Environmental Monitoring Information

Noise Monitoring Data
During the construction stage of the Project, mitigation measures have been put in place to control the construction noise levels. Noise monitoring is also conducted to ensure compliance with the relevant noise criteria. The noise monitoring results are available for downloading.

Explanatory note:
Oct 2011 to May 2018
NM2 – Ho Fook Building
NM6 – Chancery Mansion
 
Jun 2020 to Jan 2021, Jun 2023 – ongoing
N2a – 2nd Floor of Block 3 at Tai Kwun
N5a – Outside of Boundary Wall of Tai Kwun at Chancery Lane

*Leq - Equivalent Continuous Sound Level. This is a widely used noise descriptor that is commonly adopted in many developed countries. It is the constant noise level which, under a given situation and time period, contains the same acoustic energy as the actual time-varying noise level.
*L10 - It is the level exceeded for 10% of the time (30 mins). For 10% of the time, the sound or noise has a sound pressure level above L10. For the rest of the time, the sound or noise has a sound pressure level at or below L10. These higher sound pressure levels are probably due to sporadic or intermittent events. 
*L90 - It is the level exceeded for 90% of the time (30 mins). For 90% of the time, the noise level is above this level. It is generally considered to be representing the background or ambient level of a noise environment.

*Source: Environmental Protection Department, The Government of the Hong Kong Special Administrative Region

Environment Related Information

Environmental Monitoring & Audit Monthly Report

Monthly EM&A Report 1 December 2023 Monthly EM&A Report 1 November 2023 Monthly EM&A Report 1 October 2023 Monthly EM&A Report 1 September 2023 Monthly EM&A Report 1 August 2023 Monthly EM&A Report 15 June 2023 Monthly EM&A Report 1 January 2021 Monthly EM&A Report 1 December 2020 Monthly EM&A Report 1 November 2020 Monthly EM&A Report 1 October 2020 Monthly EM&A Report 1 September 2020 Monthly EM&A Report 1 August 2020 Monthly EM&A Report 1 July 2020 Monthly EM&A Report 1 June 2020 Monthly EM&A Report 1 May 2018 Monthly EM&A Report 1 April 2018 Monthly EM&A Report 1 March 2018 Monthly EM&A Report 1 February 2018 Monthly EM&A Report 1 January 2018 Monthly EM&A Report 1 December 2017 Monthly EM&A Report 1 November 2017 Monthly EM&A Report 1 October 2017 Monthly EM&A Report 1 September 2017 Monthly EM&A Report 1 August 2017 Monthly EM&A Report 1 July 2017 Monthly EM&A Report 1 June 2017 Monthly EM&A Report 1 May 2017 Monthly EM&A Report 1 April 2017 Monthly EM&A Report 1 March 2017 Monthly EM&A Report 1 February 2017 Monthly EM&A Report 1 January 2017 Monthly EM&A Report 1 December 2016 Monthly EM&A Report 1 November 2016 Monthly EM&A Report 1 October 2016 Monthly EM&A Report 1 September 2016 Monthly EM&A Report 1 August 2016 Monthly EM&A Report 1 July 2016 Monthly EM&A Report 1 June 2016 Monthly EM&A Report 1 May 2016 Monthly EM&A Report 1 April 2016 Monthly EM&A Report 1 March 2016 Monthly EM&A Report 1 February 2016 Monthly EM&A Report 1 January 2016 Monthly EM&A Report 1 December 2015 Monthly EM&A Report 1 November 2015 Monthly EM&A Report 1 October 2015 Monthly EM&A Report 1 September 2015 Monthly EM&A Report 1 August 2015 Monthly EM&A Report 1 July 2015 Monthly EM&A Report 1 June 2015 Monthly EM&A Report 1 May 2015 Monthly EM&A Report 1 April 2015 Monthly EM&A Report 1 March 2015 Monthly EM&A Report 1 February 2015 Monthly EM&A Report 1 January 2015 Monthly EM&A Report 1 December 2014 Monthly EM&A Report 1 November 2014 Monthly EM&A Report 1 October 2014 Monthly EM&A Report 1 September 2014 Monthly EM&A Report 1 August 2014 Monthly EM&A Report 1 July 2014 Monthly EM&A Report 1 June 2014 Monthly EM&A Report 1 May 2014 Monthly EM&A Report 1 April 2014 Monthly EM&A Report 1 March 2014 Monthly EM&A Report 1 February 2014 Monthly EM&A Report 1 January 2014 Monthly EM&A Report 1 December 2013 Monthly EM&A Report 1 November 2013 Monthly EM&A Report 1 October 2013 Monthly EM&A Report 1 September 2013 Monthly EM&A Report 1 August 2013 Monthly EM&A Report 1 July 2013 Monthly EM&A Report 1 June 2013 Monthly EM&A Report 1 May 2013 Monthly EM&A Report 1 April 2013 Monthly EM&A Report 1 March 2013 Monthly EM&A Report 1 February 2013 Monthly EM&A Report 1 January 2013 Monthly EM&A Report 1 December 2012 Monthly EM&A Report 1 November 2012 Monthly EM&A Report 1 October 2012 Monthly EM&A Report 1 September 2012 Monthly EM&A Report 1 August 2012 Monthly EM&A Report 1 July 2012 Monthly EM&A Report 1 June 2012 Monthly EM&A Report 1 May 2012 Monthly EM&A Report 1 April 2012 Monthly EM&A Report 1 March 2012 Monthly EM&A Report 1 February 2012 Monthly EM&A Report 1 January 2012 Monthly EM&A Report 1 December 2011 Monthly EM&A Report 24 October 2011