نتایج جستجو برای: pollution mapping

تعداد نتایج: 267410  

2018
M. Tholkappian R. Ravisankar A. Chandrasekaran J. Prince Prakash Jebakumar K.V. Kanagasabapathy M.V.R. Prasad K.K. Satapathy

The concentration of some heavy metals: Al, Ca, K, Fe, Ti, Mg, Mn, V, Cr, Zn, Ni and Co in sediments from Pulicat Lake to Vadanemmeli along Chennai Coast, Tamil Nadu has been determined using EDXRF technique. The mean concentrations of Mg, Al, K, Ca, Ti, Fe, V, Cr, Mn, Co, Ni, and Zn were found to be 1918, 25436, 9832, 9859, 2109, 8209, 41.58, 34.14, 160.80, 2.85. 18.79 and 29.12 mg kg-1 respec...

2014
J. J. Huck J. D. Whyatt P. Coulton A. Gradinar Jonny Huck

The purpose of this paper is to apply recent developments in the areas of the ‘Quantified Self’ and the ‘Internet of Things’ in order to explore the use of low-cost sensors for the collection of a variety of spatially-referenced biometric and environmental data from participants. This is achieved using a specially designed application on the Android mobile platform, which has been developed for...

Journal: :Spatial and spatio-temporal epidemiology 2016
John L Pearce Lance A Waller Stefanie E Sarnat Howard H Chang Mitch Klein James A Mulholland Paige E Tolbert

BACKGROUND Exposure metrics that identify spatial contrasts in multipollutant air quality are needed to better understand multipollutant geographies and health effects from air pollution. Our aim is to improve understanding of: (1) long-term spatial distributions of multiple pollutants; and (2) demographic characteristics of populations residing within areas of differing air quality. METHODS ...

Abolghasem Mirhosseini Dehabadi , Elham Ehsani , Mohammad Hassan Ehrampoush ,

Introduction: Soil has an important role in nutrient cycle and an important function in storage, refinement, and movement of nutrients for the living and non-living parts. Soil pollution of heavy metals and elements is one of the common pollution impacts of human activities, especially industry. Realization of distribution pattern of these elements and their anthropogenic sources is a major par...

2015
Robert A. Rohde Richard A. Muller Aijun Ding

China has recently made available hourly air pollution data from over 1500 sites, including airborne particulate matter (PM), SO2, NO2, and O3. We apply Kriging interpolation to four months of data to derive pollution maps for eastern China. Consistent with prior findings, the greatest pollution occurs in the east, but significant levels are widespread across northern and central China and are ...

Journal: :Documents d'anàlisi geogràfica 2021

Ahamer, Gilbert (2019)Mapping Global Dynamics, Geographic Perspectives from Local Pollution to EvolutionCham: Springer Nature, 457 p.ISBN 978-3-319-51704-9

Journal: :Environmental pollution 2002
Jeremy E Diem Andrew C Comrie

A limited number of sample points greatly reduces the availability of appropriate spatial interpolation methods. This is a common problem when one attempts to accurately predict air pollution levels across a metropolitan area. Using ground-level ozone concentrations in the Tucson, Arizona, region as an example, this paper discusses the above problem and its solution, which involves the use of l...

2014
Swatantra R. Kethireddy Paul B. Tchounwou Hafiz A. Ahmad Anjaneyulu Yerramilli John H. Young

Tropospheric ozone (O3) pollution is a major problem worldwide, including in the United States of America (USA), particularly during the summer months. Ozone oxidative capacity and its impact on human health have attracted the attention of the scientific community. In the USA, sparse spatial observations for O3 may not provide a reliable source of data over a geo-environmental region. Geostatis...

2015
R. Krishna J. Iqbal A. K. Gorai G. Pathak F. Tuluri P. B. Tchounwou

Groundwater pollution due to anthropogenic activities is one of the major environmental problems in urban and industrial areas. The present study demonstrates the integrated approach with GIS and DRASTIC model to derive a groundwater vulnerability to pollution map. The model considers the seven hydrogeological factors [Depth to water table (D), net recharge (R), aquifer media (A), soil media (S...

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