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Dissertations / Theses on the topic '"street chemistry"'

Author: Grafiati

Published: 30 May 2022

Last updated: 31 July 2025

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1

Bright, Vivien Bianca. "Street canyon atmospheric composition : coupling dynamics and chemistry." Thesis, University of Birmingham, 2013. http://etheses.bham.ac.uk//id/eprint/4414/.

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A new model for the simulation of street canyon atmospheric chemical processing has been developed, by integrating an existing Large-Eddy Simulation (LES) dynamical model of canyon atmospheric motion with a detailed chemical reaction mechanism, the Reduced Chemical Scheme (RCS), comprising 51 chemical species and 136 reactions, based upon a subset of the Master Chemical Mechanism (MCM). The combined LES-RCS model is used to investigate both the effects of mixing and chemical processing upon air quality within an idealised street canyon. The effect of the combination of dynamical (segregation)

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2

Minakova, K., Serhii Petrov, and S. Radoguz. "How "Street chemistry" and "Street physics" settled at the National Technical University "Kharkiv Polytechnic Institute"." Thesis, Copissaurio Repro – Centro Imp. Unip. Lda. Campus de Gualtar, 2018. http://repository.kpi.kharkov.ua/handle/KhPI-Press/46263.

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3

Williams, Burnett Mia Laverne. "Exploring the Multiplex Detection Capabilities of Raman Spectroscopy on Mock Street Samples Containing Illicitly Manufactured Fentanyls." Wright State University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=wright1580817621806717.

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4

Hirst, Heike. "Ecological influences on diatom assemblage responses to stream chemistry." Thesis, Cardiff University, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.398817.

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5

Moore-Maley, Benjamin Lee. "The inorganic carbonate chemistry of the southern Strait of Georgia." Thesis, University of British Columbia, 2014. http://hdl.handle.net/2429/51770.

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A one-dimensional, biophysical, mixing layer model was modified to hindcast pH and aragonite saturation state (OmegaA) in the southern Strait of Georgia. The model skill in predicting spring phytoplankton bloom timing in previous studies was a key factor in its selection. Dissolved inorganic carbon (DIC) and total alkalinity (TA) were added as state variables, coupled to the existing nitrogen-based biological equations. Additional processes determined to be important to the system such as air-sea gas exchange and nutrient-limited excess carbon uptake were also implemented. pH and OmegaA could

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6

Hui, Cheng. "Air-Stream-Assisted Electrospinning." University of Akron / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=akron1491920416271494.

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7

Oluju, Philemon. "Literature Review of the impacts of riparian vegetation on stream chemistry." Thesis, Högskolan i Halmstad, Akademin för ekonomi, teknik och naturvetenskap, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-35206.

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Water quality in streams around the world continues to be degraded by a series of human activities that feed pollutants into the vulnerable stream ecosystem via surface and subsurface runoff. This continues to accelerate global biodiversity and habitat losses within the stream environments and across entire watersheds with net adverse effects on public health and the ability of communities and ecosystems to adapt or become resilient to the prevalent impacts of climate change. One commonly used approach for protecting stream water from pollution is the use of vegetated riparian buffer zones to

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8

Foster, Helen Jane. "Assessment and modelling of spatio-temporal variability in upland stream chemistry." Thesis, Imperial College London, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.342328.

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9

Covino, Timothy Patrick. "Stream-groundwater interactions in a mountain to valley transition: impacts on watershed hydrologic response and stream water chemistry." Thesis, Montana State University, 2005. http://etd.lib.montana.edu/etd/2005/covino/CovinoT1205.pdf.

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As mountain headwater catchments increase in size to the meso-scale, they incorporate new landscape elements including mountain-valley transition zones. Mountain-valley transition zones form part of the mountain front, influence groundwater (GW)-stream interactions, and impact hydrologic response and stream water composition. Mountain front recharge (MFR) in mountain-valley transition zones and subsequent GW discharge to streams in the valley bottom are important hydrological processes. These GW-stream interactions are dynamic in both space and time, playing a key role in regulating the amount

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10

Amaning, Kwarteng. "Streamwater and sediment chemistry of Ohio's Western Allegheny Plateau ecoregion and their relation to aquatic life." Ohio : Ohio University, 2006. http://www.ohiolink.edu/etd/view.cgi?ohiou1153757100.

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11

Bopp, Jesse A. "Combined effects of water chemistry, canopy cover, and stream size on benthic macroinvertebrates along a central Appalachian stream continuum." Morgantown, W. Va. : [West Virginia University Libraries], 2002. http://etd.wvu.edu/templates/showETD.cfm?recnum=2474.

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Thesis (M.S.)--West Virginia University, 2002.<br>Title from document title page. Document formatted into pages; contains viii, 96 p. : ill., maps (some col.). Includes abstract. Includes bibliographical references (p. 41-51).

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12

Hall, Tavenner Marie. "Evaluating changes in strontium chemistry of stream water in response to environmental stress." Thesis, Massachusetts Institute of Technology, 1995. http://hdl.handle.net/1721.1/54408.

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Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1995.<br>Includes bibliographical references (leaves 47-49).<br>by Tavenner Marie Hall.<br>M.S.

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13

Winland, Ronald Lee. "Acid Coal Mine Drainage in Ohio: Stream Water Quality, Precipitate Chemistry and Mineralogy." The Ohio State University, 1989. http://rave.ohiolink.edu/etdc/view?acc_num=osu1391770757.

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14

Stirling, M. W. "Contrasts in stream water chemistry impact aquatic ecosystem functioning in an agricultural landscape." Thesis, University of Reading, 2016. http://centaur.reading.ac.uk/66295/.

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Given the importance of freshwater ecosystems to human health and wellbeing, the resilience of aquatic communities to pollution from a variety of sources is of increasing concern. Current indices concentrate on structural measures to define stream health. These include community assemblages, in-stream water chemistry, and hydrological impairment through physical modifications. However, ecosystem services provided by freshwater communities rely on the underlying biogeochemical cycles that are a function of metabolic processes. At present, these are not routinely used in assessments of ecologica

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15

Staines, Russell. "The influence of geology on small scale spatial changes in stream water chemistry." Thesis, University of Aberdeen, 1998. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU115813.

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The influence of geology on small scale spatial changes in stream water chemistry has been investigated in the Allt Fileachaidh and Allt an t-Sneachda catchments, in Glen Muick (NE Scotland), using both field and laboratory studies. This research was carried out with the specific aim of investigating the use of small scale spatial changes in stream water chemistry as a geological/geochemical mapping tool. For this purpose, the use of stream water has been compared to the use of stream sediment, a more traditional geochemical sample medium. In addition, the transferability of the method has bee

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16

Ren, Hong. "Electrochemical Modulation of the Sample Stream in Mass Spectrometry /." The Ohio State University, 1995. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487928649987078.

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17

Laird, Mollie Kate. "Spatial and Temporal Changes in Stream Chemistry at Three Watersheds During High Discharge Episodes." Fogler Library, University of Maine, 2006. http://www.library.umaine.edu/theses/pdf/LairdMK2006.pdf.

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18

O'Brien, Christine. "Soil solution and streamwater chemistry in a small forested watershed." Thesis, McGill University, 1993. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=68234.

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The relationship between soils, soil water and stream chemistry was investigated for a first order stream in a small forested watershed in the southern Laurentians, Quebec. The study was restricted to near-stream processes, particularly how the chemistry of water leaving a hillslope influenced stream chemistry. For snowmelt, 1986, a number of naturally occurring chemical elements were used to separate stream flow into three subsurface flowpaths: groundwater, solum and upwelling flow. By quantifying upwelling flow, we introduced a new approach to identify solutions forced from the groundwater u

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19

Zimmer, Margaret Ann. "An evaluation of surface water sources using spatial and temporal variations in stream chemistry in a headwater catchment." Oberlin College Honors Theses / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=oberlin1305995362.

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20

Ness, Lindsay Anne. "Solute deposition to an upland catchment : spatial patterns, temporal trends and links to stream water chemistry." Thesis, University of East Anglia, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.429683.

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21

Olson, John R. "The Influence of Geology and Other Environmental Factors on Stream Water Chemistry and Benthic Invertebrate Assemblages." DigitalCommons@USU, 2012. https://digitalcommons.usu.edu/etd/1327.

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Catchment geology is known to influence water chemistry, which can significantly affect both species composition and ecosystem processes in streams. However, current predictions of how stream water chemistry varies with geology are limited in both scope and precision, and we have not adequately tested the specific mechanisms by which water chemistry influences stream biota. My dissertation research goals were to (1) develop empirical models to predict natural base-flow water chemistry from catchment geology and other environmental factors, (2) extend these predictions to nutrients to establish

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22

Savoie, Sylvain. "Contribution of soil solution chemistry to stream water quality in a small forested watershed during spring snowmelt." Thesis, McGill University, 1988. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=61857.

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23

Fung, Lai-kuen, and 馮麗娟. "An Investigation of the stream water chemistry in a small drainage basin in Shek Kong, Hong Kong." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2000. http://hub.hku.hk/bib/B22288077.

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24

Fung, Lai-kuen. "An Investigation of the stream water chemistry in a small drainage basin in Shek Kong, Hong Kong." Hong Kong : University of Hong Kong, 2000. http://sunzi.lib.hku.hk/hkuto/record.jsp?B22288077.

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25

Wellington, Brian Ishmael. "Controls on dissolved organic carbon at Hubbard Brook Experimental Forest and its effects on stream acid-base chemistry." Related electronic resource: Current Research at SU : database of SU dissertations, recent titles available full text, 2002. http://wwwlib.umi.com/cr/syr/main.

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26

Grant, Jane D. "The significance of groundwater-surface water interactions on hyporheic physico-chemistry and stream ecology in two Scottish mountain rivers." Thesis, Available from the University of Aberdeen Library and Historic Collections Digital Resources. Online version available for University members only until Apr. 7, 2010, 2008. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?application=DIGITOOL-3&owner=resourcediscovery&custom_att_2=simple_viewer&pid=26046.

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27

Crandall, Trevor William. "Wildfire in the West: How Megafires and Storm Events Affect Stream Chemistry and Nutrient Dynamics in Semi-Arid Watersheds." BYU ScholarsArchive, 2020. https://scholarsarchive.byu.edu/etd/8886.

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Climate change is causing larger wildfires and more extreme precipitation events throughout the world. As these ecological disturbances increasingly coincide, they are altering lateral fluxes of sediment, organic matter, and nutrients. Increased lateral flux of nutrients could exacerbate eutrophication and associated harmful algal blooms, and increased sediment and organic matter flux could degrade the water supply. Here, we report the immediate stream chemistry response of watersheds in central Utah (USA) that were affected by a megafire followed by an extreme precipitation event in 2018. The

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28

Chorover, Jon, Louis A. Derry, and William H. McDowell. "Concentration-Discharge Relations in the Critical Zone: Implications for Resolving Critical Zone Structure, Function, and Evolution." AMER GEOPHYSICAL UNION, 2017. http://hdl.handle.net/10150/626479.

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Critical zone science seeks to develop mechanistic theories that describe critical zone structure, function, and long-term evolution. One postulate is that hydrogeochemical controls on critical zone evolution can be inferred from solute discharges measured down-gradient of reactive flow paths. These flow paths have variable lengths, interfacial compositions, and residence times, and their mixing is reflected in concentration-discharge (C-Q) relations. Motivation for this special section originates from a U.S. Critical Zone Observatories workshop that was held at the University of New Hampshire

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29

Söderlund, Erik. "Snowmelt flushing of dissolved organic carbon (DOC) from urban boreal streams : A study of stream chemistry in Degernäsbäcken and Röbäcken." Thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-163172.

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In boreal landscapes, large quantities of dissolved organic carbon (DOC) accumulated in soils are flushed into rivers and streams during snowmelt. These inputs supply energy to aquatic microbes, affect pH, and can promote the transportation of metals to streams and rivers. However, during the spring flood, changes in stream DOC are influenced by the structure of the catchment (e.g., forest vs. wetland cover), where different solutes are stored in soils, and snowmelt hydrology. While these mechanisms have been studied extensively in ‘pristine’ boreal landscapes, the influence of agricultural an

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30

Norström, Sara H. "Soil and stream water chemistry in a boreal catchment - interactions, influences of dissolved organic matter and effects of wood ash application." Doctoral thesis, Mittuniversitetet, Institutionen för naturvetenskap, teknik och matematik, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-12998.

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Two small bordering catchments in Bispgården, Central Sweden, wereinvestigated in regard to soil solution and stream water chemistry during the frostfree seasons of 2003-2007. Both catchments were drained by first order streams,Fanbergsbäcken and Gråbergsbäcken, and in Fanbergsbäckens catchment anextensive investigation of the soil and soil solution chemistry was conducted bylysimeter and centrifugation sampling. The area of intensive soil solutioninvestigation was situated in a slope towards a stream incorporating a rechargearea, with podzolic soil, and a discharge area close to the stream wi

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31

Shaw, Meaghan Elizabeth. "Concentration-discharge behavior of contaminants in a stream impacted by acid mine drainage." Kent State University / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=kent1529320351379744.

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32

Schleich, Katharine L. "Geochemical Modeling of Processes Affecting Water and Sediment Chemistry and their Relationship to Biological Recovery in an Acid Mine Drainage Remediated Stream." Ohio University / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1399477158.

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33

Oteng-Attakora, George. "Mechanisms of heat and mass transfer to and from single drops freely-suspended in an air stream." Thesis, Aston University, 1995. http://publications.aston.ac.uk/9686/.

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A specially-designed vertical wind tunnel was used to freely suspend individual liquid drops of 5 mm initial diameter to investigate drop dynamics, terminal velocity and heat and mass transfer rates. Droplets of distilled, de-ionised water, n-propanol, iso-butanol, monoethanolamine and heptane were studied over a temperature range of 50oC to 82oC. The effects of substances that may provide drop surface rigidity (e.g. surface active agents, binders and polymers) on mass transfer rates were investigated by doping distilled de-ionised water drops with sodium di-octyl sulfo-succinate surfactant. M

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34

Diehl, Melinda S. "Using Stream Chemistry to Evaluate Experimental Acidification and Natural Recovery in the Paired Catchments at the Bear Brook Watershed in Maine (1989-2003)." Fogler Library, University of Maine, 2006. http://www.library.umaine.edu/theses/pdf/DiehlMS2006.pdf.

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35

Haught, Samantha. "Significance of the hyporheic zone and runoff on the water chemistry of the stream water in a small tributary of the Olentangy River." The Ohio State University, 2003. http://rave.ohiolink.edu/etdc/view?acc_num=osu1413360067.

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36

Schweitzer, Na'ama. "Greening the Streets: A Comparison of Sustainable Stormwater Management in Portland, Oregon and Los Angeles, California." Scholarship @ Claremont, 2013. http://scholarship.claremont.edu/pomona_theses/85.

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Stormwater runoff is one of the main sources of pollution for urban waterways. Stormwater has traditionally been managed through concrete-based storm drainage systems, but the past twenty years have introduced an alternative in the form of green infrastructure. Green infrastructure for stormwater management involves the use of low impact development (LID), often vegetated facilities to mimic natural hydrologic systems that capture and allow infiltration of rainwater where it falls and from impervious surfaces upstream, before entering the drainage system. Portland, Oregon and Los Angeles, Cali

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37

Berg, Ivan. "Headwaters and forestry : Effect of riparian buffers on stream physiochemical properties." Thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-163017.

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Forest management practices usually preserves riparian buffers along watercourses in order to protect stream water from physical, chemical and ecological changes caused by clear-cutting. The purpose of this thesis was to investigate whether there is a relationship between the size of the riparian buffer zone along small streams, i.e., headwaters, and a number of physical and chemical attributes of these streams. Twelve headwaters in the Västerbotten county and twelve in Jönköpings county were investigated. These headwaters had a range of buffer widths from “No buffer” (no trees left), Thin buf

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38

Butler, Steven Kyle. "An Introductory Study of Solid Materials for Capture and Catalysis of Waste Stream Chemicals." BYU ScholarsArchive, 2018. https://scholarsarchive.byu.edu/etd/6845.

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Heterogeneous catalysts are key materials in research and industry. Herein we study two materials in different stages of development toward being applied as heterogeneous catalysts. First, MoO3SnO2 was synthesized and studied as a catalytic system similar to Sn-beta zeolites. While the Mo-based catalyst did not show similar activity to Sn-beta, it did show interesting reactivity in activating carbonyls and oxidizing organic substrates. Second, a method was developed for grafting amines onto carboxylic acid functionalized carbon nanotubes for CO2 capture. The method was successful for grafting

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39

Linda, Engström. "Effects of forestry on stream water chemistry during autumn : A before and after comparison between a reference and two streams with clear-cut watershed areas." Thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-83124.

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Forestry is a large-scale business in many countries, and in northern Sweden a large portion of the Boreal forests is cut. Yet very few studies have investigated the impacts of forestry on the vast number of receiving stream waters. This study has therefore investigated the impacts of forestry, through clear-cutting, on stream water chemistry during autumn conditions in northern Sweden. The study compares the parameters water height, absorbance, dissolved organic carbon, total dissolved nitrogen and total phosphorus in two inlet streams in recently deforested sites, <1 year ago, and an undi

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40

Stenlund, Emma. "Effects of land use on northern boreal streams : a study of stream nutrient patterns in Röbäcksdalen, Umeå." Thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-171876.

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Nutrient loading to aquatic and marine ecosystems is a topic of interest, especially as the human population continues to grow and land use changes. Here, I examined the seasonal variability and relative amounts of different forms of nitrogen (N) and phosphorous (P) from four sites at Röbäcksdalen (Umeå, Västerbotten), an area influenced by both agriculture and partial urbanization. In addition, I studied how nutrient concentration varied with discharge during snowmelt. Overall, the results show that the seasonality of nutrient concentration did not differ drastically from what is expected in

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41

Carter, Shaun A. "Geochemical analysis of the Powder River, Wyoming/Montana and an assessment of the impacts of coalbed natural gas co-produced water." Laramie, Wyo. : University of Wyoming, 2008. http://proquest.umi.com/pqdweb?did=1663116711&sid=1&Fmt=2&clientId=18949&RQT=309&VName=PQD.

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42

Risley, Elizabeth Ellen. "Relationships among land use, geomorphology, local habitat and aquatic macroinvertebrate assemblages in agricultural headwater stream systems." Connect to resource, 2006. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1225828275.

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43

Klaus, Jaclyn Elizabeth. "In situ measurement of mercury ecotoxicological effects on stream periphyton in southwest Ohio." Wright State University / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=wright1409918494.

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44

Slye, Jaime L. "Relationships of Benthic Macroinvertebrate Community Structure with Land-use, Habitat, In-stream Water Chemistry, Depositional Sediment Biofilm Fatty Acids, and Surfactants in the Effluent Dominated Texas Trinity River." Thesis, University of North Texas, 2013. https://digital.library.unt.edu/ark:/67531/metadc407738/.

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The Trinity River is an urbanized, effluent-dominated river, and is heavily relied upon for drinking water. The benthic macroinvertebrate community has been monitored for over 20 years, with the focus of this dissertation on three studies (1987-88, 2005, and 2011). Water quality improvement following dechlorination resulted in increased benthic metrics. Overall habitat quality, in-stream cover, surface water total organic carbon, sediment total organic carbon, near-field urban land-use, near-field forested land-use, surface water surfactant toxic units, and depositional sediment biofilm fat

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45

Porter, Courtney. "Solute Inputs to Soil and Stream Waters in a Seasonally Snow-Covered Mountain Catchment Determined Using Ge/Si, ⁸⁷SR/⁸⁶SR and Major Ion Chemistry: Valles Caldera, New Mexico." Thesis, The University of Arizona, 2012. http://hdl.handle.net/10150/265377.

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Weathering releases lithogenic elements to soil and stream waters that support life in catchment ecosystems. Seasonal and inter-annual variations in hydrologic conditions change subsurface flowpaths, modifying the influence of weathering on stream waters. This study, over two climatically variable years, determined seasonal and inter-annual changes in solute sources to streams using a multi-tracer approach including major cations, strontium isotopes, germanium (Ge)/silica ratios, carbon species, and trace metals. Stream water cations display constant concentrations although discharge response

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46

Miedema, Natalie Margaret. "Non-anthropogenic sources of carbon dioxide in the Glowworm Cave, Waitomo." The University of Waikato, 2009. http://hdl.handle.net/10289/2781.

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The Waitomo Caves attract approximately 500 000 tourists each year. A requirement of tourist cave management is that the partial pressure of carbon dioxide (PCO₂) is kept below levels that are: hazardous to the health of visitors, hazardous to the glowworms and other natural inhabitants, or potentially corrosive to speleothems. For the Glowworm Cave at Waitomo, the maximum permissible PCO₂ level is 2400 ppm. When exceeded, the tourist operators are required to close the cave. Ten years of monitoring data at the Glowworm Cave was analysed. Most of the variation in PCO₂ could be attributed to CO

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47

Baumann, Elise, and Hanna Berglund. "Dynamics of streamflow and stream chemistry in a Swiss pre-Alpine headwater catchment : A fine scale investigation of flow occurrence and electrical conductivity in the temporary streams in the lower Studibach catchment." Thesis, Uppsala universitet, Luft-, vatten- och landskapslära, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-434637.

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Temporary streams and their dynamics have often been largely overseen in hydrological research and there is relatively little knowledge about how the occurrence of flow in these streams varies temporally and spatially. Temporary streams are important from a hydro- logical perspective because they affect water quantity and quality in downstream peren- nial reaches, and from an ecological perspective because they provide habitat to unique species. In order to gain knowledge about these important streams, this maser thesis was conducted, within the Msc program in Water and Environmental Engineeri

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48

Yazbek, Lindsey Danese. "Hydrogeochemical Factors Influencing Metal Transport and Transformation in a Stream Impaired by Acid Mine Drainage." Kent State University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=kent1564478839556002.

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49

Temnerud, Johan. "Spatial Variation of Dissolved Organic Carbon along Streams in Swedish Boreal Catchments." Doctoral thesis, Örebro University, Institutionen för naturvetenskap Department of Natural Sciences, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-116.

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<p>Denna avhandling behandlar den småskaliga rumsliga variationen av löst organiskt kol (DOC, engelsk term: dissolved organic carbon), dess koncentration, masstransport och karaktär, i bäckar inom två barrskogsbeklädda avrinningsområden (delavrinningsområden 0,01-78 km²). Provtagningen gjordes uppströms och nedströms varje bäckförgrening under sommarbasflöde. Koncentrationen av DOC varierade inom en tiopotens (4-66 mg/l), liksom flera andra kemiska parametrar. Vid riksinventeringen av vattendrag för 2000 i norra Sverige noterades en snarlik spännvidd. Enligt Naturvårdverkets bedömningsgrunder

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50

Myrstener, Maria. "Konduktivitet i vattendrag som indikator på sura sulfatjordar." Thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-61632.

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Increasing attention is being given to acid sulphate soils wherever they occur. The problems that leaching sulphate soils gives with significant lowerings of pH and mobilization of heavy metals influence large spectra of our society from fisheries to agriculture to construction. Mapping these soils is consequently of great importance and the methods of doing this is very much lacking in function and precision. This study was therefore carried out to investigate whether conductivity in running water can be used as a simple instrument to identify acid sulphate soils in the catchment. 31 coastal

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