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 Three Action Level exceedance for 24-hr TSP
were recorded. An exceedance was recorded at KTD2c on 14 October 2020 and two
exceedance were recorded at KER1 and KTD2c on 24 October 2020. No Action /
Limit Level exceedance was recorded for 24-hr TSP at KTD1 in the reporting
month.
2.3.3 On 14 October 2020, at KTD2c non-project
related construction works were carried out during 24-hr TSP monitoring. Dust
was generated from construction site of Trunk Road T2 when C&D materials
loading and unloading activities was processing. Thus, it is considered that
this exceedance is not project related.
2.3.4 On 24 October 2020, at KER1 and KTD2c
non-project related construction works were carried out during 24-hr TSP
monitoring. Dust arising from the vehicle movement from construction site of
Trunk Road T2. Thus, it is considered that this exceedance is not project
related.
2.3.5 No complaint of air quality was received.
Therefore, no impact 1-hour TSP monitoring was conducted in the reporting
month.
2.3.6 The weather conditions during the monitoring are provided in Appendix F.