In addition, specific substances found in the housing environment, including asbestos, radon, lead, molds, and volatile organic chemicals (VOCs), have a profound effect on the health of residents (Braubach and Bonnefoy 2001; Fuller-Thomson et al. 2000; Gravesen et al. 1999; Ranson 1991; Reijula 1998; Schwartz 1994).
To enhance the MCM-41 capacity in adsorbing specific substances, it is necessary to make surface modifications.
In the few last years, the need of reliable, fast and inexpensive methods for selective analysis of specific substances in complex mixtures has grown exponentially.
We relied exclusively on the pathologists' determination of the presence and/or lethality of specific substances in each case rather than arriving at our own conclusions from review of raw toxicology data.
Fiedler et al. (2000) noted that reactions to specific substances in individuals do not necessarily elicit physiologic responses.
Therefore, it is difficult to assess the full potential of the specific substances in the prevention of Alzheimer's disease.
Participants were asked about lifetime use of illegal drugs in general and about specific substances, including marijuana, heroin, cocaine, and methamphetamines.
Further research is needed to understand the mechanisms underlying the relationship between MetS and tooth loss, to explore ways to prevent teeth loss, and to enhance cessation of use of specific substances in rural populations.
The researchers concluded that improved air pollutant data reflecting both geographic variation and the specific substances in the ambient air mixture will lead to much better understanding of air pollutants on birth effects.
As done in other chapters, the behaviour of specific substances, such as hydrogen sulphide, has specifically been analysed.
