| ABBREVIATIONS
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| ORGANISATIONS |
| ACGIH | American Conference of Governmental Industrial Hygienists
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| AFA | International Association of Flight Attendants
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| ASHRAE | American Society of Heating, Refrigerating and Air-Conditioning Engineers
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| AsMA | US Aerospace Medical Association
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| ATA | Air Transport Association of America
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| AUC | Air Transport Users Council
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| BALPA | British Air Line Pilots Association
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| BAMC | British Airways Maintenance, Cardiff
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| BATA | British Air Transport Association
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| BRE | Building Research Establishment
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| CAA | Civil Aviation Authority
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| DETR | Department of the Environment, Transport and the Regions
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| DERA | Defence Evaluation Research Agency of the Ministry of Defence
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| DoH | Department of Health |
| DoT | US Department of Transportation
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| ECAC | European Civil Aviation Conference
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| FAA | US Federal Aviation Administration
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| HSE | Health and Safety Executive
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| IAPA | International Air Passenger Association
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| IATA | International Air Transport Association
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| ICAO | International Civil Aviation Organisation
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| ICRP | International Commission on Radiological Protection
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| IRS | Inflight Research Services
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| JAA | Joint Aviation Authorities, the European organisation set up under ECAC
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| NASA | US National Aeronautics and Space Administration
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| NRPB | National Radiological Protection Board
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| OPIN | Organo-phosphate Information Network
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| OSHA | US Occupational Safety and Health Administration
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| RISES | Research Institute for Sport and Exercise Sciences
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| WHO | World Health Organisation
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| OTHER |
| AED | automatic external defibrillator
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| AIDS | acquired immune deficiency syndrome
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| AMEs | authorised medical examiners, who conduct flight crew licensing medicals
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| ANO | Air Navigation Order, CAA's principal regulatory instrument
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| BAe 146 | British Aerospace 146, a type of aircraft
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| DVT | deep vein (or venous) thrombosis
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| ECS | environmental control system
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| ENT | ear, nose and throat |
| ETS | environmental tobacco smoke
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| FAR | Federal Aviation Requirement, FAA's regulatory instrument
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| FREMEC | IATA standard card for those who need frequent medical clearance, to avoid the need for repeated submission of MEDIF forms
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| GP | general practitioner |
| HEPA | high efficiency particulate air, as a descriptor of filters
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| HIV | human immuno-deficiency virus
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| HRT | hormone replacement therapy
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| JAR | Joint Aviation Requirement, JAA's regulatory instrument
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| MEDIF | IATA standard medical information form for intending air travellers to notify airlines of queries about fitness to fly, and of any special flight-related requirements
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| TB | tuberculosis |
| TCP | tri-cresyl phosphate, an anti-wear additive in aviation lubricants (and not the well-known antiseptic, tri-chloro phenol)
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| TOCP | tri-ortho-cresyl phosphate, the "ortho" and highly toxic form of TCP
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| VTE | venous thrombo-embolism - the term for the full syndrome of both initial DVT and any subsequent embolism
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| TECHNICAL TERMS |
| Units | |
| atm | atmosphere - a measure of pressure, 1 atmosphere being standard atmospheric pressure at sea-level
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| ºC | degrees centigrade
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| cfm | cubic feet per minute
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| ºF | degrees Fahrenheit
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| kg | kilogram |
| lb/min | pounds per minute, the US measure for air supply (1 lb/m = 16 cfm at standard effective cabin altitude)
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| micron | a millionth of a metre or one thousandth of a millimetre
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| mmHg | millimetres of mercury (Hg) - a measure of atmospheric pressure by reference to an old-fashioned barometer, 760 mmHg being 1 atm
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| µg/m3 | micrograms (millionths of a gram) per cubic metre
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| µSv | micro-Sievert (one millionth)
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| mSv | milli-Sievert (one thousandth)
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| ppm | parts per million - the conventional way of referring to low concentrations, 1 ppm being 0.0001%
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| RH | relative humidity - normally %RH, being the measure of water vapour in the atmosphere as a percentage of the maximum water vapour that air at that temperature can hold
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| Sv | Sievert, a unit for measuring ionising radiation
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| Other | |
| Aircrew | all personnel employed to work in aircraft
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| Barotrauma | pain in (or damage to) parts of the body caused by rapid changes in air pressure
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| Cabin crew | those working only in the passenger cabin and associated areas such as galleys
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| Case-control study (DVT)
| a study which involves identifying people ("cases") who have DVT and comparing their recent travel histories and medical backgrounds with a closely matched series of "control" subjects without DVT
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| Disinsection | WHO-required procedures for insect control
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| DOP test | test of air filter efficiency based on removal of liquid droplets of mean size 0.3 microns
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| Embolism | the consequence of a blockage caused by an embolus reaching a blood vessel through which it cannot pass
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| Embolus | a thrombus which has broken away from the wall of the vein
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| Epidemiology | the study of the statistics of health and disease
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| Flight crew | pilots and flight engineers employed only on the flight-deck
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| Hypoxia | lowered body oxygen levels
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| PM10 | particulates of diameter range 2.5 to 10 microns, a measure of particulate atmospheric contamination
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| RSP | respirable suspended particulates, a measure of particulate atmospheric contamination
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| TSP | total suspended particulates, a measure of particulate atmospheric contamination
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| Public exposure limits | regulatory or advisory limits for continuous exposure of the public to atmospheric contaminants, as discussed in paragraph 4.18
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| Salt Flame test | test of air filter efficiency based on removal of solid particles of mean size 0.65 microns
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| Thrombus | a blood clot formed inside a vein
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| Workplace limits | regulatory or advisory limits for exposure to atmospheric contaminants by workers in the workplace, as discussed in paragraph 4.17
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