Tf: “the _energ a shortage has. worried, ‘the = best.

personal solution might:

be to. invest in. long undies, wear layers. of sweaters and stoke up the furnace internally ‘by ° increasing. your ‘caloric’ intake rather than attempting to maintain a cosy en- ‘vironment by sealing and insulating your home.

.

Dr. Theodor Sterling, of Simon) Fraser University’s

Department of Computing

Science, is preparing an exhaustive report for the U.S. National Academy of Science dealing with:indoor pollution, "We tend to think of pollution as something that happens outdoors, with ‘smoke, industrial waste, car

“you os thing.’

;

‘paying, more attention

“exhausts and that sort of . he says,

Nt is becoming apparent

‘that. Ahere should be equal

concern for indoor pollution - particularly as with the energy shortage, people are to and

sealing home

_ buildings.”

Sterling first -worked on the problem = of indoor pollution in the 50’s when

technology made it possible ~ -fer~nuclear powered sub-

marines to remain sub- merged for several months at atime. .

“How to keep the air breathable became, a problem and we began to study pollution in) ¢losed spaces, Smoking is only a Minur source of indoor pollution.’

the les SOUrCES

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pollution are kitchen ranges. Threats of oil shortages have encouraged many people to switch to. more plentiful natural gas. However, recent studies have shown that cooking ‘with gas can produce unacceptably high levels of carbon monoxide. In one study — published recently, Sterling measured carbon monoxide in Van-- couver homes. °

“tronically, the problem

placed on the butner. The more burners used at one time, the greater the = in- crease in carbon monoxide because the cooking vessel prevents free air flow to the flame.

“Carbon

monoxide — in many kitchens reaches levels which would cnot be

tolerated in industry ntianon is ent problem,” Sterling

“Insufficient ve aw oree

si geen

‘stripping,

4 explains. Wood and masonry ' structures provided cracks -for air to seep in and out.

Now large buildings are a_ framework over which a skin» is hung, very much like a submarine. Windows don't open, areas are sealed off | and natural - circulation is . impaired within the building. —

“With energy shortages, people are attempting to seal up their homes in much the thermal windows, weather insulation and so on,

“At the same time, they are increasing the number of pollutants in their homes. Cooking is a major source of hydrocarbon = production, but pollutants are also wenerated by paints, var- nishes, lacquers, pain thinners, solvents, cleaning Nuids, artificial leathers,

CONTINUED ON PAGE C3

+

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