Journal of Sensors / 2016 / Article / Fig 10

Research Article

Citizen Sensing for Improved Urban Environmental Monitoring

Figure 10

Roughly the same period of the informal sensor measurement (without calibration, 1 ppb = 1.91 μg/m3 is used for the conversion) every minute (11:37–13:36) and the hourly official measurement in dashed line (11:00–14:00) at Amsterdam-Stadhouderskade.

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