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EC number: 202-049-5
CAS number: 91-20-3
Naphthalene is easily biodegradable in water, sediment and soil under
aerobic and denitrifying conditions, but generally biotic decomposition
failed under anaerobic conditions. The apparently contradictory outcome
of Japanese studies (not biodegradable versus readily biodegradable)
indicate that standard testing may lack essential biological capacities
that are common in nature. From the entirety of empirical and
experimental data, the conclusion can be drawn that naphthalene has not
any potential for persistence. Naphthalene is assumed to be rapidly
biodegradable most of the time, at least inherently biodegradable under
less favorable conditions with no tendency to accumulate in the
environment. Furthermore, naphthalene is not bioaccumulating, based on
BCF values reported in fish to range between about 40 and about 1200.
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