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Sunday, July 26, 2020 | History

3 edition of Atmospherically derived organic films on impervious surfaces found in the catalog.

Atmospherically derived organic films on impervious surfaces

Atmospherically derived organic films on impervious surfaces

detection and characterization.

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  • 9 Currently reading

Published by National Library of Canada in Ottawa .
Written in English


Edition Notes

Thesis (M.Sc.) -- University of Toronto, 1999.

SeriesCanadian theses = -- Thèses canadiennes
The Physical Object
FormatMicroform
Pagination2 microfiches : negative. --
ID Numbers
Open LibraryOL20739589M
ISBN 10061246010X

This book gives a state-of-the-art survey of ellipsometric investigations of organic films and surfaces, from laboratory to synchrotron applications, with a special focus on in-situ use in processing environments and at solid-liquid interfaces. In conjunction with the development of functional organic, meta- and hybrid materials for new optical Format: Hardcover.   Engineering Data Module Beta. Cancel. This is a comprehensive volume on analytical techniques used in materials science for the characterization of surfaces, interfaces and thin films. This flagship volume is a unique, stand-alone reference for materials science practitioners, process engineers, students and anyone with a need to know about.

Keywords Urban impervious surfaces Land surface temperatures Urban heat islands Urban landscape sustainability China Introduction The world has been urbanizing at an unprecedented rate sincethe s,with morethan 53 %ofthe global population now living in urban areas (Liu et al. ; Wu et al. ). Consequently, the global area ofFile Size: 1MB. Impervious surface area calculations are required per Section of the Oconto County Shoreland Protection Ordinance. The impervious surface standards apply to the construction, reconstruction, expansion, replacement or relocation of ANY impervious surface that is located within feet of the.

Many of the threats posed to Long Island Sound are directly or indirectly the result of the urbanization of the watershed, particularly with the increase of impervious surfaces. Impervious surfaces such as asphalt, concrete and rooftops prevent percolation of water into the soil, creating a negative impact on water quantity and water quality.   The only way to have not noticed a development boom in Washington, D.C., is if you were living at the bottom of the Potomac we can actually see the huge spread of .


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Atmospherically derived organic films on impervious surfaces Download PDF EPUB FB2

Atmospherically Derived Organic Films on Impervious Surfaces: Detection and Characterization Master of Science Sarah Elizabeth Gingrich Deparmient of Geography, University of Toronto ABSTRACT The hypothesis that organic films exist on irnpe~ous surfaces was Cited by: 2.

Atmospherically derived organic films have been found on an impervious surface along an urban-rural gradient in the Toronto, Ontario, Canada area. Film thickness and concentrations, expressed on an aerial basis, of ∑n-alkanes, ∑PCB, ∑PAH, and ∑OC (organochlorine) pesticides decrease along this gradient, coincident with lower atmospheric emissions (PCB and PAH) and less accumulation in Cited by: Atmospherically derived organic films have been found on an impervious surface along an urban-rural gradient in the Toronto, Ontario, Canada area.

Gingrich SE () Atmospherically derived organic films on impervious surfaces: detection and characterization. Masters Thesis, Department of Geography, University of Toronto, p Gimeno P, Thomas S, Bousquet C, Maggio A-F, Civade C, Brenier C, Bonnet P-A () Identification and quantification of 14 phthalates and 5 non-phthalate Author: Yuyan Liu, Yongxin Yu, Fangfang Tian, Yaxing Shen, Cheng Liu, Haofeng Liu, Zhizhong Zhao.

A novel environmentally derived mixture that integrates exposure to atmospherically derived gas- and particle-phase compounds in urban areas—namely, the organic film that develops as a thin layer on urban impervious surfaces—was investigated for its ability to induce gene expression via the aryl hydrocarbon receptor (AhR).

The organic film on window glass from 21 sites in downtown Toronto Cited by: Environmental effects. Impervious surfaces are an environmental concern because, with their construction, a chain of events is initiated that modifies urban air and water resources.

The pavement materials seal the soil surface, eliminating rainwater infiltration and natural groundwater a recent article in the Seattle Times: "While urban areas cover only 3 percent of the U.S. disconnection, whereby rooftops and/or on-lot residential impervious surfaces are directed to pervious areas or conservation areas, and (2) disconnection leading to an alternative runoff reduction practice(s) adjacent to the roof (see Figure ).

Alternative practices can use lessFile Size: KB. Surface films on impervious surfaces mediate the fate of organic contaminants in urban areas. Using sheltered 3-mm diameter glass beads as a surrogate impervious urban surface, studies in downtown.

The rapid expansion of impervious surface areas (ISA) threatens soil organic carbon (SOC) pools in urbanized areas globally. The paucity of field observations on Cited by: influenced by the presence of impervious surfaces in two ways.

First, runoff increases erosion resulting in more soil being washed into the water, making it cloudy. Second, runoff from impervious surfaces carries additional phosphorus to the water.

An unfertilized, developed waterfront lot that has 20% impervious surface carries six. buildings and paved surfaces (asphalt, concrete), roads, parking lots are called impervious surfaces.

Increasing urbanization and pressure of population stimulates the growth of impervious surfaces in the cities. Tremendous increase in impervious surfaces has far reaching effects on the landscape and environment of the Size: KB.

The relationship between building characteristics and the chemical composition of surface Dry deposition of airborne pollutants onto exposed impervious surfaces is a well-known and concluded that the rates of metal accumulation are up to 50 times greater on glass windows that are subject to atmospherically derived films than those Cited by:   Purchase Organic Thin Films and Surfaces: Directions for The Nineties, Volume 20 - 1st Edition.

Print Book & E-Book. ISBNBook Edition: 1. to provide data on impervious surfaces and turf grass as inputs to the calibration of the Chesapeake Bay Program’s Phase (P) WSM used to establish the Chesapeake Bay TMDL (USEPA, a, b). Landsat-derived land-cover data, however, have known limitations representing impervious surfaces associated with low-density residential development.

Constructed surfaces that are impenetrable by water. Impervious surfaces can lead to excessive stormwater runoff and limit the amount of stormwater that remains onsite or recharges local aquifers. Pervious or porous surfaces allow some water infiltration, thereby reducing runoff.

Installation of impervious surfaces in urban areas has attracted increasing attention due to its potential hazard to urban ecosystems. Urban soils are suggested to have robust carbon (C) sequestration capacity; however, the C stocks and dynamics in the soils covered by impervious surfaces that dominate urban areas are still not well by: Impervious Surface Summary What is impervious surface.

An area that releases as runoff all or a majority of the precipitation that falls on it. Examples include, rooftops, driveways, patios, decks, sidewalks, swimming pools. Why are impervious surface regulations being proposed. Stormwater, Impervious Surface, and Stream Health.

Urban development is associated with an increase in impervious surfaces, that is, surfaces such as rooftops, sidewalks, and streets that prevent precipitation from infiltrating into the groundwater. A large proportion of impervious surface accelerates the runoff rate and produces shorter times of concentration or lag times as well as an increased peak flow and runoff volume; however, the proximity of impervious surfaces to a drainage system plays a significant role.

Impervious surfaces and storm sewers also reduce the amount of time it takes stormwater runoff to reach receiving streams. This time, known as lag time, is the period between peak rainfall and peak stream discharge (Goudie ).

Smooth, paved surfaces provide less frictional resistance to overland flow than do vegetated surfaces. Nanostructured films of organic semiconductors are now shown to enhance the Raman signal of probe molecules, paving the way to the realization of Cited by: 6.Impervious Surface Growth Model.

Stormwater runoff is a major contributor to water pollution. 1 When rainwater washes over impervious surfaces such as rooftops, parking lots, and roads, it collects and carries pollutants that ultimately flow into waterways.

Smart growth strategies can help to reduce the impact of new development on stormwater.Writing for graduate students, academic researchers, planners, conservationists and policy makers, and with the use of informative urban-region color maps, Richard Forman analyzes 38 urban regions from 32 nations, including London, Chicago, Ottawa, Brasilia, Cairo, Seoul, Bangkok, Canberra, and a major case study of the Greater Barcelona by: