New car drivers exposed to toxic emissions

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Media Release - Ref 2001/290 - Dec 19 , 2001

New car drivers exposed to toxic emissions

_http://www.csiro.aumediaRelease/mr2001/newcars.htm_

(http://www.csiro.aumediaRelease/mr2001/newcars.htm)

New car headaches may involve more than minor warranty problems.

Research by CSIRO has found high levels of air toxic emissions in new motor

vehicles for up to six months and longer after they leave the showroom.

Dr Steve Brown, head of CSIRO's Air Quality Control research says, " Just as

air inside our homes and workplaces is often much more polluted than the air

outside, so sitting in a new car can expose you to levels of toxic emissions

many times beyond goals established by Australia's National Health & Medical

Research Council (NHMRC) " .

During its two-year study using three new motor vehicles from three weeks of

their delivery to purchasers, CSIRO became aware of anecdotal reports, such

as:

* A solicitor who was ill for several days (headache, lung irritation,

swelling) after collecting a new locally built car and driving it for only

10 minutes (the solicitor eventually swapped it for an 18-month-old car,

which did not have any effect on her health)

* A government worker who felt ill when driving new government cars

during the first 6 months after their delivery

* A chemically sensitised person who felt " spaced out' when in any new

car

* A salesman who regularly updated his locally built car and found he

became lethargic on long trips (e.g. from Melbourne to Geelong) when the car

was new

Dr Brown says, " Measurements made during the CSIRO study found total

volatile organic compound (TVOC) concentrations were initially very high (up to

64,000 micrograms per cubic metre) in two Australian-made cars which reached

the

market 3-10 weeks after manufacture " .

Controlled exposures of human subjects by other researchers to a 22-compound

mixture at concentrations of less than half this have produced effects

within minutes, such as subjective reactions (odour, discomfort, drowsiness,

fatigue/confusion), eye/nose/throat irritation, headache and (in symptomatic

subjects) neuro-behavioural impairment.

Brown says, " These levels decreased by approximately 60% in the first month,

but still much exceeded the NHMRC indoor air goal of 500 micrograms per

cubic metre " .

The third car was imported, reaching the market four months after

manufacture when the concentration of TVOCs was 2000 micrograms per cubic

metre.

" This is still four times more than the recommended goal and remains a

concern, " says Dr Brown.

Air toxics being emitted inside new cars during the CSIRO study and the

effects they may cause include:

* Benzene - a known human carcinogen for which an annual exposure goal

of 16 micrograms per cubic metre has been recommended in the UK

* Acetone - a mucosal irritant

* Cyclohexanone - a possible human carcinogen

* Ethylbenzene - a systemic toxic agent

* MIBK - a systemic toxic agent

* n-Hexane - a neurotoxic agent

* Styrene - a probable human carcinogen

* Toluene - a central nervous system dysfunction agent

* Xylene isomers - a foetal development toxic agent

Dr Brown says, " To avoid some exposure to this toxic cocktail, people who

buy new cars should make sure there is plenty of outside air entering the

vehicle while they drive, for at least six months after the vehicle has been

purchased, although this may not be possible in heavy traffic due to air toxics

from car exhausts. Ultimately, what we need are cars with interior materials

that produce low emissions " .

CSIRO is also keen to develop a Green Air Label to assist consumers to

choose healthy indoor air environments and environmentally friendly products.

David Lang, Director Technical Services of the Australian Automobile

Association says, " CSIRO's work shows the need for further study on motorists

to

identify any effects that may impair driving " .

RACV's Environmental Programs Officer, Kathryn Hannan says, " The RACV would

like to see further investigations conducted into the potential health

effects of VOC emissions from new car interiors " .

Petar Johnson, President of the Australian Environmental Labelling

Association, says, " This study has conclusively shown that designers of car

interiors

must give greater consideration to the materials that are used in

furnishings. In order to continue to deliver cars responsive to consumer health

and

choice for the 21st century with innovations such as dual fuel and recyclable

parts, the subject of VOC and human toxicity exposure while driving must be

high on the priority list for car redesign for environment programs " .

The exposure of Australians to air toxics is part of an ongoing study by

CSIRO Thermal & Fluids Engineering which has so far studied new homes, paints,

wood-based panels and furniture, unflued gas heaters, workplaces and offices.

 

CSIRO estimates that indoor air pollution costs the Australian community in

excess of $10 billion a year in illness and lost productivity.

The results of the air toxics program are being passed onto Government

regulators and agencies as they come to hand for further action.

CSIRO says there's now an urgent need to move from this assessment phase to

implementing control strategies, such as the Green Air Label, across all

indoor air environments.

The findings of the CSIRO study were released at a Press Conference on:

19th December.

Place: Melbourne

Venue: Level 9/60 Collins St

Time: 1100 hours

To display a larger version of the image above click _here._

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More information:

Dr Dilip Manuel, Business Development Manager, CSIRO Thermal & Fluids

Engineering +61 3 9252 6073

Ken Anderson, Manager Communications, CSIRO Built Environment ,+ 61 3 9252

6172, 0414 457 214

Contacts Ms Rosie Schmedding CSIRO Media PO Box 225

Dickson ACT 2602 Phone: +61 2 6276 6520 Fax: +61 2 6276 6821 Mobile:

+61 418 622 653 Email: _Rosie.Schmedding _

(Rosie.Schmedding) CMIT Enquiries Private Bag 33

Clayton South, VIC 3169

Australia Phone: +61 3 9545 2777 Fax: +61 3 9544 1128 Email:

_cmit.enquiries _ (cmit.enquiries)