Environmental Noise - Noise Pollution Assessment and Control by PCCD - Sydney - NSW

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.

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Noise is technically one of the most complex and least understood forms of pollution.
Although by listening we detect noise with a great sensitivity, we have often difficulties to describe it and we certainly cannot define it in technical terms - we usually know when noise is excessive, but we cannot predict the required noise reduction and, more important, we cannot determine how to effectively reduce the excessive noise.

The proper noise pollution assessment and design of effective noise control measures require:
a. thorough understanding of acoustics;
b. extensive practical experience; and
c. complicated and expensive sound analysing equipment.

Having all the above, we provide outstanding, all-inclusive services in noise pollution measurement, assessment and engineering control, viz.

1. environmental, interior and occupational noise measurements and analyses with
the latest technology, NATA-calibrated, Class 1, Brüel & Kjær (B&K) Modular Precision Real-Time Sound Analysers type 2250 and Modular Precision Real-Time Sound and Vibration Analysers type 2260 Investigator, with:

a. Enhanced Sound Analysis Software BZ7206 (1/3-octave band spectrum range: 6.3 Hz to 20 kHz);

b. Fast Fourier Transform (FFT) Software BZ7208 (narrow-band spectrum
from 0.1 Hz to 20 kHz, with resolution better than 0.5 Hz);

c. Building Acoustics Software BZ7204 (measurements of sound insulation
and reverberation time); and

d. Sound Intensity Software BZ 7205 [identification/location of (major)
sources of noise];

2. overview, post-processing and in-depth analysing of noise measurement data
with Brüel & Kjær (B&K) software packages:
- Noise Explorer type 7815; and
- Evaluator type 7820;

3. noise dispersion modelling;

4. product noise rating compliance certification - determination of sound power level
of a mechanical system on the spot, in your laboratory or factory, without
the necessity of placing this system inside the anechoic or reverberant chambers (expensive) or in the acoustically free-field (in many cases unattainable);

5. assessment of aircraft, helicopter, road traffic, motor sport, entertainment, industrial and/or community noise impact on residential premises;

6. assessment of environmental noise according to New South Wales Industrial Noise Policy (INP) published in January 2000 by then Environment Protection Authority of
New South Wales (EPA), now New South Wales Department of Environment, Climate Change and Water (DECCW);

7. assessment of occupational noise according to requirements of WorkCover Authority (WorkCover), i.e.

a. Occupational Health and Safety Regulation 2001 - Clause 49,
Chapter 4, Part 4.3, Division 4 - Noise management; and

b. Australian/New Zealand Standard: Occupational noise management
(AS/NZS 1269: 2005);

8. selection of optimal noise reduction methods;

9. design of noise barriers, enclosures and silencers;

10. redesign recommendations for the silencing of noisy machinery and processes;

11. recommendations on modifications of both industrial buildings accommodating
noisy equipment and residential buildings exposed to excessive noise;

12. assessment of road traffic noise with U.S. Department of Transportation Federal Highway Administration Traffic Noise Model (FHWA TNM; the successor of FHWA Stamina);

13. certification of compliance with Australian Design Rules:
- ADR 28/01 : External Noise of Motor Vehicles;
- ADR 39/00 : External Noise of Motor Cycles; and
- ADR 56/00 : Moped Noise;

14. MOST ADVANCED, VERY USEFUL BUT RARELY AVAILABLE measurements of sound intensity with Brüel & Kjær (B&K) Modular Precision Real-Time Sound Analysers
type 2260, with Sound Intensity Probe type 3595 (state-of-the-art hand-held sound intensity system).