Noise Dispersion - Noise Modeling - Noise Prediction - Sydney - NSW - New South Wales

Excellence in air, noise and water pollution
measurement, assessment and engineering control, based on
(1) solid academic background combined with comprehensive practical experience;
(2) strong professional ethics.

Pollution Control Consultancy and Design
(a member of ACEA and AAAC)
ABN : 71 776 800 318
Independent, accredited acoustical and environmental
engineering consulting firm established in January 1995.

Pollution Control Consultancy and Design carries out noise dispersion (noise propagation, noise prediction) modelling that takes into account:

geometric spreading (divergence) of noise;

absorption of noise by air;

ground effects;

topography;

noise barriers and enclosures; and

wind and temperature gradient effects.

Below, an example of results of our noise dispersion modelling -
- isopleths of the L_Aeq,T around drilling operation (source of noise at 0,0):

Such results allow to significantly reduce noise impact in sensitive directions just by proper orientation of noisy equipment.

NOTE that the isopleth of 50 dB(A) reaches:

450 metres on the East;
500 metres on the West;
just over 500 metres on the South; and
nearly 1100 metres on the North.