scholarly journals Floodwater impacts on residential areas in floodplain areas along Day River system in emergency situation

2021 ◽  
Vol 66 (1) ◽  
pp. 77-90
Author(s):  
Sai Hong ANH ◽  
Toshinori TABATA ◽  
Kazuaki HIRAMATSU ◽  
Le Viet SON ◽  
Masayoshi HARADA
Keyword(s):  
Emergency Situation ◽  
River System ◽  
Residential Areas

scholarly journals Analisis Kekuatan Bangunan Rumah Terhadap Banjir Berdasarkan Interpretasi Bentuk Atap Mengunakan Sistem Informasi Geografis Di Desa Kaligayam, Kecamatan Margasari, Kabupaten Tegal

2020 ◽  
Vol 16 (1) ◽  
pp. 119
Author(s):  
Roesa Andika Firmansyah ◽  
Sudibyakto Sudibyakto ◽  
Sunarto Sunarto
Keyword(s):  
Image Interpretation ◽  
Emergency Situation ◽  
Research Area ◽  
Residential Areas ◽  
Building Inventory ◽  
Physical Conditions ◽  
Roof Shape ◽  
The Face ◽  
House Building

Flood events in Kaligayam Village occur due to rainwater and overflowing rivers trapped in sloping residential areas. Research on the quality of houses in the face of flooding, by grouping based on the shape of the roof, has not been widely carried out, especially in this research area. The use of GIS to analyze the condition of a house in an emergency situation can still be developed to get more detailed results. The population in this study was the house building unit, and the sampling method uses proportional techniques that were randomly selected. The sample of grouping is based on the roof shape of the house that was acquired with Quickbird image interpretation with 0.6 meter spatial resolution. The results of the acquisition of high-rise building data were built with supporting and validated data through field surveys. The database that is processed using GIS to produce data on classes of house buildings in watching flood data on physical conditions, support, and age of the house building. Inventory of all housebuilding parameter data produces a map of the quality of the house building against flooding. In each form of the roof, the building of the house has a variety of different levels of quality in the face of the danger of flooding. The level of quality of the house becomes five levels (very high, high, medium, low, and very low). The type of roof of the village becomes the type of building that has the best quality which is the type of house building with the highest resilience.

scholarly journals Evaluating the Water Quality Contribution of Estero de Paco to Pasig River and Manila Bay, Philippines

2020 ◽  
Vol 148 ◽  
pp. 07010
Author(s):  
Eligia D. Clemente
Keyword(s):  
Water Quality ◽  
Oxygen Demand ◽  
River System ◽  
Meteorological Conditions ◽  
Oxygen Deficit ◽  
Critical Parameters ◽  
Residential Areas ◽  
Wet Season ◽  
Manila Bay ◽  
Initial Survey

The clean-up of the river system feeding into Manila Bay is crucial in addressing the current Manila Bay water quality. Since Estero de Paco is a feeder into Pasig River which enters the Manila Bay, its clean-up is imperative to sustain Manila Bay water quality. This research gathered information on the water quality Estero during both the dry and the wet season. Initial survey of the stretch showed that there are bridges and residential areas as potential sampling points. Using the Streeter-Phelps model an assessment of the water quality during different meteorological conditions shows that almost no DO is available during the dry season, while some have a DO > 5 mg/l (standard) during the rainy season. Unfortunately, based on the other critical parameters, Biochemical Oxygen Demand (BOD) was high due to discharge of septic waste directly into the river during the heavy rains. Sludge near populated areas were characterized and found to contain high levels of Oil & Grease, Organic Matter. The Streeter-Phelps equation used to evaluate the oxygen deficit shows that at the Pasig River junction DO is negligible even during the wet season. It is recommended that regular monitoring and community engagement be actively pursued.

scholarly journals FORECASTING THE WATER QUALITY AND THE CAPACITY OF RECEIVING WASTEWATER OF THE DONG NAI RIVER UP TO 2020

2018 ◽  
Vol 54 (2A) ◽  
pp. 134
Author(s):  
Le Quoc Tuan
Keyword(s):  
Water Quality ◽  
Municipal Wastewater ◽  
Optimal Solution ◽  
River System ◽  
Residential Areas ◽  
The South ◽  
Standard Requirement ◽  
Investment Projects ◽  
Study Results

Dong Nai river, the largest river system in the South East region, flows through five provinces in the South East area. Dong Nai river serves water for living, production, irrigation, aquaculture, navigation, and hydropower. It receives a huge impact from the natural and artificial elements, such as municipal wastewater from residential areas and urban centers; industrial wastewater from industrial zones, toxic wastewater from agricultural activities, etc [4, 5, 6]. Therefore, the prediction of water quality change and the capacity of receiving wastewater are very essential in environmental protection for Dong Nai river. The study results showed that the water quality of Dong Nai river is currently achieved to the standard requirement and the using purposes. However, there were some sections where had locally polluted signs and had not be used (such as Dong Nai river in the section 3). Predictably up to 2020, pollutant load will increases, however, the water quality of Dong Nai river is still achieving the fundamental purpose of water supply, except TSS which, water from the area below Tri An damp to Dong Nai bridge, is not reached the regulation permit in the beginning and ending of rainy season. To protect the water of Dong Nai River, the optimal solution is necessary to collect and treat all wastewater from industrial, domestic, livestock and medical activities to get the standard permission before discharged into Dong Nai river. At the same time, considering the capacity of receiving wastewater on the each section of Dong Nai river is conducted to allow new investment projects and license of wastewater dischargement.

scholarly journals Flood Hazard Assessment of Residential Areas Inside the Van Coc Lake, Hanoi, in an Emergency Situation

2020 ◽  
Vol 65 (2) ◽  
pp. 305-311
Author(s):  
Sai Hong ANH ◽  
Toshinori TABATA ◽  
Kazuaki HIRAMATSU ◽  
Masayoshi HARADA ◽  
Le Viet SON
Keyword(s):  
Hazard Assessment ◽  
Flood Hazard ◽  
Emergency Situation ◽  
Residential Areas ◽  
Flood Hazard Assessment

scholarly journals Risk assessment for the industrial facility impact on the atmosphere

2022 ◽  
Vol 6 (4) ◽  
pp. 340-347
Author(s):  
I. A. Gushchin ◽  
D. V. Sofronov ◽  
V. D. Smolnikov ◽  
I. A. Rymbaev
Keyword(s):  
Risk Assessment ◽  
Maximum Permissible Concentration ◽  
Emergency Situation ◽  
Toxic Substances ◽  
Residential Areas ◽  
Wind Rose ◽  
Distribution Law ◽  
Industrial Facilities ◽  
Risk Of Exposure ◽  
The Impact

Environmental pollution creates problems for health of people living in residential areas near pollution sources. Studies aimed at developing methods for investigating the impact of industrial facilities on the air is of interest. The purpose of this work is to analyze the methodology for assessing the risk of exposure of a technosphere object to the atmosphere. It was assumed that the enterprise in emergency mode emits pollutants through the source of emissions at the maximum single concentration of the substance exceeding the maximum permissible concentration. To calculate the impact on a human, various scenarios of an emergency situation are taken into account. These are constructing failure trees and using well-known health risk assessment techniques. The calculation took into account the wind rose for a specific enterprise location and wind speed projections obeying the normal distribution law. These assumptions allowed us to develop a method for calculating the risk of exceeding the concentration of a pollutant at a given point (x, y) during the year. Isolines of surface concentrations were built. Three toxic substances were taken for analysis. The method for calculating the dispersion of emissions of harmful (polluting) substances in the atmospheric airwas used; maps of the dispersion of isolines of pollutants in residential areas were constructed. When solving the inverse problem, emergency emission intensities at which excess of permissible concentrations occurred were determined. In the range of multiplicities exceeding the maximum single maximum permissible concentration from 1 to 5, the dependence was well approximated by a straight line. This technique can be used to determine the risk of diseases caused by carcinogenic and noncarcinogenic substances and minimize the risk of exposure to harmful substances.

scholarly journals FORECASTING THE WATER QUALITY AND THE CAPACITY OF RECEIVING WASTEWATER OF THE DONG NAI RIVER UP TO 2020

2018 ◽  
Vol 54 (2A) ◽  
pp. 141
Author(s):  
Nguyen Viet Anh
Keyword(s):  
Water Quality ◽  
Municipal Wastewater ◽  
Optimal Solution ◽  
River System ◽  
Residential Areas ◽  
The South ◽  
Standard Requirement ◽  
Investment Projects ◽  
Study Results

Dong Nai river, the largest river system in the South East region, flows through five provinces in the South East area. Dong Nai river serves water for living, production, irrigation, aquaculture, navigation, and hydropower. It receives a huge impact from the natural and artificial elements, such as municipal wastewater from residential areas and urban centers; industrial wastewater from industrial zones, toxic wastewater from agricultural activities, etc [4, 6, 7, 12]. Therefore, the prediction of water quality change and the capacity of receiving wastewater are very essential in environmental protection for Dong Nai river. The study results showed that the water quality of Dong Nai river is currently achieved to the standard requirement and the using purposes. However, there were some sections where had locally polluted signs and had not be used (such as Dong Nai river in the section 3). Predictably up to 2020, pollutant load will increases, however, the water quality of Dong Nai river is still achieving the fundamental purpose of water supply, except TSS which, water from the area below Tri An damp to Dong Nai bridge, is not reached the regulation permit in the beginning and ending of rainy season. To protect the water of Dong Nai River, the optimal solution is necessary to collect and treat all wastewater from industrial, domestic, livestock and medical activities to get the standard permission before discharged into Dong Nai river. At the same time, considering the capacity of receiving wastewater on the each section of Dong Nai river is conducted to allow new investment projects and license of wastewater dischargement.

Infectious rain? Evaluation of human pathogen concentrations in stormwater in separate sewer systems

2019 ◽  
Vol 80 (6) ◽  
pp. 1022-1030 ◽  
Author(s):  
Christiane Schreiber ◽  
Sophie-Bo Heinkel ◽  
Nicole Zacharias ◽  
Franz-Michael Mertens ◽  
Ekkehard Christoffels ◽  
...  
Keyword(s):  
River System ◽  
Traffic Load ◽  
Human Pathogens ◽  
Residential Areas ◽  
Sewer System ◽  
Sewer Systems ◽  
Run Off ◽  
Combined Sewer ◽  
High Concentrations ◽  
The Eu

Abstract Separate sewer systems collect and discharge rainwater directly into surface water bodies. In residential areas covering moderate traffic load these are alternative drainage routes to avoid combined sewer overflow discharge and to keep rivers clean as required by the EU Water Framework Directive. This overflow's microbial quality, however, needs to be evaluated, since stormwater run-offs are potential pathways for pathogens into river systems. Between 2010 and 2016, two separate sewer systems in North Rhine-Westphalia (Germany) were investigated. The stormwater outflow was sampled during discharge events and microbiologically analysed. The results showed high concentrations of Escherichia coli (1,100–1,100,000 CFU/100 mL) and Clostridium perfringens (20–13,000 CFU/100 mL). Campylobacter and Salmonella were detected in 97% and 43% of the samples. Giardia cysts were more often detected (31.6%) than Cryptosporidium oocysts (10.5%). The sources of human pathogens in rainwater run-off are heterogeneous. While roads have already been declared as chemical polluters via rainwater run-off, our study detected supplementary pollution of mainly faecal microorganisms. Presumably, failed connections in the sewer system itself are important sources of human pathogens. We suggest treatment of stormwater run-offs before being discharged into the river system.

Managing Salinity in the Upper Santa Clara River System of California

2009 ◽  
Author(s):  
Nathan Brown ◽  
Brian Louie ◽  
Frank Guerrero ◽  
Terry Foreman ◽  
Sorab Panday ◽  
...  
Keyword(s):  
River System
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