Pollution prevention and restoration in the golden horn of Istanbul

1998 ◽  
Vol 37 (8) ◽  
pp. 129-136 ◽  
Author(s):  
Bülent Inanç ◽  
Cumali Kinaci ◽  
Izzet Öztürk ◽  
Mehmet Faik Sevimli ◽  
Osman Arikan ◽  
...  
Keyword(s):  
Water Quality ◽  
Bottom Sediment ◽  
Industrial Wastewater ◽  
Pollution Prevention ◽  
Environmental Problems ◽  
Current Status ◽  
Prevention Measures ◽  
Organic Solids ◽  
Golden Horn

The pollution in the Golden Horn is one of the most important environmental problems of Istanbul. Alluvium carried by Alibey and Kagithane creeks, and domestic and industrial wastewater discharges are the major sources of the pollution. In the upstream, a part of 3 to 4 km long is almost completely filled with debris and organic solids. There is a high anaerobic activity in the sediment resulting in a heavy odor problem. Sea traffic is impossible since the depth of water is less than 10 cm at this part. A restoration feasibility project has been carried out for pollution prevention and evaluation of the restoration alternatives. For this purpose, first, characteristics of water quality and bottom sediment were determined. Second, pollution prevention measures and the alternatives for the dredging and disposal of the bottom sediment were evaluated. Istanbul Metropolitan Municipality has already started the dredging work by early 1997, and has completed the diversion of all domestic and industrial wastewater discharges out of the Golden Horn. This paper summarizes the studies for determining current status, evaluating the restoration alternatives, and also the progress of the on-going dredging work.

scholarly journals Spatial Differentiation of Water Quality Between Reservoirs Under Anthropogenic and Natural Factors Based on Statistical Approach

2014 ◽  
Vol 40 (1) ◽  
pp. 41-50 ◽  
Author(s):  
Hülya Boyacioglu
Keyword(s):  
Water Quality ◽  
Management Practices ◽  
Pollution Prevention ◽  
Organic Pollution ◽  
Temporal Variations ◽  
Trend Detection ◽  
Prevention Measures ◽  
Western Turkey ◽  
Natural Factors ◽  
Study Results

Abstract This study illustrates the benefits of statistical techniques to analyze spatial and temporal variations in water quality. In this scope water quality differentiation caused by anthropogenic and natural factors in the Tahtali and Balçova reservoirs in western Turkey was investigated using discriminant analysis-DA, Mann Whitney U techniques. Effectiveness of pollution prevention measures was analyzed by Mann Kendall and Sen’s Slope estimator methods. The water quality variables were divided into three groups as physical-inorganic, organic and inorganic pollution parameters for the study. Results showed that water quality between reservoirs was differentiated for “physical-inorganic” and “organic pollution” parameters. Degree of influence of water quality by urbanization was higher in the Tahtali reservoir and in general, no trend detection at pollution indicators explained by effective management practices at both sites.

Current Status Analysis and Preventive Countermeasures on Industrial Hazardous Waste in Chongqing, China

2011 ◽  
Vol 414 ◽  
pp. 191-197
Author(s):  
Ying Zhu ◽  
Li'ao Wang ◽  
Jia Xiang Li
Keyword(s):  
Solid Waste ◽  
Hazardous Waste ◽  
Pollution Prevention ◽  
Ecological Environment ◽  
Current Status ◽  
Prevention Measures ◽  
Industrial Solid Waste ◽  
Chongqing Municipality ◽  
The Status ◽  
Status Analysis

Large amounts of industrial hazardous waste (IHW) are generated with the rapid economicgrowth in Chongqing Municipality. The generation of IHW was 355994.12t in 2010 and made up 1.25% of industrial solid waste (ISW). Huge varieties and complex components of IHW make it difficulty in its management, which causing serious environmental problems. In this paper, the status of IHW generation, disposal and management was analyzed from 2006 to 2010. Moreover, the pollution prevention measures are proposed for the purpose of protecting the ecological environment

scholarly journals From the Editor: Environmental Concerns

1998 ◽  
Vol 7 (3) ◽  
pp. 3-3
Author(s):  
Jan B. Talbot
Keyword(s):  
Water Quality ◽  
Air Pollution ◽  
Solid State ◽  
Environmental Science ◽  
Pollution Prevention ◽  
Environmental Problems ◽  
Environmental Concerns ◽  
Detection Analysis ◽  
Electrochemical Technology ◽  
The World

Since the 1970s, environmental awareness has grown dramatically in response to major air pollution and water quality problems throughout the world. Environmental science and technology must be interdisciplinary in order to solve complex problems of pollution prevention and remediation. Electrochemical and solid-state technologies play a key role in the detection, analysis, and abatement of pollutants. However, electrochemical technology, such as the chlor-alkali and batteries industries, have also contributed to environmental problems.

Integrated watershed management efforts: case study from Melen Watershed experiencing interbasin water transfer

2013 ◽  
Vol 13 (5) ◽  
pp. 1272-1280 ◽  
Author(s):  
I. Ozturk ◽  
A. Erturk ◽  
A. Ekdal ◽  
M. Gurel ◽  
E. Cokgor ◽  
...  
Keyword(s):  
Water Quality ◽  
Water Supply ◽  
Action Plan ◽  
Pollution Prevention ◽  
Water Transfer ◽  
Wastewater Management ◽  
Prevention Measures ◽  
Watershed Protection ◽  
Interbasin Water Transfer ◽  
The Government

Istanbul is a megacity with a population of over 13 million. Due to experienced droughts and population growth in the city, interbasin water transfer from Melen Watershed was considered as the most feasible alternative to supply water that can compensate for water demand in the future. This decision changed the beneficial use of the Melen Watershed from irrigation water supply to drinking water supply and necessitated extensive pollution prevention measures to comply with the new water quality requirements. A Watershed Protection Action Plan was developed for the sustainable management of Melen Watershed. The action plan included measures concerning wastewater management, diffuse pollution management, solid waste management and water quality monitoring. In this paper, proposed protection actions in the plan are provided together with the activities realized so far. In addition, the changes made by the authorities during implementation of the plan are presented. The proposed Watershed Protection Action Plan as approved by the government is one of the first examples in Turkey, where watershed-based planning of water resources is implemented instead of administrative boundary-based management.

scholarly journals Assessing changes in surface water quality and pollutant load in Dong Nai province

2016 ◽  
Vol 19 (4) ◽  
pp. 249-258
Author(s):  
Huong Thi Diem Bui ◽  
Tuan Ngoc Le
Keyword(s):  
Water Quality ◽  
Surface Water ◽  
Industrial Wastewater ◽  
Quality Index ◽  
Suspended Solids ◽  
Surface Water Quality ◽  
Current Status ◽  
Pollutant Loads ◽  
High Concentrations

This study aims at assessing changes in the surface water quality in Dong Nai province (2010- 2014). In addtion, the pollutant loads of wastewater sources were calculated till 2020–2030 with 03 wastewater treatment scenarios serving for the local environmental management. The water quality index (WQI) showed the surface water quality of Dong Nai Province to be gradually improved during the dry season but significantly declined in the rainy season in the last 5 years due to high concentrations of suspended solids (SS), Fe and microorganism - especially in the 3rd segment of Dong Nai river through Bien Hoa City. This current status certainly relates to pollutant loads from waste water sources in the province. Pollutant loads of domestic and industrial wastewater in Bien Hoa city are the highest (40 % per source), livestock activities in Xuan Loc district account for 20 %; aquaculture activities in Nhon Trach district contribute more than 75 % of the corresponding total loads, etc. in which loads of BOD5, COD and SS are significant, about 581,570 tons, 1,035,403 tons and 639,153 tons per year, respectively, and tend to increase in the future, requiring appropriate solutions.

Management and Status of Japanese Public Waters

1991 ◽  
Vol 23 (1-3) ◽  
pp. 1-10 ◽  
Author(s):  
Takeshi Goda
Keyword(s):  
Water Quality ◽  
Coastal Waters ◽  
Industrial Wastewater ◽  
Quality Standards ◽  
Water Bodies ◽  
Industrial Wastewaters ◽  
Quality Of Water ◽  
Japanese Rivers ◽  
Per Capita

The management and status of public water bodies in Japan is discussed. The environmental quality standards which have been set and the levels of compliance with these standards are shown. The water quality of Japanese rivers, lakes, reservoirs, wetlands and coastal waters is described, and eutrophication problems are mentioned. The effects of changes in population density and levels of recycling of industrial wastewaters on the quality of water bodies are discussed. Almost 75% of industrial wastewater is now recycled. Per capita availability of freshwater in Japan is comparatively low, and the construction of 530 dams, in addition to the 2393 dams already in operation, is planned. Irrigation effluents from paddy fields are a major factor which influences river water quality in Japan. The improvement of water quality using various methods is discussed.

scholarly journals Cancer services in Sri Lanka: current status and future directions

2021 ◽  
Vol 33 (1) ◽  
Author(s):  
Umesh Jayarajah ◽  
Anuruddha M. Abeygunasekera
Keyword(s):  
Sri Lanka ◽  
Cancer Prevention ◽  
Systemic Therapy ◽  
Cancer Care ◽  
Current Status ◽  
Main Body ◽  
Prevention Measures ◽  
High Quality Research ◽  
Screening Programs ◽  
Cancer Services

Abstract Background The burden of cancer in Sri Lanka is on the rise. The overall incidence of cancer in Sri Lanka has doubled over the past 25 years with a parallel rise in cancer-related mortality. Cancer has become the second commonest cause of hospital mortality in Sri Lanka. In this review, we aim to provide an overview of the current status and future direction of cancer care in Sri Lanka. Main body In Sri Lanka, cancer services are predominantly provided by the state sector free of charge to the general public. With the establishment of national cancer policy on cancer prevention and control, there has been a commendable improvement in the cancer services provided island-wide. An increasing number of breast, oropharyngeal, thyroid, oesophageal, colorectal, lung, and gastric cancers are being diagnosed and treated annually. Primary prevention measures include restrictions in tobacco and HPV vaccination. Screening programs for selected cancers such as breast, oral and cervical cancers are delivered. Medical oncology units with facilities for systemic therapy and adequately supported by surgical, pathology, and radiology departments have been established in each district general hospital island-wide. Although the current progress is commendable, future changes are necessary to overcome the current limitations and to cater the ever increasing burden of cancer. Measures are necessary to enhance the coverage of Sri Lanka Cancer Registry. Timely high-quality research and audits are essential. Community participation in planning strategies for cancer prevention and treatment is minimal. Community-based palliative care facilities and radiation and other systemic therapy should be made available in all provinces. A culture of multi-disciplinary care with proper referral pathways would help to improve the current setting. Conclusion In conclusion, Sri Lanka has a reasonably balanced and continuously expanding program for prevention, screening, and treatment of cancers. Emphasis on preventive strategies related to reducing tobacco smoking, chewing betel, and obesity, making cancers a notifiable disease, involving the community in planning cancer care and prevention strategies, conducting research to evaluate cost-effectiveness of existing treatment and increasing radiotherapy facilities would further improve the cancer services in Sri Lanka.

Water quality assessment and apportionment source of pollution from neighbouring rivers in the Tapeng Lagoon (Taiwan) using multivariate analysis: a case study

2006 ◽  
Vol 54 (11-12) ◽  
pp. 47-55 ◽  
Author(s):  
S.-W. Liao ◽  
J.-Y. Sheu ◽  
J.-J. Chen ◽  
C.-G. Lee
Keyword(s):  
Water Quality ◽  
Water Resource Management ◽  
Pollution Prevention ◽  
Water Quality Assessment ◽  
Stream Pollution ◽  
Effect Factor ◽  
Habitat Recovery ◽  
Quality Of Water ◽  
Source Of Pollution

Factor analysis was conducted to explain the characteristics and variation in the quality of water during the disassembly of oyster frames and fishery boxes. The result shows that the most important latent factors in the Tapeng Lagoon are the ocean factor, the primary productivity factor, and the fishery pollution factor. Canonical discriminant analysis is applied to identify the source of pollution in neighbouring rivers outside the Tapeng Lagoon. The two constructed discriminant functions (CDFs) showed a marked contribution to all the discriminant variables, and that total nitrogen, algae, dissolved oxygen, and total phosphate combined in the nutrient effect factor. The recognition capacities in these two CDFs were 95.6% and 4.4%, respectively. The water quality in the Kaoping river most strongly affected the water quality in the Tapeng Lagoon. Disassembling the oyster frames and fishery boxes improved the water quality markedly. However, environmental topographic conditions indicate that strengthening stream pollution prevention and constructing another entrance to the ocean are the best approaches for improving the quality of water in the Tapeng Lagoon by reducing eutrophication. These approaches and results yield useful information concerning habitat recovery and water resource management.

Rehabilitation studies and recovery of a once lifeless estuary: the Golden Horn

2005 ◽  
Vol 51 (11) ◽  
pp. 27-35 ◽  
Author(s):  
A. Yüksek ◽  
E. Okuş ◽  
N. Yılmaz
Keyword(s):  
Water Quality ◽  
Anthropogenic Impacts ◽  
Marine Life ◽  
Resistant Species ◽  
Golden Horn ◽  
Rich Diversity ◽  
Short Period ◽  
The 1960S ◽  
Outer Estuary ◽  
Day By Day

Within this study fluctuations in biodiversity of the Golden Horn from past to present are evaluated. Limited studies and observations dating back to 60 years ago pointed out the importance of the Golden Horn as a fishery. Unfortunately, in accordance with increase in unplanned settlements and industry around the Golden Horn in the 1960s, pollution stress became a demanding factor for this unique environment, affecting biodiversity adversely. Preliminary studies in the 1990s indicated survival of only a couple of pollution-resistant species, at the relatively cleaner outer estuary. Following intensification of “still ongoing” rehabilitation studies in 1998, a remarkable day-by-day recovery in marine life has began, in regard to improvements in water quality. Surveys conducted in 2002 using SCUBA, documented the level of diversification of life at the Golden Horn. Extended till Haliç Bridge, all appropriate substratums were intensely covered by macrobenthic forms and particularly filter feeders dominated the plankton-rich ecosystem. Detection of seahorses at the inner-middle parts of the estuary, in addition to numerous fish, invertebrate and macroalgae species, clearly depicted the level of recovery and change in the ecosystem. All results support the existence of a dynamic biological life at the Golden Horn, improving considerably with rehabilitation studies. Achieving the diversity of the 1940s is not possible, since the Black and Marmara seas, highly influencing water quality in the Golden Horn are also suffering from anthropogenic impacts and are far beyond their rich diversity in the 1940s. However, it is obvious that ecosystems should recover when mankind gave a chance to them. Recovery of the recently lifeless Golden Horn in such a short period of time is a very good example.

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