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Environmental fate & pathways

Monitoring data

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Administrative data

Endpoint:
monitoring data
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2008-2009
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Acceptable, well documented publication which meets basic scientific principles.

Data source

Reference
Reference Type:
other: white paper
Title:
Unnamed
Year:
2010

Materials and methods

Test guideline
Qualifier:
no guideline required
GLP compliance:
no
Type of measurement:
other: concentrations at various industrial and non-industrial sites
Media:
soil

Test material

Constituent 1
Chemical structure
Reference substance name:
1,2-Benzenedicarboxylic acid, di-C8-10-branched alkyl esters, C9-rich
EC Number:
271-090-9
EC Name:
1,2-Benzenedicarboxylic acid, di-C8-10-branched alkyl esters, C9-rich
Cas Number:
68515-48-0
Molecular formula:
C26 H42 O4
IUPAC Name:
Not available, not a single isomer
Details on test material:
- Name of test material (as cited in study report): diisononylphthalate (DINP)

Study design

Details on sampling:
Soil sample site locations in The Netherlands are shown in the figure below. A total of 49 soil samples were collected by RIVM. Samples were collected as in the earlier monitoring program conducted between 1999 and 2001 (Alcontrol Biochem Laboratoria 1999).

- Alcontrol Biochem Laboratoria. 1999. The analysis of phthalates in soil and sediment. Hoogvliet.

Results and discussion

Details on results:
DINP was detected in 3 of 49 soil samples, with a mean concentration of 0.093 mg/kg dry wt.
This is consistent with levels previously reported in Europe in a previous monitoring study (Vikelsoe et al. 1999) and reported by Clark (2010).

Any other information on results incl. tables

Sample Code

Location

DINP concentration (µg/kg dw)

 

B1 – 1

Bunnik

<50

 

B1 – 2

Bunnik

<50

 

B2 – 1

Velp

<50

 

B2 – 2

Velp

<50

 

B3

Deventer

<50

 

B4

Raamsdonkveer

<50

 

B5

Moerdijk Industrieterrein

<50

 

B6

Zonnemaire

(Schouwen Duiveland)

<50

 

B7

Ouddorp

<50

 

B8

Pernis

<50

 

B9

Delft

<50

 

B10

Roelofarendsveen

<50

 

B11

Ouderkerk aan de Amstel

<50

 

B12

Ilpendam

<50

 

B13

Hoorn

<50

 

B14 - 1

Lelystad

65

 

B14 - 2

Lelystad

96

 

 

Deventer

<50

 

 

Drouwen 2

<50

 

 

Drouwen 4

119

 

B15

Bunnik

<50

 

B16

Bunnik

<50

 

B17

Velp

<50

 

B18

Tolkamer - Spijk (river Rhine)

<50

 

B19

Heilig land stichting (Nijmegen)

<50

 

B20

Heilig land stichting (Nijmegen)

<50

 

B21

Vinkel

<50

 

B22

Waalwijk - harbour

<50

 

B23

Moerdijk Industrieterrein

<50

 

B24

Ridderkerk

<50

 

B25

Zevenhuizen

<50

 

B26

Drongels Kanaal

<50

 

B27

Wijnandsrade

<50

 

B28

Liempde

<50

 

B29

Lemmer

<50

 

B30

Lemmer

<50

 

B31

Lepelstraat

<50

 

B32

Rhenen

<50

 

B33

Utrecht

<50

 

B-GR-1

Gilse-Rijen

<50

 

B-GR-2

Gilse-Rijen

<50

 

B-P-1

Pernis

<50

 

B-P-2

Pernis

<50

 

B-P-3

Pernis

<50

 

B-S-1

Speulderveld

<50

 

B-S-2

Speulderveld

<50

 

B-S-3

Speulderveld

<50

 

B-V-1

Vianen

<50

 

B-V-2

Vianen

<50

 

Concentrations are reported as median values when possible. Non-detect samples were treated according to Nicolich (personal communication) as follows:

             If greater than 50% of data are below LOQ for any given medium, then the concentration was reported as <LOQ, and the LOQ was provided.

             If greater than 50% of the data are above LOQ for any given medium/tissue, then the LOQ was divided by the square root of 2, and this value was used in subsequent calculations.

Applicant's summary and conclusion

Conclusions:
Based on these samples, there appears to be no evidence of an increase in soil concentrations of DINP. Overall, the levels of DINP remain low in soils, and well within safe limits.
The PNEC for soil is 30 mg/kg dry wt for DINP (ECB 2003), more than two orders of magnitude greater than median detected levels of DINP.

[ECB]. 2003. EU Risk Assessment Report. 1,2-benzenedicarboxylic acid, di-C8-10-branched alkyl esters, C9-rich and di-"isononyl"phthalate (DINP).
Executive summary:

Overall, the levels of DINP remain at very low levels in the environment, and well within safe limits.