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Industry committee  When you're looking at land lines, I think the potential exposure to radio frequency fields is not an issue. As I said previously, the things people talk about when we look at wireless are hand-held mobile phones, where the device is held close to the body. As I commented earlier

February 27th, 2007Committee meeting

Prof. Daniel Krewski

Industry committee  I think that is indeed a legend. It's not an issue we've been asked to communicate on, but there's no scientific basis—

February 27th, 2007Committee meeting

Prof. Daniel Krewski

Industry committee  I think it's a communications issue. I was reading an article just this afternoon in the Journal of Public Health that was talking about restrictions on the use of cellphones in hospitals. When you go into a hospital you're asked to turn off your phone because it might interfere

February 27th, 2007Committee meeting

Prof. Daniel Krewski

Industry committee  So if we look at the whole network, including land lines, fibre optics and wireless links, is there any area in there where we would have some concerns from the population health point of view? Is that the question?

February 27th, 2007Committee meeting

Prof. Daniel Krewski

Industry committee  We've been looking at radio frequency field exposure from multiple sources. The main source of exposure in communications is probably the mobile phone handset, because you hold it close to your head and the field strength is strongest right at the tip of the antenna. If you look

February 27th, 2007Committee meeting

Prof. Daniel Krewski

Industry committee  I would like to begin by thanking the Committee for giving me the opportunity to make a few comments with regard to frequencies. Our program at the University of Ottawa focuses on potential health risk issues associated with radio frequency fields, including those from wireless

February 27th, 2007Committee meeting

Prof. Daniel Krewski

Environment committee  We can focus on the products, and as Mr. Glover mentioned, we can also establish guidelines. I'm pleased to observe to the committee that Health Canada has reduced the guideline for concentrations of radon in indoor air from 800 becquerels per cubic metre down to 200 becquerels

November 6th, 2006Committee meeting

Prof. Daniel Krewski

Environment committee  I had two points, if I could be brief. On the climate change question, Mr. Glover mentioned the link between climate change and air pollution, but I'd like to re-emphasize that. What you do to control the emission of greenhouse gases is probably going to result in a concomitant r

November 6th, 2006Committee meeting

Prof. Daniel Krewski

Environment committee  I have three quick points, Mr. Chairman. They all relate to the issue of indoor air quality, which has been brought up by several people who have spoken. First, it's clear that indoor air pollution is at least as big a problem as outdoor air pollution. The levels can be higher,

November 6th, 2006Committee meeting

Prof. Daniel Krewski

Environment committee  Yes and no. We conducted studies on children's health but we did not collect any new bio-monitoring data. We examined exposure levels to pesticides and other toxic chemicals. But I would like to mention, if you're interested particularly in bio-monitoring, the best place to go i

November 6th, 2006Committee meeting

Prof. Daniel Krewski

Environment committee  It was a point of general information, Mr. Chairman, which I think relates to Monsieur Lussier's question and to several other questions. There are two documents—one is published and the other will appear shortly—that might be of great relevance to the committee's deliberations.

November 6th, 2006Committee meeting

Prof. Daniel Krewski

Environment committee  Could we just get clarification on the PCPA? Are you referring to the additional tenfold margin of safety that's recommended unless there's evidence to the contrary, or to a more general statement?

November 6th, 2006Committee meeting

Prof. Daniel Krewski

Environment committee  Let me make two quick points in response to the question. First, you heard our recommendation to specifically identify children in the preamble to CEPA. I think Dr. Keefe made some very reasonable arguments that all sensitive subpopulations are really intended to be taken care o

November 6th, 2006Committee meeting

Prof. Daniel Krewski

Environment committee  We have a large report with a lot of detail, but the four most important points, which we're suggesting action be taken on, are as follows. Number one is an amendment to the preamble to CEPA that includes provision for consideration of children's environmental health. We've sug

November 6th, 2006Committee meeting

Prof. Daniel Krewski

Environment committee  May I have 42 seconds, Mr. Chairman, just to read our four bottom-line recommendations?

November 6th, 2006Committee meeting

Prof. Daniel Krewski