Diffuse subsurface zinc loads from mining areas in the Dalälven River Basin, Sweden

2009 ◽  
Vol 40 (5) ◽  
pp. 445-453 ◽  
Author(s):  
Christian Baresel ◽  
Georgia Destouni
Keyword(s):  
Drainage Basin ◽  
Flow Analysis ◽  
Analysis Approach ◽  
Input Output ◽  
Mining Areas ◽  
Environmental Monitoring System ◽  
Mass Load ◽  
Output Flow ◽  
Mass Flows ◽  
The Baltic

The zinc load from the Dalälven River to the Baltic Sea is greater than for any other watercourse in Sweden. This paper investigates zinc mass flows into and through the Dalälven River from major mining areas within its drainage basin. Reported zinc mass flow data for this river are re-analyzed using an input-output flow analysis approach. Results show major inconsistencies in previous data interpretations which totally neglected possible zinc mass load contributions from the groundwater system to the river. This paper quantifies significant subsurface zinc load contributions that are consistent with all independently available data. Furthermore, a possible explanation for why these subsurface contributions may have been missed in previous studies and by the prevailing Swedish environmental monitoring system is provided. The study indicates that the input-output flow analysis approach may be generally useful for identifying and quantifying diffuse, unmonitored and uncertain pollutant load contributions from ground- to surface water systems.

scholarly journals Danish Plastic Mass Flows Analysis

2020 ◽  
Vol 12 (22) ◽  
pp. 9639
Author(s):  
Edward Vingwe ◽  
Edgar Towa ◽  
Arne Remmen
Keyword(s):  
Circular Economy ◽  
Statistical Data ◽  
National Level ◽  
Flow Analysis ◽  
Plastic Waste ◽  
Waste Generation ◽  
Material Flows ◽  
Input Output ◽  
Design Strategies ◽  
Mass Flows

In this paper, material flows and resource potentials for plastics at a national level in Denmark are mapped using an Environmentally Extended Multiregional Input-Output (EE-MRIO) database. EE-MRIO offers an operative improvement to current and prevalent methods for assessing the industrial and societal metabolism of resources, including plastics. The Exiobase is applied to map (1) the major sources, (2) calculate the total supply, (3) uses of plastics and waste generation, and (4) end of life pathways in order to indicate the potentials of plastics in the circular economy in Denmark with a focus on recycling. Furthermore, it elaborates how and why this method for performing Mass Flow Analysis (MFA) differs from mainstream assessments of material flows and from default uses of national statistical data. Overall, the results are that Denmark has a total supply of ≈551 kilotonnes (Kt) of plastics, out of which ≈522 Kt are used domestically and ≈168 Kt of plastic waste are generated annually. Out of the yearly amount of plastic waste, ≈50% is incinerated and 26% is recycled. These results indicate significant potentials for applying circular economy strategies and identify relevant sectors for closing the plastic loops. However, other initiatives are necessary, such as improvements in product design strategies, in the collection and sorting systems as well as in cross-sectoral collaboration.

Extended input-output flow analysis of ecosystems

1986 ◽  
Vol 32 (1-3) ◽  
pp. 137-147 ◽  
Author(s):  
Masahiko Higashi
Keyword(s):  
Flow Analysis ◽  
Input Output ◽  
Output Flow

The Knudsen theorem and the Total Exchange Flow analysis framework applied to the Baltic Sea

2018 ◽  
Vol 165 ◽  
pp. 268-286 ◽  
Author(s):  
Hans Burchard ◽  
Karsten Bolding ◽  
Rainer Feistel ◽  
Ulf Gräwe ◽  
Knut Klingbeil ◽  
...  
Keyword(s):  
Baltic Sea ◽  
Flow Analysis ◽  
Exchange Flow ◽  
Analysis Framework ◽  
The Baltic Sea ◽  
The Baltic ◽  
Total Exchange

A usable input-output flow chart of a municipal water system

1981 ◽  
Vol 73 (1) ◽  
pp. 3-8
Author(s):  
Ventura Bengoechea ◽  
David W. Hendricks ◽  
Roger E. Krempel
Keyword(s):  
Water System ◽  
Flow Chart ◽  
Input Output ◽  
Municipal Water ◽  
Output Flow
Sign in / Sign up

Export Citation Format

Share Document