نتایج جستجو برای: urban surface soil

تعداد نتایج: 958664  

2013
Jelena V. Kalinovic Snezana M. Serbula Ana A. Ilic Tanja S. Kalinovic Jelena Petrovic

In the municipality of Bor (Eastern Serbia), which is known for its production of copper from sulphide ores, soil was sampled in urban, rural and background area. The content of metals (Pb, Cu, Cd, Zn, Ni, Cr) and metalloids (As, Sb, Se, Te) in the soil was determined. The highest concentrations of the analyzed elements and frequent exceedance of the limit values were observed in soil samples f...

Journal: :Environmental pollution 2014
Rebecca G Mitchell Henry M Spliethoff Lisa N Ribaudo Donna M Lopp Hannah A Shayler Lydia G Marquez-Bravo Veronique T Lambert Gretchen S Ferenz Jonathan M Russell-Anelli Edie B Stone Murray B McBride

Urban gardens provide affordable fresh produce to communities with limited access to healthy food but may also increase exposure to lead (Pb) and other soil contaminants. Metals analysis of 564 soil samples from 54 New York City (NYC) community gardens found at least one sample exceeding health-based guidance values in 70% of gardens. However, most samples (78%) did not exceed guidance values, ...

2016
H. C. Ward S. Kotthaus L. Järvi C.S.B. Grimmond

pen access BY license s/by/4.0/). London and a residential suburban site in Swindon. Eddy cova servations of the turbulent fluxes are used to assess model pe over a two-year period (2011−2013). The distinct characteri sites mean their surface energy exchanges differ conside model suggests the largest differences can be attributed cover (notably the proportion of vegetated versus imperv and the ...

2017
Chai Fung Pui Lesley Maurice Bilung Kasing Apun Lela Su'ut

Various prevalence studies on Leptospira in animals and humans, as well as environmental samples, had been conducted worldwide, including Malaysia. However, limited studies have been documented on the presence of pathogenic, intermediate, and saprophytic Leptospira in selected animals and environments. This study was therefore conducted to detect Leptospira spp. in rats, soil, and water from ur...

2012
Jill L. Edmondson Zoe G. Davies Nicola McHugh Kevin J. Gaston Jonathan R. Leake

Urbanization is widely presumed to degrade ecosystem services, but empirical evidence is now challenging these assumptions. We report the first city-wide organic carbon (OC) budget for vegetation and soils, including under impervious surfaces. Urban soil OC storage was significantly greater than in regional agricultural land at equivalent soil depths, however there was no significant difference...

Ali Purghaumi Hossein Purghaumi Reza Jaafari Sayed Jamaledin Khagehedin

Soil organic matter has positive consequences eht rof quality and productivityof soil and also environment, agricultural and biological sustainability and conservation ofbiodiversity and soil. Organic matter plays an important role in the physical and chemicalprocesses of soil and thus, it is of a great effect on the spectral characteristics of soil. Thisstudy was done in order to develop the m...

Journal: :Environment international 2013
Sammy Zahran Howard W Mielke Shawn P McElmurry Gabriel M Filippelli Mark A S Laidlaw Mark P Taylor

Soil lead in urban neighborhoods is a known predictor of child blood lead levels. In this paper, we address the question where one ought to concentrate soil sample collection efforts to efficiently predict children at-risk for soil Pb exposure. Two extensive data sets are combined, including 5467 surface soil samples collected from 286 census tracts, and geo-referenced blood Pb data for 55,551 ...

2006
Katalin Szlavecz Sarah A. Placella Richard V. Pouyat Peter M. Groffman Csaba Csuzdi Ian Yesilonis

Invasive non-native earthworms in forested areas of the northeastern United States are of concern since they have the potential to greatly change the nutrient dynamics of these ecosystems. Urban landscapes are particularly susceptible to non-native species invasions. In this study, we assessed earthworm communities and nitrogen transformations rates in urban and rural forest patches of the Grea...

2016
P. Jish Prakash Georgiy Stenchikov Weichun Tao Tahir Yapici Bashir Warsama Johann P. Engelbrecht

Both Moderate Resolution Imaging Spectroradiometer (MODIS) and Spinning Enhanced Visible and InfraRed Imager (SEVIRI) satellite observations suggest that the narrow heterogeneous Red Sea coastal region is a frequent source of airborne dust that, because of its proximity, directly affects the Red Sea and coastal urban centers. The potential of soils to be suspended as airborne mineral dust depen...

2015

Beryllium is an extremely lightweight metal that occurs naturally in rocks, coal, soil, and volcanic dust. Commercially, bertrandite and beryl ore are mined for the recovery of beryllium. Because beryllium is one of the lightest metal and is very rigid, it has many uses in the electronics, aerospace, and defense industries. Beryllium is released into the atmosphere by windblown dust, volcanic p...

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