Extended One-Generation Reproductive Toxicity Study (B.56 of the Commission Regulation on test methods as specified in Article 13(3) or OECD 443), basic test design (cohorts 1A and 1B without extension to include a F2 generation), one species, most appropriate route of administration, having regard to the likely route of human exposure, unless already provided as part of Annex IX requirements.

(h) information about the circumstances of the exposure to the pest control product, including the site, date, route of exposure, weather conditions, duration and subject information, which, in the case of a human subject, is restricted to age, gender and whether the subject is pregnant;

6. The potential for the organism to be involved in adverse human health effects, and the most likely route of human exposure to the organism.

Question No. 419 Ms. Kirsty Duncan: With respect to the risk of corrosion and spills and other safety concerns arising from the transport of bitumen in pipelines, and to government action to address these risks: (a) how does diluted bitumen compare with West Texas Intermediate (WTI) in terms of (i) abrasive material content, (ii) acid concentration, (iii) sulphur content, (iv) viscosity; (b) to what extent is diluted bitumen more likely than WTI to cause corrosion or erosion in the pipelines through which they respectively flow; (c) what is the composition of diluted bitumen in Canada; (d) what are all of the volatile chemicals, persistent organic pollutants or carcinogenic substances present in diluted bitumen in Canada; (e) in the pro ...[+++]cess of diluting bitumen in Canada, what are the (i) natural gas condensates used, (ii) other petroleum products used; (f) what is the process by which diluted bitumen corrodes pipelines, with specific reference to (i) abrasion, (ii) friction, (iii) high pressure, (iv) settling of sediment, (v) velocity, (vi) sulphur-reducing bacteria, (vii) other significant factors; (g) for all proposed or existing National Energy Board (NEB)-regulated pipelines, what is (i) the amount of hard sediment passing through the pipeline annually, (ii) the average pressure, (iii) the average temperature; (h) what, if any, (i) research, (ii) action, (iii) investment has the government undertaken to determine whether diluted bitumen can flow safely through pipelines; (i) what, if any, (i) research, (ii) action, (iii) investment has the government undertaken to determine whether or not conventional crude should be distinguished from diluted bitumen when setting minimum standards for pipelines; (j) what, if any, (i) research, (ii) action, (iii) investment has the government undertaken to design safety and spill responses and spill liability management capabilities that are appropriate specifically to diluted bitumen; (k) how does a diluted bitumen sp ...

By that I mean it may be very, very high doses, for example, of a chemical like DEHP that a rodent is exposed to, and by a route of exposure, very high oral dosing, that may not necessarily be relevant to how a medical therapy interacts with the human body.

The key challenges, however, were related to developing new methods for risk assessment that accounted for all routes of exposure related to drinking water and to the importance of factoring in very recent animal and human health effect studies related to TCE (1540) Finally, I would like to return to the issue of how we can best ensure up-to-date Guidelines for Canadian Drinking Water Quality.