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Water Quality Research and Development Needs The
key to being able to apply the water quality criteria for total
and dissolved organic carbon is the ability to distinguish
changes due to anthropogenic sources against the background
of strong and temporal variation that exists in many aquatic
systems in British Columbia. The available data on levels of
organic carbon in British Columbia aquatic systems indicates
that many locations are sampled infrequently, or have not been
sampled in recent years. For these systems, it will be difficult
to detect whether a 20% change in organic carbon levels has
occurred as the result of an anthropogenic activity. We therefore
recommend that regular monitoring programs be carried out for
aquatic systems that are or may become influenced by anthropogenic
activities, as well as at appropriate reference sites.
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