2.1
Monitoring
Requirement
2.1.1 In
accordance with the approved EM&A Manuals, 24-hour Total Suspended
Particulates (TSP) monitoring at the designated air quality monitoring station
is required. Impact 24-hour TSP monitoring should be carried out at least once
every 6 days. In case of complaints, 1-hour TSP monitoring should be carried
out at least 3 times per 6 days when the highest dust impacts are likely to
occur.
2.1.2 The monitoring equipment, monitoring methodology and monitoring schedule
are detailed in the monthly EM&A Reports for EP-451/2013 prepared for Contract No. ED/2018/04.
2.2.1 According to
the EM&A Manual, three air quality monitoring locations, namely KTD1, KTD2
and KER1, are covered by this Contract within the South Apron Area of Former
Kai Tak Airport. The other two air quality monitoring
locations, which are identified in Cha Kwo Ling area,
are farther than 500m away from the site boundary and thus not covered by this
Contract. The monitoring works in Cha Kwo Ling area
are covered by Contract No. ED/2018/04.
2.2.2 According to
the approved alternative baseline air quality and noise monitoring locations
(EPD reference: EP2/K19/A/21 pt.5), the original monitoring locations (KTD1,
KTD2 and KER1) are proposed to be replaced by alternative monitoring locations
(KTD1a, KTD2a and KER1a) for air quality monitoring.
2.2.3 According to
the approved relocation of monitoring location KER1a (EPD reference: () in
EP2/K19/A/21 pt.5), the monitoring location KER1a are proposed to be relocated
by alternative monitoring location KER1b for air quality monitoring.
2.2.4 According to
the approved relocation of monitoring location KTD2a (EPD reference: () in
EP2/K19/A/21 pt.6), the monitoring location KTD2a are proposed to be relocated
by alternative monitoring location KTD2b for air quality monitoring.
2.2.5 According to
the approved relocation of monitoring location KTD2b (EPD reference: () in
EP2/K19/A/21 pt.7), the monitoring location KTD2b are proposed to be relocated
by alternative monitoring location KTD2c for air quality monitoring.
2.2.6 As informed by the ET of Contract No. ED/2018/04, the monitoring location
KTD1a and KER1b have been relocated to KTD1 and KER1 for air monitoring on 3
August 2020.
2.2.7 The most
updated locations are summarized in Table 2.1 and shown in Figure 2.
2.3.1
The monitoring results and observations for KTD1, KTD2c and KER1 are
reported in the Monthly EM&A Reports for EP-451/2013 prepared for Contract
No. ED/2018/04.
2.3.2
Five Action Level exceedance for 24-hr TSP were recorded in the
reporting month. An exceedance were recorded at KER1 on 20 January 2021. Four
exceedance were recorded at KTD2c on 4, 14, 20 and 26 January 2021.
2.3.3
No Action / Limit Level exceedance was recorded for 24-hr TSP at KTD1 in
the reporting month.
2.3.4
On 4 January 2021, at KTD2c non-project related construction works were
carried out during 24-hr TSP monitoring. Dust generated from construction site of
Trunk Road T2 when breaking activities were processing. Thus, it is considered
that this exceedance is not project related.
2.3.5
On 14 January 2021, at KTD2c non-project related construction works were
carried out during 24-hr TSP monitoring. Dust generated from construction site
of Trunk Road T2 when breaking activities were processing. Dust arise from a
stockpile of excavated dusty material with no impervious sheet covered was
observed at the construction site of Trunk Road T2. Thus, it is considered that
this exceedance is not project related.
2.3.6
On 20 January 2021, at KTD2c non-project related construction works were
carried out during 24-hr TSP monitoring. Dust generated from construction site
of Trunk Road T2 when material handling was carried out near the monitoring
station. Dust arise from a stockpile of excavated dusty material with no
impervious sheet covered was observed at the construction site of Trunk Road
T2. Thus, it is considered that
this exceedance is not project related.
2.3.7
On 20 January 2021, at KER1 non-project related construction works were
carried out during 24-hr TSP monitoring. Dust generated from open stockpiles of
excavated dusty material in the vicinity of monitoring station KER1 and the
road traffic along Kai Hing Road. Thus, it is
considered that this exceedance is not project related.
2.3.8
On 26 January 2021, at KTD2c non-project related construction works were
carried out during 24-hr TSP monitoring. Dust generated from construction site
of Trunk Road T2 when piling work was carried out near the monitoring station. Dust arise from a stockpile of excavated dusty material with
no impervious sheet covered was observed at the construction site of Trunk Road
T2 and road traffic along Kwun Tong Bypass. Thus, it is considered that this exceedance
is not project related.
2.3.9
No complaint of air quality was received. Therefore, no impact 1-hour
TSP monitoring was conducted in the reporting month.
2.3.10
The weather
conditions during the monitoring are provided in Appendix F.