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EC number: 249-854-8 | CAS number: 29797-40-8
Endpoint summary
Administrative data
Description of key information
Additional information
Monitoring data
Water from the following areas in The Netherlands was analysed in order to estimate the occurence of 2,4-dichlorotoluene:
a) Surface water of the riverin Lobith, Gorinchem and Maasluis (Flow time between Lobith and Gorinchem is generally 24 h and between Lobith an Maassluis 2 - 3 days depending on stream velocity.)
b) Water in lakes
c) Ground water
The detection limit was reported to be 0.01 µg/L.
Zoeteman et al. reported the results as follows: for the river, a DT50 of 1.0 day was estimated for 2,4-dichlorotoluene. This was explained with increased volatilisation and photochemical degradation by water turbulences.
For lake water, the half-lives were found to be at least by a factor of 10 higher than in the river. In ground water, 2,4-dichlorotoluene was not detected.
Linderset alreported the results in more detail, but these do not confirm the LD50 derived by Zoeteman et al.
The results were cited in the SIDS and in the HSDB data base, but only as reported by Zoeteman et al. (References: Zoeteman, 1980 and Linders, 1981, Reliability 3)
2,4-Dichlorotoluene could not be detected in the surface water and in the sediment of 7 areas of. The detection limit of the method used was 0.66 mg/L for surface water and 0.15 mg/L for sediment. (Reference: EA Japan, 1981, Reliability 3).
2,4-Dichlorotoluene was detected, but not quantified in water, soil/sediment and in air samples at the. Further information is not given in the HSDB database, the reliability cannot be assigned.
(Reference: HSDB-citation of Hauser and Bromberg, 1982)
In a comprehensive survey of wastewater from 4000 industrial and publicly owned treatment works sponsored by the Effluent Guidelines Division of the US EPA, 2,4-dichlorotoluene was identified and quantified in discharges of various industrial categories. Concentrations estimated in the discharges of the following industries (frequency of occurrence, median concentration):
- rubber processing: 1, 314.9 ppb
- organic chemicals: 11, 20.9 ppb
- publicly owned treatment works: 5, 40.4 ppb
- paint and ink industry: not reported, 1424 ppb
As further data are not reported in HSDB, the reliability is not assignable.
(Reference: HSDB-citation of Shackelford, 1983)
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