• Demolition
    Demolition

Demolition of building involves large amount of concrete breaking works. Traditional excavator mounted concrete breaker is one of the most popular equipment use for building demolition, and its sound power level can achieve about 122 dB(A). However, various quieter equipment for concrete breaking and demolition can also be found in the market.

Sound pressure level at 7 meters from equipment

 

Noise reduction for some mitigation meausres for reference.

Noise reduction

 

Equipment with QPME Label

QPME or Quality Powered Mechanical Equipment items, are construction equipment items that are new, notably quieter, more environmentally friendly and efficient. QPME system is an administrative system developed by Environmental Protection Department to reflect the state-of-the-art construction equipment, to facilitate the Construction Noise Permit (CNP) application process, and at the same time supports the "Pay for Safety and Environment" concept of the Works Branch of the Development Bureau. Applications from equipment over 6 years old are not normally be accepted. The capital expenditure on QPME can be deducted from Profits Tax. Detailed information can found in the website below:

http://www.epd.gov.hk/epd/english/environmentinhk/noise/qpme/index.html