نتایج جستجو برای: urban transect

تعداد نتایج: 175005  

Journal: :Journal of the Air & Waste Management Association 2009
Mark D Gibson Mathew R Heal David H Bache Andrew S Hursthouse Iain J Beverland Susanne E Craig Colin F Clark Mike H Jackson Judith R Guernsey Chris Jones

Concurrent 24-hr samples of particulate matter of median aerodynamic diameter less than 10 microm (PM10) were collected over a 10-day period in August 2000 at four sites along a transect in west-central Scotland, UK (passing from the coast through the city of Glasgow) in line with the prevailing southwesterly wind. Each sample was analyzed for chloride (Cl(-)), nitrate (NO3(-)), sulfate (SO4(2-...

2009
Yetao Yang Qiming Zhou Jianya Gong

The gradient based landscape metrics analysis is now widely used to study the landscape pattern change in respond to urbanization. In order to discover the Beijing metropolitan area landscape pattern spatial and temporal change trends during the past 15 years, several landscape metrics are computed along a 96 km long transect crossing Beijing metropolitan area from west to east. Specially, the ...

Journal: :Environment international 2003
Katarzyna Sawicka-Kapusta Marta Zakrzewska Katarzyna Bajorek Joanna Gdula-Argasińska

The influence of Cracow's urban pollution on small forest ecosystems was studied during 1998-2000. Seven sites located at different distances from the Cracow conurbation and from busy road were selected. Two sites were situated 26 and 31 km from Cracow town along an eastern transect, the other five-3, 8, 14, 26 and 35 km respectively, from Cracow-along a southern transect. At the beginning of S...

Journal: :Water 2022

The Anacostia River in Washington, D.C. has been experiencing the challenges typical of urban rivers over last 70+ years. Here, we examine six years (2014 to 2020) base-flow geochemistry three tidal sites and suburban sites. Parameters examined include pH, hardness, SAR, alkalinity, TDS, Ca, Mg, Na, K, Fe, Mn, Zn, Al, As, B, Ba, Be, Cd, Cr, Cu, Co, Mo, Ni, Pb, total P, S, Sr, Ti, NO3−, NH4+. No...

Journal: :تحقیقات جغرافیایی 0
زهرا مختاری علیرضا سفیانیان سید جمال الدین خواجه الدین حمید رضا ضیایی

quantifying urban landscape is fundamental for monitoring and assessing ecological and socioeconomic consequences of urbanization. expansion of roads is a significant factor driving urban landscape change. the aim of this research is quantifying impacts of roads on isfahan city landscape. to achieve this aim, land use map of isfahan was created in 6 classes: urban, green spaces, agricultural, b...

2016
Mattia Manica Federico Filipponi Antonello D’Alessandro Alessia Screti Markus Neteler Roberto Rosà Angelo Solimini Alessandra della Torre Beniamino Caputo

Aedes albopictus is a tropical invasive species which in the last decades spread worldwide, also colonizing temperate regions of Europe and US, where it has become a public health concern due to its ability to transmit exotic arboviruses, as well as severe nuisance problems due to its aggressive daytime outdoor biting behaviour. While several studies have been carried out in order to predict th...

Journal: :Ambiente e Agua - An Interdisciplinary Journal of Applied Science 2018

Journal: :محیط زیست طبیعی 0
زینب نادری زاده دانشگاه صنعتی اصفهان شمس الله ایوبی دانشگاه صنعتی اصفهان حسین خادمی دانشگاه صنعتی اصقهان

this study was conducted to assess the concentration of some heavy metals and to examine their contamination hazard in atmospheric dust of urban, industrial and non-urban areas in bushehr province, southwestern iran. fifty dust samples from the leaves of the palm trees and fifty surface soil samples from bushehr and assaluyeh cities as urban and industrial areas, respectively, and also from the...

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