Next Article in Journal
The Design and Development of an Omni-Directional Mobile Robot Oriented to an Intelligent Manufacturing System
Next Article in Special Issue
CleAir Monitoring System for Particulate Matter: A Case in the Napoleonic Museum in Rome
Previous Article in Journal
Single Wall Carbon Nanotubes Based Cryogenic Temperature Sensor Platforms
Previous Article in Special Issue
Tapered Optical Fiber Functionalized with Palladium Nanoparticles by Drop Casting and Laser Radiation for H2 and Volatile Organic Compounds Sensing Purposes
Article Menu
Issue 9 (September) cover image

Export Article

Open AccessArticle
Sensors 2017, 17(9), 2072; doi:10.3390/s17092072

Quantifying Neighborhood-Scale Spatial Variations of Ozone at Open Space and Urban Sites in Boulder, Colorado Using Low-Cost Sensor Technology

1
Department of Mechanical Engineering, University of Colorado Boulder, Boulder 80309, CO, USA
2
SOARS Program, UCAR, Boulder 80301, CO, USA
*
Author to whom correspondence should be addressed.
Received: 7 August 2017 / Revised: 30 August 2017 / Accepted: 7 September 2017 / Published: 10 September 2017
(This article belongs to the Special Issue Air Pollution Sensors: A New Class of Tools to Measure Air Quality)
View Full-Text   |   Download PDF [2385 KB, uploaded 12 September 2017]   |  

Abstract

Recent advances in air pollution sensors have led to a new wave of low-cost measurement systems that can be deployed in dense networks to capture small-scale spatio-temporal variations in ozone, a pollutant known to cause negative human health impacts. This study deployed a network of seven low-cost ozone metal oxide sensor systems (UPods) in both an open space and an urban location in Boulder, Colorado during June and July of 2015, to quantify ozone variations on spatial scales ranging from 12 m between UPods to 6.7 km between open space and urban measurement sites with a measurement uncertainty of ~5 ppb. The results showed spatial variability of ozone at both deployment sites, with the largest differences between UPod measurements occurring during the afternoons. The peak median hourly difference between UPods was 6 ppb at 1:00 p.m. at the open space site, and 11 ppb at 4:00 p.m. at the urban site. Overall, the urban ozone measurements were higher than in the open space measurements. This study evaluates the effectiveness of using low-cost sensors to capture microscale spatial and temporal variation of ozone; additionally, it highlights the importance of field calibrations and measurement uncertainty quantification when deploying low-cost sensors. View Full-Text
Keywords: ozone; spatial variability; air pollution; exposure science; low-cost sensors ozone; spatial variability; air pollution; exposure science; low-cost sensors
Figures

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Supplementary material

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Cheadle, L.; Deanes, L.; Sadighi, K.; Gordon Casey, J.; Collier-Oxandale, A.; Hannigan, M. Quantifying Neighborhood-Scale Spatial Variations of Ozone at Open Space and Urban Sites in Boulder, Colorado Using Low-Cost Sensor Technology. Sensors 2017, 17, 2072.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top