2.
AIR QUAILITY MONITORING
2.1
Monitoring Locations
2.1.1
The
air quality monitoring works for the Contract are covered by Contract No. HY/2013/04
¡§Hong Kong-Zhuhai-Macao-Bridge HKBCF ¡V Infrastructure Works Stage II (Southern
Portion)¡¨ and Contract No. HY/2011/03 ¡§Hong Kong-Zhuhai-Macao Bridge Hong Kong
Link Road ¡V Section between Scenic Hill and HKBCF¡¨. The ET of the Contract or
another ET of the HZMB project is required to conduct impact air quality
monitoring at AMS2, AMS3C, AMS6 and AMS7B as part of EM&A programme if
these air quality monitoring stations are no longer covered under Contract No. HY/2013/04
and HY/2011/03. Figure 1 shows the
locations of air monitoring stations.
Table 2.1 Air Quality Monitoring Location
Air Monitoring Station |
Location |
AMS2 |
Thung Chung Development Pier |
AMS3C |
Ying Tung Estate Market Rooftop |
AMS6 |
Dragonair/CNAC
(Group) Building (A80) |
3RS Site Offices |
2.2
Monitoring Requirements
2.2.1
The
monitoring requirements, equipment, parameters, frequency and duration,
methodology, schedule, and meteorological information are described in the
monthly EM&A Reports prepared for Contract No. HY/2013/04 and HY/2011/03.
2.2.2
The
Action and Limit levels for 1-hr TSP and 24-hr TSP are summarized in Table 2.2.
Table
2.2 Action and Limit Levels for Air Quality
Monitoring Station |
Action Level (µg/m³) |
Limit Level (µg/m³) |
1 hour TSP |
||
AMS2 |
374 |
500 |
AMS3C |
368 |
|
AMS6 |
360 |
|
AMS7B |
370 |
|
24 hours TSP |
||
AMS2 |
176 |
260 |
AMS3C |
167 |
|
AMS6 |
173 |
|
AMS7B |
183 |
2.2.3
The
event and action plan is provided in Appendix
C.
2.2.4
If
exceedance(s) at these stations is/are recorded by the ET of the Contract or
referred by the other ET under the HZMB project to the Contract, the ET of the
Contract will carry out an investigation and findings will be reported in the
monthly EM&A Report.
2.3
Monitoring Results
2.3.1
The
monitoring results for AMS2, AMS6 and AMS3C and AMS7B are reported in the
monthly EM&A Reports prepared for Contract No. HY/2011/03 and HY/2013/04
respectively for the reporting month.
2.3.2
Summary
of Action and Limit Level exceedance of 1-hr TSP level and 24-hr TSP level at AMS6
shall be referred to the monthly EM&A report prepared by Contract No.
HY/2011/03.
2.3.3
There
was no Action and Limit Level exceedances of 1-hr TSP level and 24-hr TSP level
recorded at station AMS2, AMS3C and AMS7B as referred to the Environmental Team
of Contract No. HY/2013/04 during the reporting period.