scholarly journals Violation of Marine Pollution Laws in Karachi Harbour Became an Environmental Challenge

2017 ◽  
Vol 5 (1) ◽  
pp. 66
Author(s):  
Muhammad Tahir
Keyword(s):  
Heavy Metals ◽  
Marine Environment ◽  
Pollution Control ◽  
Coastal Waters ◽  
Marine Pollution ◽  
Political Will ◽  
Marine Life ◽  
Standard Values ◽  
Marine Vessels ◽  
Environmental Challenge

This article appraises the Factors deteriorating marine environment due to violation of marine pollution laws in Pakistani waters. The environmental degradation of Pakistani waters especially in Karachi coast became a serious threat to the marine environment, marine life as well as human health and marine vessels since long for society. It is determined the level and the distribution pattern of various heavy metals in the coastal waters significantly higher than the standard values. Pollution created by a number of sources is the major contributing factor in this regard. Amongst all, the deteriorating environment in Pakistani waters warrants immediate corrective actions to control Marine Pollution in order to curtail further destruction by this menace. Many steps at Governmental and private level have been initiated however, improvement is a dream. It is rightly to mention that there is no dearth of legislation on the pollution control but implementation of the same by all the concerned agencies and cooperation by public in true letter and spirit is a dream. The prevailing environment cannot be improved without effective enforcement of existing laws in its true perspective by removing all obstacles and difficulties with creating political will of society.

scholarly journals Enforcement and sanctioning system deficit under UNCLOS? A closer look at the Fukushima accident

2019 ◽  
pp. 47-59
Author(s):  
Hanna Banaszek
Keyword(s):  
International Cooperation ◽  
Marine Environment ◽  
Marine Pollution ◽  
Law Of The Sea ◽  
Fukushima Accident ◽  
The Public ◽  
Marine Life ◽  
Sources Of Pollution ◽  
Fukushima Daiichi ◽  
Source Of Pollution

The marine pollution is rarely debated from the perspective of land-based sources of pollution under the 1982 UN Convention on the Law of the Sea (UNCLOS). This article centres not only on a land-based source of pollution of the sea, but also a very particular one – the 2011 Fukushima Daiichi accident. Apart from causing severe infrastructural damage and posing a radiation-related threat to the public, Fukushima has had a lasting impact on the marine environment, too. Especially,since the operator of the plant has so far been unsuccessful in completely eliminating the radioactive leakage into the seas. This article considers the actual impact of the accident on the marine life along with the relevant recovery and remediation measures aimed to limit said impact, all in the light of the provisions of UNCLOS. Especially, with regard to its problematic (rather underdeveloped) enforcement and sanctioning system which should be more balanced, considering the various contemporary sources of pollution of the seas. Notwithstanding, UNCLOS will most likely further strengthen international cooperation with the ultimate aim of preventing the pollution of the world’s oceans.

The Structure of Environmental Background Value of Cadmium in Jiaozhou Bay Waters

2014 ◽  
Vol 644-650 ◽  
pp. 5333-5335 ◽  
Author(s):  
Dong Fang Yang ◽  
Feng You Wang ◽  
You Fu Wu ◽  
Hua Zhong He ◽  
Si Xi Zhu
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Marine Environment ◽  
Pollution Control ◽  
Jiaozhou Bay ◽  
Background Value ◽  
Environmental Background

Sources of heavy metals in marine environment could be cagetoried as natrual source and artificial source. The portion from natrual source forms the environmental background value of heavy metal. This paper proposed the theory of the structure of environmental background value for heavy metal. Finally, this paper applied this theory in the analysis of the environmental background value of Cadmiun (Cd) in Jiaozhou Bay waters. This theory provides basis for pollution control and remediation of marine environment.

scholarly journals La nouvelle convention sur le droit de la mer et la lutte contre la pollution marine d'origine tellurique

2005 ◽  
Vol 24 (2) ◽  
pp. 323-377
Author(s):  
Louis Taschereau
Keyword(s):  
International Cooperation ◽  
Marine Environment ◽  
Pollution Control ◽  
Marine Pollution ◽  
Regional Cooperation ◽  
The Law

Several articles of the Charter of the Law of the Sea deal with land-based pollution, which is responsible for approximately 90% of all high sea's pollution. A detailed study of these articles shows that the Charter under-emphasizes the importance of land-based pollution. Authority to solve marine pollution is left to coastal states, who are but vaguely obliged to encourage means of regional cooperation to curtail damage to marine environment. These obligations are a first step in the long and difficult process of bringing about efficient pollution control by way of international cooperation.

Marine Quality Standards: Their Derivation and Application in the United Kingdom

1985 ◽  
Vol 17 (6-7) ◽  
pp. 1187-1198 ◽  
Author(s):  
G. Mance ◽  
A. R. O'Donnell
Keyword(s):  
Coastal Waters ◽  
Sublethal Effects ◽  
Quality Standards ◽  
Toxicity Data ◽  
Marine Life ◽  
Nickel Zinc ◽  
The United Kingdom ◽  
The Common ◽  
Lead Nickel ◽  
The Impact

This paper discusses the derivation of environmental quality standards for coastal waters and the difficulties of using such standards for controlling industrial discharges. Attention is focused on the common List II substances, copper, chromium, lead, nickel, zinc and arsenic - and their effects on marine life. The adequacy of existing toxicity data is discussed and it is concluded that long exposure tests are required to provide information on sublethal effects. Such data are currently limited. It is also important that consideration be given to the effects that reducing salinities and increasing temperatures have in increasing the toxicity of these substances. The complexity of interpreting the results of laboratory toxicity data to coastal waters is discussed with reference to a study of the impact of an industrial discharge.

The impact of urban effluents on the coastal marine environment of Mediterranean islands

1995 ◽  
Vol 32 (9-10) ◽  
pp. 85-94 ◽  
Author(s):  
Michael O. Angelidis
Keyword(s):  
Heavy Metals ◽  
Organic Matter ◽  
Marine Environment ◽  
Suspended Particle ◽  
Pollution Source ◽  
Mediterranean Islands ◽  
Coastal Marine Environment ◽  
Coastal Marine ◽  
The Impact ◽  
The City

The impact of the urban effluents of Mytilene (Lesvos island, Greece) on the receiving coastal marine environment, was evaluated by studying the quality of the city effluents (BOD5, COD, SS, heavy metals) and the marine sediments (grain size, organic matter, heavy metals). It was found that the urban effluents of Mytilene contain high organic matter and suspended particle load because of septage discharge into the sewerage network. Furthermore, although the city does not host important industrial activity, its effluents contain appreciable metal load, which is mainly associated with the particulate phase. The city effluents are discharged into the coastal marine environment and their colloidal and particulate matter after flocculation settles to the bottom, where is incorporated into the sediments. Over the years, the accumulation of organic matter and metals into the harbour mud has created a non-point pollution source in the relatively non-polluted coastal marine environment of the island. Copper and Zn were the metals which presented the higher enrichment in the sediments of the inner harbour of Mytilene.

scholarly journals SMFC as a tool for the removal of hydrocarbons and metals in the marine environment: a concise research update

2021 ◽  
Author(s):  
Edvige Gambino ◽  
Kuppam Chandrasekhar ◽  
Rosa Anna Nastro
Keyword(s):  
Marine Environment ◽  
Microbial Fuel Cells ◽  
Energy Production ◽  
Marine Pollution ◽  
Future Perspectives ◽  
Sediment Remediation ◽  
Marine Food Chain ◽  
Marine Food ◽  
Accumulation Of Pollutants ◽  
Insight Into

AbstractMarine pollution is becoming more and more serious, especially in coastal areas. Because of the sequestration and consequent accumulation of pollutants in sediments (mainly organic compounds and heavy metals), marine environment restoration cannot exempt from effective remediation of sediments themselves. It has been well proven that, after entering into the seawater, these pollutants are biotransformed into their metabolites, which may be more toxic than their parent molecules. Based on their bioavailability and toxic nature, these compounds may accumulate into the living cells of marine organisms. Pollutants bioaccumulation and biomagnification along the marine food chain lead to seafood contamination and human health hazards. Nowadays, different technologies are available for sediment remediation, such as physicochemical, biological, and bioelectrochemical processes. This paper gives an overview of the most recent techniques for marine sediment remediation while presenting sediment-based microbial fuel cells (SMFCs). We discuss the issues, the progress, and future perspectives of SMFC application to the removal of hydrocarbons and metals in the marine environment with concurrent energy production. We give an insight into the possible mechanisms leading to sediment remediation, SMFC energy balance, and future exploitation.

Marine pollution by some heavy metals and physiological response of Ruditapes decussatus

2018 ◽  
Vol 4 (3) ◽  
pp. 199-215
Author(s):  
G. El Khodary ◽  
E. Radwan ◽  
M. Elghazaly ◽  
D. El Bahnasawy
Keyword(s):  
Heavy Metals ◽  
Physiological Response ◽  
Marine Pollution ◽  
Ruditapes Decussatus

Distribution of heavy metals in seawater, sediment and biota of Jinhae Bay, Korea

1994 ◽  
Vol 30 (10) ◽  
pp. 173-177 ◽  
Author(s):  
Lee Chan-Won ◽  
Kwon Young-Tack
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Coastal Waters ◽  
Heavy Metal Contamination ◽  
Heavy Metal Concentration ◽  
Industrial Wastes ◽  
Subsequent Increase ◽  
Zinc Cadmium ◽  
Jinhae Bay ◽  
Copper Lead

Over the past two decades, the coastal waters of Jinhae Bay have been extensively used by coastal communities and industries for the disposal of domestic and various industrial wastes, therefore increasing the level of pollutants in coastal waters with a subsequent increase in sediments, especially of heavy metals. Specific objectives of this research are to investigate the distribution of heavy metal concentration in biota, to compare the concentrations with those in sediment and water and to relate the bioconcentration to the different heavy metals in biota obtained from several sites. Sixty one percent of heavy metals was found in particulate form during the high runoff season and 32% during the dry season. The behavior of the particulate metals after flowing in to the enclosed coastal sea is an important factor in heavy metal contamination. Copper, lead and chromium contamination of sediment was revealed at several sites. The bioconcentration factors (BCFs) of zinc, cadmium, copper, nickel, chromium and lead by the mussel (Mytilus edulis) were determined as 2,900, 2,814, 807, 423, 228 and 127 in the decreasing order, respectively. The areas located nearest to highly populated city and industries exhibited mussels with the largest accumulation of copper, lead and chromium.

Sign in / Sign up

Export Citation Format

Share Document