Cloransulam-methyl is a post-emergence herbicide. It has a moderate aqueous solubility, is non-volatile and, based on its chemical properties, is mobile and may leach to groundwater in some situations. It is generally non- persistent in soil systems but usually degrades quickly in aquatic systems via photolysis. It is not susceptible to hydrolysis. It has a low mammalian toxicity and has a high potential for bioaccumulation. It is a skin and eye irritant. It has a low level of toxicity to birds and aquatic invertebrates but is more toxic to fish, aquatic plants, algae, earthworms and honey bees.
Data alerts
The following alerts are based on the data in the tables below. An absence of an alert does not imply the substance has no implications for human health, biodiversity or the environment but just that we do not have the data to form a judgement.
R4 R = Peer reviewed scientific publications 4 = Verified data
Persistent
Note
pH sensitive : >365 days at pH 5, 118-231 days at pH 7, 3 days at pH 9, 10 days in natural water at pH 8, 67 days soil slurry at pH 6.5
Water-sediment DT₅₀ (days)
-
-
-
Water phase only DT₅₀ (days)
-
-
-
Soil adsorption and mobility
Property
Value
Source; quality score; and other information
Interpretation
Linear
Kd
-
US3 US = US Dept of Agriculture National Resources Conservation Service - various datasheets, databases and online sources 3 = Unverified data of known source
Mobile
Koc
30
Notes and range
Other sources: Koc range 12-262 mL g⁻¹ (R3)
Freundlich
Kf
-
-
-
Kfoc
-
1/n
-
Notes and range
-
pH sensitivity
-
Fate indices
Property
Value
Source; quality score; and other information
Interpretation
GUS leaching potential index
2.52
Calculated
Transition state
SCI-GROW groundwater index (μg l⁻¹) for a 1 kg ha⁻¹ or 1 l ha⁻¹ application rate
Value
5.71 X 10-02
Calculated
-
Note
-
Potential for particle bound transport index
Low
Calculated
-
Potential for loss via drain flow
Mobile
Calculated
-
Bio-concentration factor
BCF (l kg⁻¹)
Low risk
Q3 Q = Miscellaneous internet resources 3 = Unverified data of known source
Lewis, K.A., Tzilivakis, J., Warner, D. and Green, A. (2016) An international database for pesticide risk assessments and management. Human and Ecological Risk Assessment: An International Journal, 22(4), 1050-1064. DOI: 10.1080/10807039.2015.1133242