A model for approving and controlling sea water pollution for recreational activity

1991 ◽  
Vol 31 (1) ◽  
pp. 479-487 ◽  
Author(s):  
A. Mates ◽  
Y. Scheinberg
Author(s):  
Keizo Negi ◽  
Keizo Negi ◽  
Takuya Ishikawa ◽  
Takuya Ishikawa ◽  
Kenichiro Iba ◽  
...  

Japan experienced serious water pollution during the period of high economic growth in 1960s. It was also the period that we had such damages to human health, fishery and living conditions due to red tide as much of chemicals, organic materials and the like flowing into the seas along the growing population and industries in the coastal areas. Notable in those days was the issues of environment conservation in the enclosed coastal seas where pollutants were prone to accumulate inside due to low level of water circulation, resulting in the issues including red tide and oxygen-deficient water mass. In responding to these issues, we implemented countermeasures like effluent control with the Water Pollution Control Law and improvement/expansion of sewage facilities. In the extensive enclosed coastal seas of Tokyo Bay, Ise Bay and the Seto Inland Sea, the three areas of high concentration of population, we implemented water quality total reduction in seven terms from 1979, reducing the total quantities of pollutant load of COD, TN and TP. Sea water quality hence has been on an improvement trend as a whole along the steady reduction of pollutants from the land. We however recognize that there are differences in improvement by sea area such as red tide and oxygen-deficient water mass continue to occur in some areas. Meanwhile, it has been pointed out that bio-diversity and bio-productivity should be secured through conservation/creation of tidal flats and seaweed beds in the view point of “Bountiful Sea” To work at these challenges, through the studies depending on the circumstances of the water environment in the enclosed coastal seas, we composed “The Policy of Desirable State of 8th TPLCS” in 2015. We have also added the sediment DO into the water quality standard related to the life-environmental items in view of the preservation of aquatic creatures in the enclosed water areas. Important from now on, along the Policy, is to proceed with necessary measures to improve water quality with good considerations of differences by area in the view point of “Beautiful and bountiful Sea”.


1961 ◽  
Vol 27 (3) ◽  
pp. 220-224
Author(s):  
Hitoshi MOROOKA
Keyword(s):  

Author(s):  
C Guedes Soares ◽  
M Panayotova ◽  
Y Garbatov
Keyword(s):  

2018 ◽  
Vol 7 (1) ◽  
pp. 76-83
Author(s):  
Žarko Koboević ◽  
Branka Milošević-Pujo

This paper addresses international, Croatian and EU legislation on the prevention of sea water pollution by sewage from vessels. The paper also highlights the disadvantages of international legislation on the protection of coastal sea against pollution by vessel sewage. International legislation is enacted at the global level rather than for each individual coastal sea due to each sea having different exposure to pollution. Either the insufficiently comprehensive national legislation needs to be amended or, more suitably and effectively in the case of the Republic of Croatia, new rules regulating the prevention of coastal sea pollution at the national level and the prevention of negative influence on the marine eco-system, human health and economy established.


Author(s):  
Keizo Negi ◽  
Keizo Negi ◽  
Takuya Ishikawa ◽  
Takuya Ishikawa ◽  
Kenichiro Iba ◽  
...  

Japan experienced serious water pollution during the period of high economic growth in 1960s. It was also the period that we had such damages to human health, fishery and living conditions due to red tide as much of chemicals, organic materials and the like flowing into the seas along the growing population and industries in the coastal areas. Notable in those days was the issues of environment conservation in the enclosed coastal seas where pollutants were prone to accumulate inside due to low level of water circulation, resulting in the issues including red tide and oxygen-deficient water mass. In responding to these issues, we implemented countermeasures like effluent control with the Water Pollution Control Law and improvement/expansion of sewage facilities. In the extensive enclosed coastal seas of Tokyo Bay, Ise Bay and the Seto Inland Sea, the three areas of high concentration of population, we implemented water quality total reduction in seven terms from 1979, reducing the total quantities of pollutant load of COD, TN and TP. Sea water quality hence has been on an improvement trend as a whole along the steady reduction of pollutants from the land. We however recognize that there are differences in improvement by sea area such as red tide and oxygen-deficient water mass continue to occur in some areas. Meanwhile, it has been pointed out that bio-diversity and bio-productivity should be secured through conservation/creation of tidal flats and seaweed beds in the view point of “Bountiful Sea” To work at these challenges, through the studies depending on the circumstances of the water environment in the enclosed coastal seas, we composed “The Policy of Desirable State of 8th TPLCS” in 2015. We have also added the sediment DO into the water quality standard related to the life-environmental items in view of the preservation of aquatic creatures in the enclosed water areas. Important from now on, along the Policy, is to proceed with necessary measures to improve water quality with good considerations of differences by area in the view point of “Beautiful and bountiful Sea”.


2020 ◽  
Vol 202 ◽  
pp. 05022
Author(s):  
Fatimatuzzahro ◽  
Mursid Raharjo ◽  
Nurjazuli

Coastal area of Semarang City is susceptible to water pollution and one of which is due to sea water intrusion. Diarrhea is an infectious disease that causes more than 26,93% of mortality in children under five years old and cases average over 30% in coastal area of Semarang City. The aim of this study was to evaluate assotiation between Water Pollution Index (WPI) and incidence of diarrhea in children under five years old. This type of research is an observational analytic study with a cross sectional study design. Sampel consisted of 18 respondens from 7 districts in coastal area of Semarang City. Independent variable is water pollution index which is calculated based on parameters of pH, salinity, TDS, and E.coli. Dependent variable is incidence of diarrhea under five years old. Data analysis used univariate and bivariate analysis using rank spearman correlation and Geographical Information System (GIS). Result found moderate category of water pollution index in Mangkang Kulon, Mangunharjo, Mangkang Wetan, and Bandarharjo. We identified associations between water pollution index (p 0,014, r: 0,857), E.coli in water (p 0,017, r: 0,842), salinity in water (p 0,013, r: 0,860), TDS in water (p 0,011, r: 0,871) and incidence of diarrhea. There is no relationship significantly between pH in water (p 0,782, r: -0,130) and incidence of diarrhea. WPI provides information on water quality and contaminants in water has potential trigger to digestive disorders. Cases of diarrhea occured by pathogenic microbiological, material, and chemical compounds. Conclussion, there is assotiation between water pollution index and incidence of diarrhea in coastal area of Semarang City.


Author(s):  
Sudaryanto Martosuparno ◽  
Wilda Naily ◽  
Rizka Maria

Proses hidrogeokimia terjadi karena interaksi antara airtanah dengan air laut. Proses tersebut akan mempengaruhi komposisi kimia di lingkungan pesisir. Untuk mengetahui seberapa jauh interaksi tersebut telah terjadi, dilakukan analisis tipe air berdasarkan jumlah anion dan kation yang paling dominan, dan analisis nisbah ion-ion utama. Pengambilan conto dilakukan di 38 lokasi conto air di pesisir barat Kabupaten Serang dan Pandeglang. Hasil penelitian menunjukkan tipe air didominasi oleh Ca(HCO3)2 55,26%, NaHCO3 39,47%, Ca(SO4)2 2,63% and NaMix 2,63%. Sementara hasil analisis nisbah ion utama Na+/Cl-, Ca2+/Mg2+, dan Ca2+/SO42- mengindikasikan bahwa telah terjadi pencemaran air laut di beberapa dataran alluvial pesisir Pandeglang. Pada sebagian besar pesisir barat Serang dan Pandeglang sedang terjadi proses pencemaran atau intrusi air laut. Occurrence of hydrogeochemical process is due to the interaction between groundwater and sea water. The process will affect the chemical composition in the coastal environment. To find out how far the interaction has taken place, the water type was analysed based on the amount of most dominant anion and cation, and also the major ions ratios. The samplings were conducted in 38 locations on the west coast of Serang and Pandeglang Regencies. Results showed that the water type was dominated by Ca(HCO3)2 55,26%, NaHCO3 39,47%, Ca(SO4)2 2,63% and NaMix 2,63%. While the results of major ion analysis of Na+/Cl-, Ca2+/Mg2+, and Ca2+/SO42- indicated that there has been the sea water pollution in some coastal alluvial plains of Pandeglang. In addition, the process of pollution or sea water intrusion has been occurring on most of the west coast of Serang and Pandeglang.


Marine pollution is a major problem nowadays in our country. Contamination is the entrance into the environment of toxic chemicals. Every material that has undesirable changes in its composition, position or quantity can be the pollutant in terms of the physical, chemical or biological properties of air, water, and soil. The pollution level is higher in the nearby seashore because the density of waves is lower in the nearby sea. 70% to 80% of oxygen for humans comes from the sea. Marine pollution generally affects ecosystem health, public health, quality of recreational water and economic viability in the following ways: Mechanical, Saphrogenic, Mutagenic, and Carcinogenic. Non-biodegradable plastic is a large portion and a major danger. Sea turtles err in their jellyfish plastic bags and die from internal blockages. 100,000 marine mammals are killed and two million birds die every year. The water is contaminated by pollution by the precipitation of the soil, by air-borne rain and by shipwrecks. Human activity releases 5-fold mercury and17-fold lead from natural sources. Tourism development results in water pollution not only in water-scarce areas with relatively abundant water resources. Because water is used extensively in the tourism industry, it is apparent that during tourism growth, tourism will have an important impact on the climate of the water, including water pollution and a lack of water, which are the key barriers to the creation of a sustainable tourism industry. Solid waste disposal in the sea (they didn’t decompose they get dumped inside the sea). Due to ship accidents in the sea oil gets contaminant inside the sea, some special species are fully destroyed because of this problem. So we are collecting a water sample from East Coast Region in Ramanathapuram District, Tamilnadu, India. Detect the amount of pollution in the water sample through a test and compared it with permissible limits


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