No.8

Introduction
Data Policy
Data
Documentation
Contact Information



Hok Tsui

-O3-

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Station Contact Person(s) Observation Data and Quick Plot

Observation
Category : Air sampling observation
Situation :
Time zone : Local time +8


Sampling
Sampling height :
Description : continuous
Sampling and analysis frequency : Hourly
Sampling environment :
Description for sampling analysis : Real time point analyzer. The sampling line is 1/4" teflon tube. The sampling inlet is mounted on a scaffolding placed at 2m above roof top. Zeroed once 24 hours. The analyzer is span checked using Model 111 ozone source once every 24 hours. Multipoint checked once a few months using TECO model 49PS ozone calibrator.


Instrument and Analysis
Measurement method :
Current status and history of instrument : UV Absorption
Description of instrument : TECO
Model 49


Calibration
Current scale employed in the measurement :
Measurement calibration : Zeroed once 24 hours. The analyzer is span checked using Model 111 ozone source once every 24 hours. Multipoint checked once a few months using TECO model 49PS ozone calibrator.
Scale and calibration(treasability) : 0 to 1000 ppb


Data Processing
Measurement unit : ppb
Data processing :
Processing for averaging :

Data flag :
Data remarks :


Other Information
Scientific aim :
Reference :


submitted by The Hong Kong Polytechnic University

The WDCGG is operated by the Japan Meteorological Agency
in collaboration with the World Meteorological Organization