Special Issue "Urbanization and Environmental Contaminants"

A special issue of Nitrogen (ISSN 2504-3129).

Deadline for manuscript submissions: closed (15 May 2021).

Special Issue Editors

Prof. Dr. Stephen Macko
E-Mail Website
Guest Editor
Department of Environmental Sciences, University of Virginia, Charlottesville, VA 22903, USA
Interests: fossil materials; ocean cycling of nitrogen; abiotic synthesis; stable isotope analysis; denitrification; nitrification; nitrogen pollution; oceanic dead zones
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Stephen MacAvoy
E-Mail Website
Guest Editor
Department of Environmental Sciences, American University, Washington, USA
Interests: urban geochemistry; isotope geochemistry; nutrient pollution

Special Issue Information

Dear Colleagues,

Human populations are increasingly concentrated in urban areas, and by 2050, 70% of the world's population will live in cities (UN-Habitat). As the urban population grows, increases in impervious surfaces, combined-flow sewers, and non-point source contaminants put water resources at risk. These include changes in the discharge of potential carcinogens, elevated organic/inorganic nutrients, and weathering products from roads and buildings. Urban surface waters present unique challenges to mitigation efforts. Both rivers and small urban lakes are likely to suffer similar non-point source contamination. Faced with these challenges, municipalities have increasingly become interested in reclaiming waterways by introducing "green" technologies or adaptations aimed at improving water quality. Identifying the sources, effects, and solutions to the complex issues facing urban surface waters requires a cadre of scientists, managers, and community activists to conceive and implement solutions.

In this Special Issue, we welcome submissions focusing on both the changing water quality and biogeochemistry of urban surface waters, as well as efforts to reduce adverse impacts on these systems.

We would encourage submissions from presenters at AGU (December 2020) as well others with related research.

Prof. Stephen Macko
Prof. Stephen MacAvoy
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Nitrogen is an international peer-reviewed open access quarterly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1000 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Published Papers (1 paper)

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Research

Article
Pollution Reduction in Throughflow from Vegetated and Non-Vegetated, Foam-Based Surfaces and Green Roofs
Nitrogen 2020, 1(1), 21-33; https://0-doi-org.brum.beds.ac.uk/10.3390/nitrogen1010004 - 05 Aug 2018
Viewed by 1814
Abstract
The ability of foam-based unplanted and green surfaces (Aqualok™) to remove pollutants (total suspended solids (TSS), NO3, NH4, total organic carbon (TOC) and total phosphorus (TP)) from direct precipitation and roof runoff passing through the surfaces was assessed. The [...] Read more.
The ability of foam-based unplanted and green surfaces (Aqualok™) to remove pollutants (total suspended solids (TSS), NO3, NH4, total organic carbon (TOC) and total phosphorus (TP)) from direct precipitation and roof runoff passing through the surfaces was assessed. The assessments were conducted using unplanted Aqualok™ and planted Aqualok™ roof panels and a bioswale Aqualok™ installed on two Fire and Emergency Medical Service Stations (FEMSs) in Washington, D.C., USA. During a three-year period, impacts on water chemistry were evaluated by examining overall averages as well as performance over time. Upon installation, all Aqualok™ surfaces released a “pulse” of TSS and NO3, which decreased over time. TP concentrations from the planted panels were elevated relative to conventional roof runoff throughout the study. TOC was generally higher for planted Aqualok™ compared to unplanted Aqualok™, and did not decrease over time. Excluding the three months post-installation, TSS in throughflow from planted and unplanted Aqualok™ surfaces was 88% and 90% lower, respectively, than in runoff from a conventional tar and gravel roof. No significant differences between green surface throughflow and conventional roof runoff for NO3 or NH4 were observed. Full article
(This article belongs to the Special Issue Urbanization and Environmental Contaminants)
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