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/2013/01
“Hong Kong-Zhuhai-Macao-Bridge HKBCF – Passenger Clearance Building” and
Contract No. HY/2011/03 “Hong Kong-Zhuhai-Macao Bridge Hong Kong Link Road –
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,
AMS3B, AMS6 and AMS7B as part of EM&A programme if these air quality
monitoring stations are no longer covered under Contract No. HY/2013/01 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 |
|
AMS3B |
Site Boundary of Site Office Area at Works
Area WA2 |
|
AMS6 |
Dragonair/CNAC
(Group) Building (A80) |
|
AMS7B |
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/2013/01 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 |
|
AMS3B |
368 |
|
|
AMS6 |
360 |
|
|
AMS7B |
370 |
|
|
24 hours TSP |
||
|
AMS2 |
176 |
260 |
|
AMS3B |
167 |
|
|
AMS6 |
173 |
|
|
AMS7B |
183 |
|
2.2.3
The
event and action plan is provided in Appendix
D.
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, AMS3B, AMS6 and AMS7B are reported in the monthly
EM&A Reports prepared for Contract No. HY/2011/03 and HY/2013/01 respectively.
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, AMS3B and AMS7B by the Environmental Team of Contract
No. HY/2013/01 during the reporting period.