DEMANDA AMBIENTAL

This study provides a connection between metals and the size fraction of ash and recognises that samples are not all uniform across the size spectrum. It became apparent during the study that significant gaps remained and there are many areas that require further exploration. The following suggestions will not only test the results gained from this study but will provide connections to other fields of study.

 This study can be replicated in other similar forest types such as karri, mallee and wandoo forests, as well as in other habitats such as grasslands and savannah landscapes. It is expected that this will confirm the results of this study as well as provide variation associated with particular vegetation and soil substrates.

 This study could be repeated in a bushfire scenario, which would provide a comparison between a low and high intensity fire. Safety consideration would be a limiting factor.

 Research could be conducted to analyse the source, pathway and receptor of metals. Other studies did not demonstrate a relationship from this

viewpoint. Samples could be taken from the ash on-site, the ash plume in the waterway, or via air samples and from the receiving deposition area. The tin roof (Spinks, et. al., 2006) experiment could not discount the fact that metals in water tanks did not come from other sources. This type of study can provide these links if it is designed correctly.

 The aim of this study was to provide a link between vegetation and ash and, as such, it focused on the larger ash size fractions. This methodology

allows for a sieve of much smaller diameters than an Endecott sieve of 20 microns. One of the outcomes was that metals can increase in

concentration up to a certain temperature. Would this hypothesis be tested by examining finer ash sizes?

 The initial proposal for this research to study smoke is still considered as valid. If equipment problems can be overcome that would add another dimension to the area of knowledge. It could also provide a link to the smaller size fractions used in other proposed studies.

These study proposals are dependent on funding, interest and industry-based opportunities. If they can be explored they may add to the understanding of processes involved in this field of research.

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