In accordance with the
approved EM&A Manuals, 24-hour Total Suspended Particulates (TSP) level and
Leq (30min) at the designated monitoring stations 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. Leq (30min) monitoring is
conducted for at least once a week during the construction phase between 0700
and 1900 on normal weekdays. The Action and Limit Levels of the air quality
monitoring and noise monitoring are given in Appendix C
2.2.1
According to the EM&A Manual, three
monitoring locations for air quality monitoring and noise monitoring, 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 and two
noise monitoring locations which are identified in Cha Kwo Ling area, are
farther than 500m and 300m away from the site boundary respectively and thus
not covered by this Contract. The monitoring works in Cha Kwo Ling area are
covered by other Contract(s) respectively.
2.2.2
According to the approved alternative baseline
air quality and noise monitoring locations (EPD reference: () in 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).
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 locations
KER1b.
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 locations
KTD2b.
2.2.5
The most updated locations are summarized in Table 2.1
and shown in Figure
2.
2.3.1
No Action and Limit Level exceedance for 24-hr TSP was recorded in the
reporting period at all monitoring stations.
2.3.2 No Action / Limit Level exceedance for construction noise was recorded in
the reporting period at all monitoring stations.
2.3.3 No raining and wind with speed over 5 m/s was observed during noise
monitoring according to the onsite observation.
2.3.4 During the reporting period, major dust sources including loading and
unloading of C&D wastes, vehicles movement were observed in the site. Major
noise sources including noise emission from plant & PME and some other
construction activities, travel of vehicles, loading and unloading of C&D
waste were observed in the site. Non-project related construction activities at
the nearby construction site and road traffic along Shing Cheong Road, Cheung
Yip Street and the Kwun Tong By-pass were observed. The above factors may affect the monitoring
results.
2.3.5 Graphical presentation of the monitoring data in the reporting period is
presented in Appendix D.
2.4
Comparison of Monitoring Results with EIA
Predictions
2.4.1 The monitoring data was compared with the EIA predictions as summarized
in Table 2.2
and Table
2.3.
2.4.2
The 24-hour TSP monitoring results at KER1b in the reporting months did not exceed the Predicted Maximum 24-hour TSP
Concentration in the approved Environmental Impact Assessment (EIA) Report and
no Action / Limit Level exceedance was recorded in the reporting period.
2.4.3
The 24-hour TSP monitoring result of KTD1a on 10 November 2018 exceeded
the prediction in the approved EIA report. No project related dust source was
observed during the site monitoring. The discrepancy between the 24-hour TSP
concentration and EIA Prediction in KTD1a is considered due to dust source from
the non-project related construction activities near the monitoring station and
the road travel along Shing Fung Road.
2.4.4 The noise monitoring results in the reporting months
did not exceed the Maximum Predicted Mitigated Construction Noise Level in the
approved Environmental Impact Assessment (EIA) Report and no Action / Limit
Level exceedance was recorded in the reporting period.