Clearly, indoor air is affected by the ambient air outside as well, but there are additional impacts on indoor air, whether it's mould, off-gassing of products and building materials, and so on. From a health perspective, we're very interested in looking at indoor air as well and ensuring that we have appropriate guidelines in place to regulate pollutants and indoor air. For health, to us, it's a very important thing to be doing as well.
On May 17th, 2007. See this statement in context.