2.            SUMMARY OF EM&A REQUIREMENTS AND MONITORING RESULTS

 

2.1         Monitoring Requirement

 

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         Monitoring Locations

 

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: 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      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.

 

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 on 3 August 2020.

 

2.2.7      The most updated locations are summarized in Table 2.1 and shown in Figure 2.

 

2.3         Results and Observations

 

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 June and July, the site observations were recorded by the ET of Contract No. KL/2014/03. At KTD1a, project related construction activities and road traffic along Shing Fung Road and Shing Cheong Road were observed in the surroundings. At KTD2c, road traffic along the Kwun Tong By-pass and non-project related construction activities at the nearby construction site was observed. At KER1b, project related construction activities, road traffic along Cheung Yip Street and non-project related construction activities at the nearby construction site was observed. 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. The above factors may affect the monitoring results.

 

2.3.5     During August, the site observations were recorded by the ET of Contract No. ED/2018/04. At KTD1, road traffic along Shing Fung Road and Shing Cheong Road and non-project related construction activities at the nearby construction site of New Acute Hospital and Trunk Road T2 was observed. At KTD2c, road traffic along Kwun Tong By-pass and non-project related construction activities at the nearby construction site of New Acute Hospital and Trunk Road T2 was observed. At KER1, road traffic along Kai Hing Road and Cheung Yip Street and non-project related construction activities at the nearby construction site of New Acute Hospital and Trunk Road T2 was observed.

 

2.3.6     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 KER1 / KER1b and KTD1 / KTD1a 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 noise monitoring results at KER1 / KER1b and KTD1 / KTD1a 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.