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Samuel, Aizaz. ENERGY CONSERVATION VS HEALTH: THE AIR QUALITY PICTURE. INTERNATIONAL IBPSA CONFERENCE, 11., 2009, Glasgow, Scotland.
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Abstract

With  the advent  of  the concepts of efficient  energy  use   focus   has   shifted   towards   buildings   becoming  more air tight and having lower levels of ventilation.  This is due to the fact that as buildings become better  insulated   and   conduction   heat   loss   is   reduced   the  proportion of heating and air conditioning  load due  to ventilation has increased and may offer the largest  scope for reducing energy demand. This may have a  detrimental  effect  on  internal  air quality (IAQ)  and  compounds existing environmental issues such as out  gassing from materials in new buildings. At the same  time environmental standards and expectations have  risen as has the technical capability to evaluate their  effects   through   epidemiological   studies.   Good  environmental quality is a fundamental human need,  absence   of  which   affects   health   and   productivity.  Many   occupants   express   annoyance   about  modern  buildings and terms such as sick building syndrome  (SBS)   are   used   to   describe   the   problem.  Deterioration   of   IAQ   has   been   evident   from   an  increase  in occupant  complaints and an  increase  in  breathing   related   sicknesses   in   recent   years.  With  predicted   substantial   growth   of   the   urban  environment the problem will only be exacerbated in  the future.  A  simple and effective   solution  to  the problem of  deficient IAQ is increasing ventilation but increasing  the amount  of   inlet   fresh air  has direct  bearing on  energy   load.   Another   important   factor   is   the  ventilation   scheme   (mechanical,   natural,   mixed­ mode). This paper looks at the relationship between  good IAQ,  ventilation,  associated energy overheads  and   carbon   emissions.   Also   identified   are   best  practices that optimise the performance of a building  in relation to this issue.
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