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PM10 Cnecentration Measurement From Internet
Protocol Camera
C. J. Wong
Universiti Sains Malaysia,
Malaysia
Email: wongcj@usm.my
This study presents a methodology for mapping particulate matter having a diameter less than 10- micron meter (PM10) using
remote sensing technique. The data used in this study was captured using an internet protocol (IP) camera digital camera.
This study provided information on air quality over USM campus area. In situ data were measured simultaneously with the
acquisition of IP camera data for algorithm regression analysis. The digital image was separated into three bands assigned as
red, green and blue for multispectral algorithm regression. The digital numbers were extracted corresponding to the
ground-truth locations for each band and then converted to radiance and reflectance values. The atmospheric reflectance
values was extracted from the satellite observation reflectance values subtrated by the amount given by the surface
reflectance. The atmospheric reflectance values were later used for PM10 mapping using the calibrated algorithm. The
algorithm produced a high correlation coefficient, R and low root-mean-square error, RMS, between the measured and estimated
air quality measurements. The preliminary results demonstrated that the IP digital camera imageries can be use for air
quality studies.
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