires around 2 hr. for traveling 7 km road and this is a hotspot of huge time killing for the city people in their regular life. Besides this passenger has to bear a sound level of around 101 dB including the residents living in this area beside the roadway. This impact is tremendous for the bikers and bus passengers result, they are experiencing significant issues such as headaches, decreased job performance, decreased focus, exhaustion, tension, and tiredness.
Abstract: Sound pollution and traffic jam are two major problems in most of the city roads of developing cities like as Dhaka, Bangladesh. Traffic jam, as well as mixed traffic condition, is the major cause of sound pollution in the city roads. Both of these issues affect mostly on country's public health and development. A lot of new roads have been constru...
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