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Environmental fate & pathways

Biodegradation in water and sediment: simulation tests

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Reference
Endpoint:
biodegradation in water and sediment: simulation tests
Type of information:
calculation (if not (Q)SAR)
Remarks:
Migrated phrase: estimated by calculation
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Data is from computational model developed by USEPA
Qualifier:
according to guideline
Guideline:
other: Modeling database
Principles of method if other than guideline:
Fugacity Model by EPI Suite estimation database.
GLP compliance:
no
Radiolabelling:
not specified
Oxygen conditions:
other: estimation
Inoculum or test system:
not specified
Parameter followed for biodegradation estimation:
test mat. analysis
Compartment:
other: water, material (mass) balance
% Recovery:
0.56
Compartment:
other: sediment, material (mass) balance
% Recovery:
47.2
% Degr.:
50
Parameter:
other: Half life in water
Sampling time:
180 d
Remarks on result:
other: Other details not known
% Degr.:
50
Parameter:
other: Half-life in sediment
Sampling time:
1 620.833 d
Remarks on result:
other: Other details not known
Compartment:
water
DT50:
180 d
Type:
other: estimation
Temp.:
25 °C
Remarks on result:
other: Other details not known
Compartment:
sediment
DT50:
1 620.833 d
Type:
other: estimation
Temp.:
25 °C
Remarks on result:
other: Other details not known
Transformation products:
not specified
Evaporation of parent compound:
not specified
Volatile metabolites:
not specified
Residues:
not specified

 

 

Mass Amount

(percent)

Half-Life

(hr)

Emissions

(kg/hr)

Water

0.56

4.32e+003

1000

Sediment

47.2

3.89e+004

0

 

 

Fugacity

(atm)

Reaction

(kg/hr)

Advection

(kg/hr)

Reaction

(percent)

Advection

(percent)

Water

2.96e-051

40.7

254

1.36

8.45

Sediment

8e-051

381

427

12.7

14.2

 

Validity criteria fulfilled:
not specified
Conclusions:
Estimated half life of 1,3,6-Naphthalenetrisulfonic acid, 7-((2-((aminocarbonyl)amino)-4-((4-chloro-6-((4-(ethenylsulfonyl)phenyl)amino)-1,3,5-triazin-2-yl)amino)phenyl)azo)-, sodium salt in water was 180 days (4320 h) and in sediment estimated to be 1620.83 days (38900 h).
Executive summary:

Estimation Programs Interface (EPI) Suite (2016) prediction model was run to predict the half-life in water and sediment for the test compound 1,3,6-Naphthalenetrisulfonic acid, 7-((2-((aminocarbonyl)amino)-4-((4-chloro-6-((4-(ethenylsulfonyl)phenyl)amino)-1,3,5-triazin-2-yl)

amino)phenyl)azo)-, sodium salt (CAS No. 94158 -80 -2). Half-life of 1,3,6 -Naphthalenetrisulfonic acid,7 -((2 -((aminocarbonyl)amino)-4 -((4 -chloro-

6-((4-(ethenylsulfonyl)phenyl)amino)-1,3,5-triazin-2-yl)amino)phenyl)azo)-,sodium salt in water is estimated to be 180 days (4320 h)

while in sediment it is 1620.83 days (38900 hrs). Based on these half-life value of 1,3,6 -Naphthalenetrisulfonic acid,7 -((2 -((aminocarbonyl)amino)

-4-((4-chloro-6-((4-(ethenylsulfonyl)phenyl)amino)-1,3,5-triazin-2-yl)amino)phenyl)azo)-, sodium salt, it is concluded that the chemical is persistent

in both water and sediment.

Description of key information

Estimation Programs Interface (EPI) Suite (2016) prediction model was run to predict the half-life in water and sediment for the test compound 1,3,6-Naphthalenetrisulfonic acid, 7-((2-((aminocarbonyl)amino)-4-((4-chloro-6-((4-(ethenylsulfonyl)phenyl)amino)-1,3,5-triazin-2-yl)amino)phenyl)azo)-, sodium salt (CAS No. 94158 -80 -2). Half-life of 1,3,6 -Naphthalenetrisulfonic acid,7 -((2 -((aminocarbonyl)amino)-4 -((4 -chloro-6-((4-(ethenylsulfonyl)phenyl)amino)-1,3,5-triazin-2-yl)amino)phenyl)azo)-,sodium salt in water is estimated to be 180 days (4320 h) while in sediment it is 1620.83 days (38900 hrs). Based on these half-life value of 1,3,6 -Naphthalenetrisulfonic acid,7 -((2 -((aminocarbonyl)amino)-4-((4-chloro-6-((4-(ethenylsulfonyl)phenyl)amino)-1,3,5-triazin-2-yl)amino)phenyl)azo)-, sodium salt, it is concluded that the chemical is persistent in both water and sediment.

Key value for chemical safety assessment

Half-life in freshwater:
180 d
at the temperature of:
25 °C
Half-life in freshwater sediment:
1 620.83 d
at the temperature of:
25 °C

Additional information

Estimation Programs Interface (EPI) Suite (2016) prediction model was run to predict the half-life in water and sediment for the test compound 1,3,6-Naphthalenetrisulfonic acid,7-((2-((aminocarbonyl)amino)-4-((4-chloro-6-((4-(ethenylsulfonyl)phenyl)amino)-1,3,5-triazin-2-yl)

amino)phenyl)azo)-, sodium salt(CAS No. 94158 -80 -2). Half-life of 1,3,6 -Naphthalenetrisulfonic acid,7 -((2 -((aminocarbonyl)amino)-4 -((4 -chloro-

6-((4-(ethenylsulfonyl)phenyl)amino)-1,3,5-triazin-2-yl)amino)phenyl)azo)-,sodium salt in water is estimated to be 180 days (4320 h)

while in sediment it is 1620.83 days (38900 hrs). Based on these half-life value of 1,3,6 -Naphthalenetrisulfonic acid,7 -((2 -((aminocarbonyl)amino)

-4-((4-chloro-6-((4-(ethenylsulfonyl)phenyl)amino)-1,3,5-triazin-2-yl)amino)phenyl)azo)-, sodium salt, it is concluded that the chemical is persistent

in both water and sediment.

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