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High-resolution monitoring of atmospheric pollutants using a system of low-cost sensors
journal contribution
posted on 2014-07-01, 00:00 authored by Sutharshan RajasegararSutharshan Rajasegarar, T C Havens, S Karunasekera, C Leckie, J C Bezdek, M Jamriska, A Gunatilaka, A Skvortsov, M PalaniswamiIncreased levels of particulate matter (PM) in the atmosphere have contributed to an increase in mortality and morbidity in communities and are the main contributing factor for respiratory health problems in the population. Currently, PM concentrations are sparsely monitored; for instance, a region of over 2200 square kilometers surrounding Melbourne in Victoria, Australia, is monitored using ten sensor stations. This paper proposes to improve the estimation of PM concentration by complementing the existing high-precision but expensive PM devices with low-cost lower precision PM sensor nodes. Our evaluation reveals that local PM estimation accuracies improve with higher densities of low-precision sensor nodes. Our analysis examines the impact of the precision of the lost-cost sensors on the overall estimation accuracy.
History
Journal
IEEE transactions on geoscience and remote sensingVolume
52Issue
7Pagination
3823 - 3832Publisher
IEEELocation
Piscataway, N. J.Publisher DOI
ISSN
0196-2892Language
engPublication classification
C Journal article; C1.1 Refereed article in a scholarly journalCopyright notice
2014, IEEEUsage metrics
Categories
Keywords
Air pollutionBayesian maximum entropygeospatial analysiskrigingparticulate matterspatiotemporal estimationwireless sensor networksScience & TechnologyPhysical SciencesTechnologyGeochemistry & GeophysicsEngineering, Electrical & ElectronicRemote SensingImaging Science & Photographic TechnologyEngineeringANOMALY DETECTIONAIR-POLLUTIONPM10PERFORMANCEQUALITYGeophysics
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