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BEAM P
LUS FOR
N
EW
B
UILDINGS
I
NDOOR
E
NVIRONMENTAL
Q
UALITY
(I
EQ
)
V
ERSION
1.2
I
EQ
3 B
IOLOGICAL
C
ONTAMINATION
Copyright © 2012 BEAM Society Limited. All rights reserved.
Page 147
6
IEQ
6.2
H
YGIENE
I
EQ
3 B
IOLOGICAL
C
ONTAMINATION
E
XCLUSIONS
Residential buildings.
O
BJECTIVE
Ensure that the design, installation and facilities for operation and
maintenance of air conditioning systems, and water systems and
features, are such as to reduce the risk of biological contamination.
C
REDITS ATTAINABLE
1
P
REREQUISITES
None.
C
REDIT REQUIREMENT
1 credit for complying with the recommendations given in the Code of
Practice - Prevention of Legionnaires Disease, in respect of air-
conditioning and ventilation systems, and water systems.
A
SSESSMENT
The Client shall submit a report prepared by a suitably qualified person
detailing how the design and installation of the air-conditioning and
ventilation systems and equipment meet with the requirements and
recommendation contained in the Code of Practice - Prevention of
Legionnaires Disease [1], or at least equal equivalent code. The report
shall also detail how water supply, particularly hot water supply, and
water use in features such as spas, fountains, etc., are designed and
installed in compliance with the Code or Practice.
B
ACKGROUND
Most cases of legionnaires' disease (LD) are caused by the bacterium
Legionella pneumophila, There are many other species of the organism
which have been implicated in human disease, but other milder illnesses
may be caused by these organisms. All illnesses due to legionella
species are known collectively as 'legionelloses'; Pontiac Fever is one of
the milder conditions. Legionella pneumophila is found in natural water
supplies and in soil. It is also found in many recirculating and water
supply systems.
Measurements in a newly completed building are unlikely to reveal
problems with biological contamination caused by either air-conditioning
and ventilation systems, or water systems. Consequently, BEAM
requires the confirmation on the design and installation of systems and
equipment to reduce the possibility of problems arising during use of the
building.
1
Prevention of Legionnaires’ Disease Committee, Electrical and Mechanical Services Department, Hong Kong Government.
Code of Practice for the Prevention of Legionnaires’ Disease in Hong Kong. 2007.
http://www.emsd.gov.hk/emsd/e_download/pps/code.doc