Patrick Levallois

TL;DR: The role of drinking-water nitrate exposure as a risk factor for specific cancers, reproductive outcomes, and other chronic health effects must be studied more thoroughly before changes to the regulatory level for nitrate in drinking water can be considered.

TL;DR: The spatio-temporal portrait of both groups of CDBPs that was generated demonstrates that, due to their high intra-seasonal changes, the calculation of average annual levels of these substances for compliance with regulations can vary widely.

TL;DR: Although PbB concentrations have declined dramatically since the 1970s, socio-demographic characteristics, the age of dwellings, and certain lifestyle behaviours are associated with higher levels, suggesting continual widespread exposure in the Canadian population.

TL;DR: The state of knowledge, gaps in understanding, and recommendations for epidemiological research relating to chemicals occurring in drinking water are summarized to help evaluate human exposure and the risks of a wide range of emerging contaminants.

TL;DR: Future research should develop methods to evaluate the effects of the DBP mixture and the interaction with personal characteristics, clarify the association between swimming pools and respiratory health, evaluate the occurrence of DBPs in low- and middle-income countries, and evaluate outcomes suggested by animal studies that have not been considered in epidemiological investigations.