Table 4.1 Fate of Chlorophenols in Water

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Process	MCPs	DCPs	TCPs	TTCPs	PCP
1/2 life in water	<1 to 26 days	>6 days	>9 to 35 days	>3.5 months	<3.5 months if aerobic
1/2 life in sediment				years if organic	years if organic
1/2 life in fish tissue	2 days	2 days	10 days	10 days	10 days
biological concentration factor	214 in bluegill sunfish	occurs in marine biota and crops	2,4,5-TCP 170-1900 in fish. 2,4,6-TCP 51-442 in plants. 115 to 12180 in fish and 3000 in inverts.	20-221 in fish muscles 40-8590 in fish liver. 1000 in leeches 1250 in Cladophora	10-15000 in fish, liver high and muscle low, lower still in algae and inverts.

Table 4.1 (continued)

Process	MCPs	DCPs	TCPs	TTCPs	PCP
loss by evaporation or by volatilization	not important	not important	not important	not important	of little importance in shallow water at pH 5, not important over pH 7.
hydrolysis and oxidation	not important	not important	not important	not important	not important
photolysis	unknown in nature, occurs in the laboratory	unlikely to be significant in nature	occurs in nature but significance is not known	unlikely to be of significance in nature	important in clear, shallow, neutral to alkaline waters.
sorption	there is a tendency to attach to organic particles	may be important in organic sediments	observed in lake and river sediments	observed in river and lake sediments	important, observed in acidic and in contamin-ated sites
biological degradation	occurs in the laboratory the rate in nature is not known.	rate depends on water quality and on prior bacterial exposure	reported in water, soil and bacterial cultures, likelier in stagnant waters.	reported in soil and bacterial cultures, slower in aquatic systems.	occurs in culture and in nature, best at higher temperatures and when aerobic.

From Reference 220.