Disappearance rates of chlorothalonil (TCIN) in the aquatic
environment Davies, PE (1988) Disappearance rates of
chlorothalonil (TCIN) in the aquatic environment. Bulletin of
Environmental Contamination and Toxicology, 40 (3). pp. 405-409.
ISSN 0007-4861 (Print) 1432-0800 (Online) Full text not
available from this repository. Chlorothalonil (TCIN) is a
chlorinated isopthalonitrile fungicide with low water
solubility. It is highly toxic to fish with 96h-LC50 values in
the range 10 - 30 micro g/L, and is rapidly metabolised to
glutathione conjugates. It is released into streams at low total
concentrations after agricultural spraying operations. A series
of experiments were performed using TCIN and 14C-TCIN in aqueous
solutions from different sources, at different temperatures and
with different stream substrates, in order or evaluate the
nature and rates of TCIN disappearance and the appearance of
polar derivatives of TCIN (DTCIN) in the aquatic environment.
Results indicate that TCIN is readily biodegraded at