Urban Impact in the History of Water Quality in the Stockholm Archipelago

AMBIO ◽  
2001 ◽  
Vol 30 (4) ◽  
pp. 277-281 ◽  
Author(s):  
Lotta Johansson ◽  
Kerstin Wallström
Keyword(s):  
Water Quality ◽  
Urban Impact ◽  
History Of ◽  
Stockholm Archipelago

Long Term Monitoring of the Macrobenthos of the Upper Clyde Estuary

1984 ◽  
Vol 16 (5-7) ◽  
pp. 359-373 ◽  
Author(s):  
Anne R Henderson
Keyword(s):  
Water Quality ◽  
Seasonal Variation ◽  
Organic Pollution ◽  
Long Term Changes ◽  
Pollution Loading ◽  
Faunal Density ◽  
History Of ◽  
Long Term Monitoring ◽  
Term Monitoring

The sublittoral macrobenthic invertebrate populations of the Upper Clyde Estuary are described. The estuary has a long history of organic pollution. The long term changes in species composition, faunal density and dominance patterns between 1974 and 1980 are presented. The fauna is dominated by brackish, pollution tolerant oligochaetes and polychaetes. Fluctuations in populations can be related to both seasonal variation in environmental conditions and long term improvements in water quality through a reduction in pollution loading to the estuary.

scholarly journals Assessing Anthracene and Arsenic Contamination within Buffalo River Sediments

2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
Adrian Gawedzki ◽  
K. Wayne Forsythe
Keyword(s):  
Water Quality ◽  
Spatial Interpolation ◽  
River Sediments ◽  
The United States ◽  
Arsenic Contamination ◽  
Industrial Activity ◽  
Interpolation Technique ◽  
History Of ◽  
Buffalo River ◽  
Area Of Concern

Anthracene and arsenic contamination concentrations at various depths in the Buffalo River were analyzed in this study. Anthracene is known to cause damage to human skin and arsenic has been linked to lung and liver cancer. The Buffalo River is labelled as an Area of Concern defined by the Great Lakes Water Quality Agreement between Canada and the United States. It has a long history of industrial activity located in its near vicinity that has contributed to its pollution. An ordinary kriging spatial interpolation technique was used to calculate estimates between sample locations for anthracene and arsenic at various depths. The results show that both anthracene and arsenic surface sediment (0–30 cm) is less contaminated than all subsurface depths. There is variability of pollution within the different subsurface levels (30–60 cm, 60–90 cm, 90–120 cm, 120–150 cm) and along the river course, but major clusters are identified throughout all depths for both anthracene and arsenic.

scholarly journals Environment protection in Hungary after the change of the system in the early 1990s

2009 ◽  
pp. 61-72
Author(s):  
Imre Nadj
Keyword(s):  
Water Quality ◽  
Power Distribution ◽  
Political Change ◽  
Economic Status ◽  
Institutional Structure ◽  
The Political ◽  
Environment Protection ◽  
Water Quality Protection ◽  
History Of

This study provides an overview of the condition and economic status of the environment after the political change in the early 1990s. Moreover, it gives information on the history of the nature and environment protection, as well as on the institutional structure regarding water quality protection and the change in the management and institutional structure with respect to the environment protection. The study also contains an organogram showing ministries that have changed since the 1990s. Furthermore, the organogram contains information on the structure and scope of activities of inspections and the power distribution among local and state authorities.

scholarly journals The history and present of public drinking water supply and its regionalisation in Debrecen

2013 ◽  
pp. 147-151
Author(s):  
Sándor Nagy
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Water Supply ◽  
Public Water Supply ◽  
Considerable Decrease ◽  
The Public ◽  
Public Drinking Water ◽  
History Of ◽  
Sanitation Systems ◽  
Regional Water

The public water supply played a major role in the urbanization of Debrecen city, just like in the case of many other cities. We had plenty of water and so we wasted it. However nowadays we experience a considerable decrease in the level of groundwater which causes an increasing need of energy for pumping. Beside the above mentioned the ecological threat and the decreasing water quality are also major problems. This study attempts to draw attention to the possibilities and the future of the regional water supply, by showing the history of the water supply, the sanitation systems of Debrecen and their present day activities.

Restoration and Environmental Sustainability of a Small British Columbia Urban Lake

1992 ◽  
Vol 27 (2) ◽  
pp. 341-364
Author(s):  
T. G. Northcote ◽  
B. Luksun
Keyword(s):  
Water Quality ◽  
British Columbia ◽  
Fish Species ◽  
Metropolitan Area ◽  
Environmental Sustainability ◽  
Algal Blooms ◽  
Water Transparency ◽  
Educational Institutions ◽  
Urban Lake ◽  
History Of

Abstract Deer Lake and its watershed, entirely within the municipality of Burnaby, is located at the geographic centre of the Greater Vancouver metropolitan area (population 1.5 million). The lake has had a long history of gradually escalating water quality problems that have included high coliform bacterial levels, bans on swimming, “swimmer’s itch” outbreaks, heavy surface algal blooms, dense weed growths in the shallows, low water transparency, and dominance by “coarse” fish species. Nevertheless, the lake has served the community as a regional park providing various outdoor recreational opportunities that have included walking, boating, swimming and fishing. The history of its water quality problems is reviewed, the results of the various investigations and research on the system are summarized, and the attempts to improve and manage lake conditions by the District of Burnaby are outlined. The role that the community, senior levels of government and educational institutions have played in this process is also discussed.

The Use of Water Quality Models in Management Decision Making

1982 ◽  
Vol 14 (9-11) ◽  
pp. 1095-1107 ◽  
Author(s):  
Thomas O. Barnwell ◽  
Peter A. Krenkel
Keyword(s):  
Water Quality ◽  
Control Strategies ◽  
Source Control ◽  
Management Decision ◽  
Local Planning ◽  
Quality Models ◽  
Planning And Design ◽  
Management Decision Making ◽  
History Of ◽  
Water Quality Models

The use of water quality models in three management contexts is described: screening, planning, and design. Screening models are illustrated by describing a methodology applicable to large areas of land and another applied to a large number of chemicals. The application of models in a planning context is illustrated by a local planning agency's use in developing nonpoint source control strategies and by the federal government's use in assessing potential exposure to a pesticide. Development of design criteria is illustrated by summarizing the long history of model use to develop effluent limits in the Holston River basin (Tennessee).

Confirmation of the presence of Trichobilharzia by examination of water samples and snails following reports of cases of cercarial dermatitis

Parasitology ◽  
2009 ◽  
Vol 137 (1) ◽  
pp. 77-83 ◽  
Author(s):  
F. M. SCHETS ◽  
W. J. LODDER ◽  
A. M. DE RODA HUSMAN
Keyword(s):  
Water Quality ◽  
Water Samples ◽  
Standard Procedure ◽  
Cercarial Dermatitis ◽  
Bathing Water ◽  
Novel Approach ◽  
Parasite Detection ◽  
History Of ◽  
Skin Conditions ◽  
Bathing Water Quality

SUMMARYIn case of cercarial dermatitis after exposure to fresh water lakes, managers responsible for bathing water quality wish to confirm the presence of Trichobilharzia, which substantiates taking measures to protect bathers from further exposure. A novel approach, including concentration of suspected water samples by filtration and PCR detection of the parasite, is proposed. This approach has been applied to bathing sites with a history of cercarial dermatitis, sampled from 2005 to 2008. Examination of snails, the standard procedure for confirmation of the parasite's presence, and analysis of water samples, appear to be complementary procedures that enhance the chance of parasite detection in implicated bathing water. Water analysis is particularly valuable when snails cannot be found; it confirmed the presence of Trichobilharzia on 25% of sampling days with reported skin conditions and no snails found. PCR of the ToSau3A repeat directly confirmed the parasite in the water. The application of the combination of analysis of water samples and examination of snails is suggested when cases of (presumptive) cercarial dermatitis are reported or when lakes with a history of cercarial dermatitis are inspected prior to the bathing season, in order to guide interventions to prevent (further) cases of swimmers' itch.

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