Influence of Acid Deposition on Inland Water Chemistry-A Case Study from Hyogo Prefecture, Japan

2001 ◽  
pp. 1535-1540
Author(s):  
Yukio Komai ◽  
Satoshi Umemoto ◽  
Takanobu Inoue
2021 ◽  
Vol 13 (12) ◽  
pp. 6797
Author(s):  
Peter Mako ◽  
Andrej Dávid ◽  
Patrik Böhm ◽  
Sorin Savu

Sustainability of transport systems is a key issue in transport. The main question is whether high levels of road and railway transport in areas along navigable waterways is an effective solution for this issue. The Danube waterway is an example. Generally, it is not observed that traffic performance is not as high as on the Rhine. This paper deals with the revelation of the available capacity of this waterway based on approximation functions and their comparison with real transport performances. This methodology points to the level of use of waterways. The connection of this model with the production of fossil fuels creates a basis for a case study. The case study in this paper offers a possibility for a sustainable and environmentally friendly transition from road transport to inland water transport on the example of specific transport routes. The main contribution of this paper is a presentation of the application of sustainable models of use transport capacity to increase the share of environmentally friendly and sustainable inland water transport. The conclusion based on the case study and materials is that the available capacity of inland water transport on the Danube could support the transition of traffic performances to sustainable and environmentally friendly means of transport.


2000 ◽  
Vol 4 (1) ◽  
pp. 125-140 ◽  
Author(s):  
C. Curtis ◽  
T. Allott ◽  
J. Hall ◽  
R. Harriman ◽  
R. Helliwell ◽  
...  

Abstract. The critical loads approach is widely used within Europe to assess the impacts of acid deposition on terrestrial and freshwater ecosystems. Recent work in Great Britain has focused on the national application of the First-order Acidity Balance (FAB) model to a freshwaters dataset of 1470 lake and stream water chemistry samples from sites across Britain which were selected to represent the most sensitive water bodies in their corresponding 10 km grid square. A ``Critical Load Function" generated for each site is compared with the deposition load of S and N at the time of water chemistry sampling. The model predicts that when catchment processes reach steady-state with these deposition levels, increases in nitrate leaching will depress acid neutralizing capacity (ANC) below the critical threshold of 0 μeql-1 at more than a quarter of the sites sampled, i.e. the critical load of acid deposition is exceeded at these sites. The critical load exceedances are generally found in upland regions of high deposition where acidification has been previously recognised, but critical loads in large areas of western Scotland are also exceeded where little biological evidence of acidification has yet been found. There is a regional variation in the deposition reduction requirements for protection of the sampled sites. The FAB model indicates that in Scotland, most of the sampled sites could be protected by sufficiently large reductions in S deposition alone. In the English and Welsh uplands, both S and N deposition must be reduced to protect the sites. Current international commitments to reduce S deposition throughout Europe will therefore be insufficient to protect the most sensitive freshwaters in England and Wales. Keywords: critical loads; acidification; nitrate; FAB model; acid deposition


1976 ◽  
Vol 27 (1) ◽  
pp. 73
Author(s):  
RT Buckney

A two-number description of the major ion chemistry of inland waters is derived from data on total concentration and the relative proportions of major ions (stoichiometry), and used to describe some broad features of Tasmanian inland waters. Equilibrium and other controls on pH and silica concentration are identified. Other possible uses of the binary numerical description are discussed.


2019 ◽  
Vol 4 (1) ◽  
pp. 63-79
Author(s):  
H. Hosseini ◽  
A. Shakeri ◽  
M. Rezaei ◽  
M. Dashti Barmaki ◽  
M. Rastegari Mehr

2015 ◽  
Vol 49 (5) ◽  
pp. 2665-2674 ◽  
Author(s):  
James W. Sutherland ◽  
Frank W. Acker ◽  
Jay A. Bloomfield ◽  
Charles W. Boylen ◽  
Donald F. Charles ◽  
...  

2011 ◽  
Vol 137 (7) ◽  
pp. 617-628 ◽  
Author(s):  
Meijun Cai ◽  
Amy M. Johnson ◽  
John S. Schwartz ◽  
Stephen E. Moore ◽  
Matt A. Kulp

Author(s):  
Roman Cieśliński

AbstractThe paper is based on the hypothesis that coastal lakes significantly affect changes in the quality of freshwater coming from catchments, which is best reflected in the reduction of biogenic loads. Some of the main reasons for this phenomenon include unique geographic locations of coastal lakes and physical and chemical properties of their waters as well as other hydrographic determinants that affect water circulation in catchments. The study area covered the direct drainage basin of Lake Lebsko, which is located in Słowiński National Park in northern Poland, on the coast of the southern Baltic Sea. The study was conducted from June 2008 to October 2010. Fieldwork was the main part of the research project and included hydrographic mapping, water sampling for laboratory analysis, and measurement of the discharge in all tributaries and outflows of the studied lake. Water chemistry data for Lake Lebsko indicate a significant accumulation of biogenic materials in the lake, which proves a strong effect exerted by the lake on the incoming water. This is true for both total chemical loads per year as well as concentrations of selected ions over short time intervals. This standard pattern may be interrupted by seawater intrusions that alter water chemistry in the whole lake.


2015 ◽  
Vol 35 (3) ◽  
pp. 53-62 ◽  
Author(s):  
Tomasz Nowakowski ◽  
Jan Kulczyk ◽  
Emilia Skupień ◽  
Agnieszka Tubis ◽  
Sylwia Werbińska-Wojciechowska

Among different transportation modes, inland water transport is recognized as a low-cost, environmentally friendly way of transporting. The use of this mode in Poland encounters many challenges. Thus, the investigation of development possibilities by analysing the revitalization profitability and navigability restoration of Lower Vistula river should be explored. Following this, the article includes the summary of obtained results of the project INWAPO carrying out and regards development of infrastructure and sea/river ports, demand forecast for transportation, external costs estimation and the main benefits from lower Vistula river revitalization. The main analysis is done with the assumption of IV (or higher) navigable class of the Vistula river.


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