- Project plans
- Project activities
- Legislation and standards
- Industry context
Last edited 26 Mar 2018
Locating ventilation inlets to reduce ingress of external pollutants into buildings: A new methodology IP 9 14
Locating ventilation inlets to reduce ingress of external pollutants into buildings: A new methodology (IP 9/14), was written by Hong Cheng, Vina Kukadia and David Hall. It was published by BRE on 27 June 2014.
Studies have shown that the general population spends 90% or more of their time indoors, and the most susceptible individuals, such as the elderly and those with pre-existing medical conditions, spend almost all their time indoors. This means that the quality of indoor air is of great importance to health, comfort and wellbeing.
Effective ventilation to provide optimum indoor air quality relies on good outdoor air quality. In practice however, outdoor air may be contaminated by pollutants. A new methodology has been developed, using a Pollutant Ingress Index, to identify areas of a building where pollutant ingress is most likely and to determine the relative magnitude of this ingress.
This methodology will assist with:
- Placement of ventilation inlets so that pollution can be minimised.
- Carrying out more effective indoor air quality assessments to ensure successful planning applications.
- Developing strategies to protect building occupants from toxic contaminants releases, whether accidentally (such as from storage tanks and fires) or intentionally (such as from chemical, biological, radiological or explosive incidents).
The methodology is intended for use by professionals such; as architects, developers, planners and building services engineers, as well as regulatory authorities such as; environmental health, building control, planning officers and public health departments.
The contents of the 16-page Information Paper are:
- Earlier BRE studies.
- Impact of outdoor pollutants on indoor environments.
- Methodology for determining the Pollutant Ingress Index.
- Wind tunnel studies.
- Application of the new methodology.
- Practical application of the Pollutant Ingress Index.
 Related articles on Designing Buildings Wiki
- Air change rates.
- Air quality.
- BRE articles on Designing Buildings Wiki.
- BRE Buzz articles on Designing Buildings Wiki.
- BRE Buzz.
- BREEAM Indoor air quality plan.
- BREEAM Indoor air quality Ventilation.
- BREEAM Indoor pollutants VOCs.
- Building Research Establishment.
- Cross ventilation.
- Displacement ventilation.
- Domestic ventilation systems performance.
- Indoor air quality,
- Indoor air velocity.
- Mechanical ventilation.
- Natural ventilation.
- Sick building syndrome.
- Stack effect.
- Whole building ventilation.
Featured articles and news
A document can be called a bond or a guarantee. Does the name matter and what is the difference between them?
New briefing note is launched focusing on increasing knowledge of housing that promotes health and wellbeing.
Arbitration is a private, contractual form of dispute resolution used in the construction industry.
The European Parliament has approved a revised Energy Performance of Buildings directive.
One in six MPs supports the ring-fencing of retentions as proposed in the 'Aldous Bill'.
A stakeholder is anyone who has an interest in the process or outcome of a construction project.
BRE launches online self-assessment tool for ethical labour sourcing.
Tower refurbishment failed to meet safety standards on several counts, according to leaked report.
It may seem obvious but what does the term 'structure' refer to within a built environment context?
Carillion's liabilities could be much higher than previously thought, according to Receiver.
Photographing Historic Buildings, by the former head of photography at English Heritage.